DR. EMILY ZERWAS RITCHIE M.D.
NPI 1306008255
Radiology - Diagnostic Radiology in Sacramento, CA

Q: What is Emily Ritchie's NPI number?

The NPI number for Emily Ritchie is 1306008255. It was assigned to this individual provider in the NPPES registry on July 1, 2008. The provider is also known as Dr. Emily Jane Zerwas M.D..

Q: What is Emily Ritchie's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Emily Ritchie was last updated on April 10, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.

Active since July 01, 2008PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

2315 STOCKTON BLVD, SACRAMENTO, CA 95817(318) 780-6542 Get Directions Write a Review

NPPES record last updated: April 10, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Emily Zerwas Ritchie M.d. NPPES

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

DR. EMILY ZERWAS RITCHIE M.D. (NPI 1306008255) is an individual diagnostic radiology provider in Sacramento, California, licensed in South Carolina (LL31027) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS, is affiliated with Sentara Rmh Medical Center, and is a graduate of Louisiana State University School Of Medicine In Shreveport (2008).

NPPES Registry Identity

NPI1306008255

Entity TypeIndividualFemale

Primary Taxonomy2085R0202X

Provider Legal NameDR. EMILY ZERWAS RITCHIECredential: M.D.

Location Address2315 STOCKTON BLVDSacramento, CA 95817-2201

Mailing Address4860 Y St Ste 3100Sacramento, CA 95817-2307 · (916) 703-2273

Phone(318) 780-6542

Sole ProprietorYes

Medical School CMSLouisiana State University School Of Medicine In ShreveportGraduated 2008

Enumeration DateJuly 1, 2008

Last NPPES UpdateApril 10, 2013

✔ NPI 1306008255 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in SC · LL31027

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

2315 STOCKTON BLVD, Sacramento, CA 95817

Open in Google Maps ↗

Other Names 1

Former Name (1)Dr. Emily Jane Zerwas M.d.

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. Emily Zerwas Ritchie M.d. 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 ID9133368681

PECOS Enrollment IDI20140702000583

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 Reassignment

Medicare enrollment records show Emily Ritchie reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rockingham Radiologists Ltd

2,289 mi

Diagnostic Radiology

2010 HEALTH CAMPUS DRIVE
Harrisonburg, VA 22801

Reassigned Medicare billing, Virginia enrollment
15 clinicians in this Medicare group

NPI 1851348957 (540) 432-8950

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 63

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.

Screening mammography 77067

Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.

1,566 services1,566 patients

Screening 3d breast mammography 77063

Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.

1,420 services1,420 patients

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.

650 services556 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.

193 services189 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.

188 services184 patients

Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) G0279

Diagnostic digital breast tomosynthesis is a 3D imaging test that allows doctors to examine your breast tissue layer by layer. It's performed on one or both sides. It helps in detecting abnormalities more accurately. It's often done in addition to other tests.

132 services130 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.

129 services128 patients

Diagnostic mammography of 1 breast 77065

Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.

126 services113 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.

125 services115 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.

95 services95 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.

91 services89 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.

83 services80 patients

Limited ultrasound scan of 1 breast 76642

A limited ultrasound scan of one breast is a non-invasive imaging test. It uses sound waves to create pictures of the inside of your breast. It helps identify any unusual growths or changes. It's safe, quick, and typically painless.

79 services77 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

76 services76 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.

72 services66 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.

71 services58 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.

69 services65 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.

66 services65 patients

Diagnostic mammography of both breasts 77066

Diagnostic mammography involves using special imaging technology to capture detailed images of both breasts. This procedure helps in identifying any unusual changes or abnormalities. It's a crucial step in ensuring breast health and early detection of potential issues.

59 services59 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.

58 services58 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.

58 services57 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.

48 services47 patients

Mri scan of brain without contrast 70551

An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.

45 services45 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.

42 services37 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.

39 services39 patients

Limited ultrasound scan behind abdominal cavity 76775

A limited ultrasound scan behind the abdominal cavity is a non-invasive imaging method that helps visualize structures in the back of your abdomen. This procedure uses sound waves to create pictures of these areas, assisting in diagnosing certain conditions.

