DR. RUBEN KRISHNANANTHAN MD
NPI 1891807863
Nuclear Medicine in Lynnwood, WA

Q: What is Ruben Krishnananthan's NPI number?

The NPI number for Ruben Krishnananthan is 1891807863. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Q: What is Ruben Krishnananthan's specialty?

The primary specialty registered for this NPI is Nuclear Medicine with taxonomy code 207U00000X.

Active since August 31, 2006PECOS EnrolledAccepts Medicare Assignment

19020 33RD AVE W, SUITE 210, LYNNWOOD, WA 98036(425) 563-1500(425) 563-1501 Get Directions Write a Review

NPPES record last updated: December 30, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 30, 2025, Oct 28, 2019, Sep 28, 2016 and 1 more (4 updates tracked since 2016).

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About Dr. Ruben Krishnananthan Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. RUBEN KRISHNANANTHAN MD (NPI 1891807863) is an individual nuclear medicine provider in Lynnwood, Washington, licensed in Washington (MD00045187) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Providence Regional Medical Center Everett, and maintains a secondary practice location in Tonasket.

NPPES Registry Identity

NPI1891807863

Entity TypeIndividualMale

Primary Taxonomy207U00000X

Provider Legal NameDR. RUBEN KRISHNANANTHANCredential: MD

Location Address19020 33RD AVE W, SUITE 210Lynnwood, WA 98036-4746

Mailing Address19020 33rd Ave W Ste 210Lynnwood, WA 98036-4748 · (425) 563-1500 · Fax (425) 563-1374

Phone(425) 563-1500

Fax(425) 563-1501

Sole ProprietorNo

Medical School CMSOtherGraduated 1993

Enumeration DateAugust 31, 2006

Last NPPES UpdateDecember 30, 20254 updates tracked since enumeration

NPPES CertifiedDecember 30, 2025

✔ NPI 1891807863 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNuclear MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207U00000X

License✔ Licensed in WA · MD00045187

Definition

A nuclear medicine specialist employs the properties of radioactive atoms and molecules in the diagnosis and treatment of disease and in research. Radiation detection and imaging instrument systems are used to detect disease as it changes the function and metabolism of normal cells, tissues and organs. A wide variety of diseases can be found in this way, usually before the structure of the organ involved by the disease can be seen to be abnormal by any other techniques. Early detection of coronary artery disease (including acute heart attack), early cancer detection and evaluation of the effect of tumor treatment, diagnosis of infection and inflammation anywhere in the body and early detection of blood clot in the lungs are all possible with these techniques. Unique forms of radioactive molecules can attack and kill cancer cells (e.g., lymphoma, thyroid cancer) or can relieve the severe pain of cancer that has spread to bone

Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License MD00045187 (WA)

19020 33RD AVE W, Lynnwood, WA 98036

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Secondary Practice Location 1

Location 1203 S Western AveTonasket, WA 98855-8803 · Phone (509) 486-2151 · Fax (509) 223-1640

Other Identifiers 4

Other0356361WA · L&i-radia-rest Of Wa

Other0356365WA · L&i-swedish Radia

Other0356366WA · L&i-evergreen Radia

Medicaid1021587WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ruben Krishnananthan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID749387272

PECOS Enrollment IDI20070517000694, I20160909000458, I20221202000281, I20241122001931

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Ruben Krishnananthan reassigns Medicare billing to 20 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Radia Inc P S

Same address

Diagnostic Radiology

19020 33RD AVE W, SUITE 210
Lynnwood, WA 98036

Reassigned Medicare billing, Idaho, New Jersey and Washington enrollments
Also billed through NPI 1700045572 (Washington)
49 clinicians in this Medicare group

NPI 1932196607 (425) 563-1500

Proliance Surgeons, Inc., P.S.

2.8 mi

Magnetic Resonance Imaging (MRI)

6808 220TH ST SW STE 105
Mountlake Terrace, WA 98043

Reassigned Medicare billing, Washington enrollment
589 clinicians in this Medicare group

NPI 1184140477 (425) 967-6490

Swedish Radia Imaging Center At Edmonds LLC

3.0 mi

Diagnostic Radiology

21700 HIGHWAY 99
Edmonds, WA 98026

Reassigned Medicare billing, Washington enrollment
200 clinicians in this Medicare group

NPI 1164494373 (425) 640-4949

Swedish Health Services

4.2 mi

Body Imaging

13020 MERIDIAN AVE S
Everett, WA 98208

Reassigned Medicare billing, Washington enrollment
194 clinicians in this Medicare group

NPI 1114356904 (425) 357-3960

Evergreen Radia LLC

8.8 mi

Diagnostic Radiology

11521 NE 128TH ST, SUITE 200
Kirkland, WA 98034

Reassigned Medicare billing, Washington enrollment
196 clinicians in this Medicare group

NPI 1922095694 (425) 952-6100

Optum Care Washington PLLC

10 mi

Multi-Specialty

3901 HOYT AVE
Everett, WA 98201

Reassigned Medicare billing, Washington enrollment
1,285 clinicians in this Medicare group

NPI 1831186766 (425) 259-0966

Swedish Health Services

15 mi

Family Medicine

1600 7TH AVE STE 110
Seattle, WA 98101

Reassigned Medicare billing, Washington enrollment
663 clinicians in this Medicare group

NPI 1073553947 (206) 267-4390

Radia Imaging Center Holdings LLC

15 mi

Diagnostic Radiology

1229 MADISON ST STE 900
Seattle, WA 98104

Reassigned Medicare billing, Washington enrollment
204 clinicians in this Medicare group

NPI 1639653017 (206) 292-6233

Swedish Health Services

15 mi

Internal Medicine

800 5TH AVE, STE 600
Seattle, WA 98104

Reassigned Medicare billing, Washington enrollment
1,270 clinicians in this Medicare group

NPI 1689612954 (206) 320-2700

Public Hospital District No 4 King County Washington

28 mi

Critical Access

9801 FRONTIER AVE SE
Snoqualmie, WA 98065

Reassigned Medicare billing, Washington enrollment
Also billed through NPI 1144432634 (Washington)
144 clinicians in this Medicare group

NPI 1902846546 (425) 831-2300

South Sound Radiologists Inc P S

60 mi

Diagnostic Radiology

3417 ENSIGN RD NE
Olympia, WA 98506

Reassigned Medicare billing, Washington enrollment
186 clinicians in this Medicare group

NPI 1902990500 (360) 493-4600

Central Washington Health Services Association

95 mi

Emergency Medical Services

1201 S MILLER ST
Wenatchee, WA 98801

Reassigned Medicare billing, Washington enrollment
651 clinicians in this Medicare group

NPI 1801937453 (509) 662-1511

Wenatchee Valley Hospital

95 mi

Multi-Specialty

820 N CHELAN AVE
Wenatchee, WA 98801

Reassigned Medicare billing, Washington enrollment
558 clinicians in this Medicare group

NPI 1669719688 (509) 663-8711

Yakima Valley Memorial Physicians

118 mi

General Acute Care Hospital

2811 TIETON DRIVE
Yakima, WA 98902

Reassigned Medicare billing, Washington enrollment
565 clinicians in this Medicare group

NPI 1306933940 (509) 575-8825

Okanogan County Public Hospital District No. 3

132 mi

Critical Access

810 JASMINE ST
Omak, WA 98841

Reassigned Medicare billing, Washington enrollment
179 clinicians in this Medicare group

NPI 1255387403 (509) 826-1760

Okanogan County Public Hospital Dist No 4

144 mi

Critical Access

203 S WESTERN AVE
Tonasket, WA 98855

Reassigned Medicare billing, Washington enrollment
155 clinicians in this Medicare group

NPI 1164580700 (509) 486-2151

Radia Oregon Radiology Medical Group LLC

381 mi

Diagnostic Radiology

842 E MAIN ST
Medford, OR 97504

Reassigned Medicare billing, New Jersey enrollment
2 clinicians in this Medicare group

NPI 1073385423 (425) 563-1500

Radia California Radiology Medical Group Inc

648 mi

Diagnostic Radiology

121 SOTOYOME ST
Santa Rosa, CA 95405

Reassigned Medicare billing, New Jersey enrollment
3 clinicians in this Medicare group

NPI 1740982032 (425) 563-1500

County Of Santa Clara

717 mi

Clinic/Center

2741 MIDDLEFIELD RD
Palo Alto, CA 94306

Reassigned Medicare billing, California enrollment
Also billed through NPI 1043354020 (California), NPI 1629301346 (California)
2,460 clinicians in this Medicare group

NPI 1285228080 (408) 885-5000

Msu Health Care Inc

1,854 mi

Neonatal-Perinatal Medicine

1215 E MICHIGAN AVE
Lansing, MI 48912

Reassigned Medicare billing, Michigan enrollment
365 clinicians in this Medicare group

NPI 1477188555 (517) 364-2670

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 73

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

795 services708 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

384 services380 patients

Ct scan head or brain without contrast 70450

A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.

368 services361 patients

Ct scan of upper spine without contrast 72125

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

213 services212 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

162 services159 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

118 services118 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

117 services109 patients

Mri scan of lower spinal canal without contrast 72148

An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.

91 services91 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

89 services89 patients

Ct scan of lower spine without contrast 72131

A CT scan of the lower spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed images of your lower back area, helping to detect conditions like fractures, infections, or tumors. It's painless and generally quick.

88 services88 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

85 services85 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

82 services62 patients

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

80 services80 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

74 services59 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

72 services45 patients

Mri scan of leg joint without contrast 73721

An MRI scan of your leg joint is a non-invasive procedure that uses magnetic fields and radio waves to create detailed images of the structures within your leg. This helps doctors diagnose or monitor conditions without using contrast dye.

72 services69 patients

Ct scan of leg without contrast 73700

A CT scan of the leg is a non-invasive imaging test that uses X-rays to capture detailed images of your leg's bones, muscles, and blood vessels. It doesn't use contrast dye and doesn't cause any pain. It helps in diagnosing injuries or diseases.

69 services66 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

61 services57 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

57 services48 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

57 services55 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

55 services28 patients

X-ray of shoulder, minimum of 2 views 73030

54 services50 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

52 services52 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

A nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.

52 services52 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

49 services49 patients

X-ray of lower and sacral spine, minimum of 4 views 72110

An X-ray of the lower and sacral spine involves capturing images of your lower back and tailbone area. It helps in identifying issues like fractures, arthritis, or other abnormalities. At least four different angles or 'views' are taken to get a comprehensive picture.

48 services45 patients

Mri scan of arm joint without contrast 73221

An MRI scan of the arm joint is a non-invasive imaging procedure that uses magnetic fields and radio waves to create detailed images of the structures within your arm joint. No contrast dye is used in this process. It helps to diagnose or monitor conditions like arthritis, injuries, or infections.

48 services47 patients

X-ray of hip, 2-3 views 73502

48 services48 patients

Ct scan of face without contrast 70486

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

47 services47 patients

X-ray of lower and sacral spine, 2-3 views 72100

47 services47 patients

Ct scan of middle spine without contrast 72128

A CT scan of the middle spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed pictures of your mid-spine area. This scan helps doctors identify issues like fractures, tumors, or infections. No dye is used in this procedure.

45 services45 patients

X-ray of hand, minimum of 3 views 73130

35 services24 patients

X-ray of knee, 3 views 73562

35 services33 patients

Ct scan of blood vessels of abdomen and pelvis with contrast 74174

A CT scan of the abdomen and pelvis with contrast is a medical imaging procedure. A special dye, called contrast, is used to make blood vessels more visible. The scan produces detailed images of your abdomen and pelvis, helping doctors to diagnose conditions or plan treatments.

35 services35 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

34 services34 patients

Mri scan of upper spinal canal without contrast 72141

An MRI scan of the upper spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your upper spine. This helps doctors identify issues such as injuries, infections or diseases. No dye is used.

33 services33 patients

X-ray of lower and sacral spine, minimum of 4 views 72110

32 services32 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

31 services24 patients

Nuclear medicine study of bone and/or joint whole body 78306

A nuclear medicine study of bone and/or joint whole body involves injecting a small amount of radioactive material into your body. This material travels to your bones and emits energy. A special camera captures this energy, creating images of your bones to help identify any abnormalities.

31 services31 patients

X-ray of foot, minimum of 3 views 73630

30 services27 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

29 services26 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

29 services29 patients

X-ray of upper spine, 2-3 views 72040

An X-ray of the upper spine, with 2-3 views, is a painless procedure that employs a small amount of radiation to capture images of your neck and upper back. It assists in diagnosing conditions like arthritis, fractures, or spinal deformities.

28 services22 patients

Ct scan of pelvis without contrast 72192

A CT scan of the pelvis without contrast is a non-invasive imaging test. It uses X-rays to create detailed pictures of your lower abdomen area. It helps in detecting issues like injuries, inflammation, or abnormal growths. It doesn't involve any dye injection.

27 services27 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

25 services25 patients

Ct scan of arm without contrast 73200

A CT scan of the arm without contrast is a non-invasive imaging test. It uses X-ray technology to capture detailed images of your arm's structures. It doesn't involve any contrasting dye, hence, minimal preparation is required. It helps in diagnosing injuries or conditions affecting the arm.

24 services24 patients

Mri scan of leg without contrast 73718

An MRI scan of the leg without contrast is a non-invasive imaging procedure. It uses a magnetic field and radio waves to create detailed images of the structures in your leg, such as bones, muscles, and blood vessels. No contrast dye is used.

22 services21 patients

X-ray of upper spine, 4-5 views 72050

An X-ray of the upper spine with 4-5 views is a non-invasive imaging test. It uses radiation to capture detailed images of the bones and structures in your neck and upper back. This procedure helps identify issues like fractures, infections, or deformities.

20 services19 patients

Mri scan of leg before and after contrast 73720

An MRI scan of the leg involves using a magnetic field and radio waves to create detailed images of the structures within your leg. Initially, images are taken without a contrast agent. Then, a contrast agent is injected into your body to enhance the images, highlighting certain areas for closer examination.

20 services19 patients

Mri scan of lower spinal canal before and after contrast 72158

An MRI scan of the lower spinal canal with contrast is a non-invasive imaging procedure. It uses magnetic fields to generate detailed images of your lower spine. A contrast agent is injected to enhance these images, helping doctors see issues more clearly.

19 services19 patients

Mri scan of middle spinal canal without contrast 72146

An MRI scan of the middle spinal canal without contrast is a non-invasive imaging test. It uses magnetic fields and radio waves to create detailed images of your spine. This helps doctors identify any abnormalities or issues in your spinal canal. No dye is used in this procedure.

18 services18 patients

Mri scan of lower spinal canal without contrast 72148

18 services18 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

18 services16 patients

X-ray of knee, 1-2 views 73560

18 services16 patients

X-ray of ribs on side of body, minimum of 3 views 71101

This is a diagnostic procedure where a machine emits a small amount of radiation to capture images of your ribs from at least three different angles. It helps to identify issues like fractures or infections. It's a quick, painless process.

17 services17 patients

X-ray of finger, minimum of 2 views 73140

An X-ray of the finger involves capturing images of your finger from at least two different angles. This non-invasive procedure helps in visualizing the bones and joints, aiding in the diagnosis of fractures, infections, or other abnormalities. Minimal discomfort may be experienced.

17 services16 patients

X-ray of middle spine, 2 views 72070

An X-ray of the middle spine, or thoracic spine, involves capturing two different images of the area. This non-invasive procedure uses small amounts of radiation to visualize the bones and tissues in your back, helping to identify any abnormalities or injuries.

16 services13 patients

Nuclear medicine study of bone taken at different times 78315

A nuclear medicine bone study involves injecting a small amount of radioactive material into your body. This material collects in the bones and is detected by a special camera to create images. These images are taken at different times to track changes and help diagnose bone conditions.

16 services16 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

15 services15 patients

X-ray of upper spine, 4-5 views 72050

14 services14 patients

X-ray of both hips, 3-4 views 73522

An X-ray of both hips with 3-4 views is a safe imaging procedure. It involves capturing multiple pictures of your hip joints from different angles. This helps in diagnosing conditions like arthritis or fractures. You'll need to stay still during the process for clear images.

14 services14 patients

X-ray of chest, 2 views 71046

13 services12 patients

X-ray of entire middle and lower spine, 2-3 views 72082

An X-ray of your middle and lower spine involves capturing images of these areas to identify any abnormalities. The procedure involves taking 2-3 different views for a comprehensive understanding. It's non-invasive and usually painless, helping doctors diagnose conditions like fractures or infections.

13 services13 patients

Mri scan of upper spinal canal before and after contrast 72156

An MRI scan of the upper spinal canal before and after contrast is a non-invasive imaging test. It uses magnetic fields and radio waves to create detailed images of your spine. Contrast dye is injected to enhance these images, providing clearer visuals for accurate diagnosis.

13 services13 patients

X-ray of thigh bone, minimum 2 views 73552

An X-ray of the thigh bone is a non-invasive imaging test. It involves passing a small amount of radiation through the thigh to produce images of the bone structure. At least two different angles are captured for a comprehensive view. This helps detect fractures, infections, or other abnormalities.

13 services13 patients

X-ray of abdomen, 2 views 74019

An X-ray of the abdomen, 2 views, is a non-invasive imaging test. It uses a small amount of radiation to capture pictures of the structures inside your belly. The two views provide different angles, helping doctors see your organs clearly and detect any issues.

13 services13 patients

X-ray of upper spine, 2-3 views 72040

12 services12 patients

Ct scan of lower spine with contrast 72132

A CT scan of the lower spine with contrast is a non-invasive imaging test that uses X-ray technology and a contrast dye to create detailed pictures of your lower spine. It helps in diagnosing conditions like herniated discs, fractures, or tumors.

12 services12 patients

Ct scan of leg with contrast material 73701

A CT scan of the leg with contrast material is an imaging procedure. A special dye, the contrast material, is used to highlight certain areas, making them easier to see. This scan helps to detect issues like fractures, infections, or tumors in the leg.

12 services12 patients

Mri scan of leg joint without contrast 73721

12 services12 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

12 services12 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

12 services12 patients

X-ray of middle and lower spine, 2 views 72080

An X-ray of the middle and lower spine, or 2-view lumbar spine X-ray, involves capturing images of your back. This helps detect issues like fractures, infections, or other abnormalities. It's painless and quick, taking only a few minutes.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Providence Regional Medical Center Everett

Acute Care Hospitals · Everett, WA

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number500014

Location1321 Colby AvenueEverett, WA 98201 · Snohomish County

Emergency services Birthing friendly

Swedish Medical Center

Acute Care Hospitals · Seattle, WA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500027

Location747 BroadwaySeattle, WA 98122 · King County

Emergency services Birthing friendly

Yakima Valley Memorial

Acute Care Hospitals · Yakima, WA

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500036

Location2811 Tieton DriveYakima, WA 98902 · Yakima County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98036 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$130.99 typical visit price

range $57.27 – $172.80

Typical copayment $32.74 (range $14.31 – $43.20)

Most-billed visit code 99204

Established Patient

$100.78 typical visit price

range $18.56 – $141.11

Typical copayment $25.19 (range $4.64 – $35.27)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Nuclear Medicine: Correlation with Existing Imaging Studies for All Patients Undergoing Bone Scintigraphy

Percentage of final reports for all patients, regardless of age, undergoing bone scintigraphy that include physician documentation of correlation with existing relevant imaging studies (e.g., x-ray, MRI, CT, etc.) that were performed

100%26 patients

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques

Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…

100%429 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. PATRICK T. HURLEY M.D.

Radiology (Diagnostic Radiology)

19020 33RD AVE W, SUITE 210
LYNNWOOD, WA 98036

Snohomish County (425) 563-1500

DR. MICHAEL SCOT FISHMAN M.D.

Radiology (Diagnostic Radiology)

19020 33RD AVE W, SUITE 210
LYNNWOOD, WA 98036

Snohomish County (425) 563-1500

DR. JOHN CLEMETT M.D.

Radiology (Diagnostic Radiology)

19020 33RD AVE W, SUITE 210
LYNNWOOD, WA 98036

Snohomish County (425) 563-1500

NORMAN P GOODWIN DDS PS

Dentist

19020 33RD AVE W, SUITE 200
LYNNWOOD, WA 98036

Snohomish County (425) 771-2022

DR. MELISSA A. HAYES BALMADRID M.D.

Radiology (Diagnostic Radiology)

19020 33RD AVE W, SUITE 210
LYNNWOOD, WA 98036

Snohomish County (425) 563-1500

DR. STEVEN D. SPERLING M.D.

Radiology (Diagnostic Radiology)

19020 33RD AVE W, SUITE 210
LYNNWOOD, WA 98036

Snohomish County (425) 563-1500

DR. PHILIP J. VOGELZANG MD

Radiology (Vascular & Interventional Radiology)

19020 33RD AVE W, SUITE 210
LYNNWOOD, WA 98036

Snohomish County (425) 563-1500

DR. MARC G. KOENIG SR. MD

Radiology (Diagnostic Radiology)

19020 33RD AVE W, SUITE 210
LYNNWOOD, WA 98036

Snohomish County (425) 563-1500

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ruben Krishnananthan's NPI number?

The NPI number for Ruben Krishnananthan is 1891807863. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Ruben Krishnananthan located?

Ruben Krishnananthan practices at 19020 33rd Ave W Suite 210, Lynnwood, WA 98036. The listed phone number is (425) 563-1500.

What is Ruben Krishnananthan's specialty?

The primary specialty registered for this NPI is Nuclear Medicine with taxonomy code 207U00000X.

Is Ruben Krishnananthan enrolled in Medicare?

Yes. Ruben Krishnananthan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Ruben Krishnananthan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ruben Krishnananthan reassigns Medicare benefits to 20 organizations: Radia Inc P S (Lynnwood, WA), Proliance Surgeons, Inc., P.S. (Mountlake Terrace, WA), Swedish Radia Imaging Center At Edmonds LLC (Edmonds, WA), Swedish Health Services (Everett, WA), Evergreen Radia LLC (Kirkland, WA) and 15 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ruben Krishnananthan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ruben Krishnananthan accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list Ruben Krishnananthan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ruben Krishnananthan affiliated with any hospitals?

According to CMS data, Ruben Krishnananthan is affiliated with Providence Regional Medical Center Everett, Swedish Medical Center and Yakima Valley Memorial.

When was this NPI record last updated?

The NPPES record for Ruben Krishnananthan was last updated on December 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.