39 services39 patients

Low dose ct scan of chest for lung cancer screening 71271

A low-dose CT scan of the chest is a quick, painless procedure that uses a small amount of radiation to create detailed images of your lungs. It's a key tool for early detection of lung cancer, especially for those at high risk.

38 services38 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.

37 services37 patients

Dxa bone density measurement of forearm, finger, hand, or foot 77081

A DXA bone density measurement of the forearm, finger, hand, or foot is a non-invasive procedure that uses X-rays to measure the amount of calcium and other minerals in your bones. This test helps to assess the strength of your bones and your risk of fractures.

37 services37 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.

36 services31 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.

33 services32 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.

33 services33 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.

31 services27 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.

30 services30 patients

Ct scan of blood vessels of head with contrast 70496

A CT scan of the head's blood vessels with contrast is a diagnostic procedure. A special dye (contrast) is injected into your body to make the blood vessels visible on the scan. This helps identify issues like blockages or abnormalities in your head's blood vessels.

28 services28 patients

Ct scan of blood vessels of neck with contrast 70498

A CT scan of the neck's blood vessels with contrast is a diagnostic procedure. It uses X-rays and a special dye to create detailed images of your neck's blood vessels. This helps doctors detect issues such as blockages or abnormalities.

28 services28 patients

Mri scan of abdomen before and after contrast 74183

An MRI scan of the abdomen before and after contrast provides detailed images of your abdominal organs. Initially, images are taken without a contrast agent. Then, a safe dye is administered, usually via an IV, to highlight certain areas, giving a clearer picture to help diagnose various conditions.

26 services26 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.

26 services26 patients

Ct scan of abdomen and pelvis before and after contrast 74178

A CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.

25 services25 patients

Mri scan of both breasts 77049

An MRI scan of both breasts is a non-invasive procedure using magnetic fields and radio waves to create detailed images of your chest area. This aids in detecting any abnormalities, ensuring your health and well-being.

24 services24 patients

Biopsy of breast and placement of locating device using ultrasound, first growth 19083

A breast biopsy with locating device placement involves taking a small sample from an unusual growth, using ultrasound for precise targeting. This sample is studied for any abnormal cells. A locating device is also placed to mark the area for future reference.

22 services22 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.

20 services20 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.

19 services19 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.

19 services18 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.

19 services17 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.

19 services17 patients

Complete ultrasound of abdomen and pelvis artery and vein blood flow 93975

This procedure uses sound waves to create images of your abdomen and pelvis, specifically focusing on the arteries and veins. It helps in assessing the blood flow and detecting any abnormalities, ensuring your overall well-being.

19 services19 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.

18 services18 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.

18 services18 patients

Ct scan of heart structure with contrast 75572

A CT scan of the heart with contrast is a non-invasive test. A dye is injected into your veins, which helps to highlight heart structures in the images. The CT scanner uses X-rays to create detailed pictures of your heart, aiding in diagnosis.

18 services18 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.

17 services17 patients

Mri scan of brain before and after contrast 70553

An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.

16 services16 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.

16 services16 patients

Nuclear medicine study of lung circulation 78580

A nuclear medicine study of lung circulation involves the use of a safe, radioactive substance to visualize lung function. It helps in diagnosing conditions like blood clots. The substance is injected and images are taken to study the blood flow in your lungs.

16 services16 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.

15 services15 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.

14 services14 patients

X-ray of elbow, minimum of 3 views 73080

An elbow X-ray with a minimum of 3 views is a non-invasive imaging test. It helps visualize the bones of the elbow from different angles. This aids in diagnosing conditions like fractures or arthritis. The procedure is quick, painless, and usually takes around 15 minutes.

14 services13 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.

13 services13 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.

12 services11 patients

X-ray of surgical specimen 76098

An X-ray of a surgical specimen involves taking detailed images of the tissue or organ removed during surgery. This helps in examining the specimen more closely to understand the disease better. It's a safe, non-invasive procedure, providing valuable insights to your healthcare team.

12 services11 patients

X-ray of middle spine, 3 views 72072

An X-ray of the middle spine, with 3 views, is a diagnostic procedure where images are taken from different angles (front, side, and angled) to assess the health of your spine. It helps identify issues like fractures, tumors, or degenerative conditions.

11 services11 patients

X-ray of upper arm, minimum of 2 views 73060

An X-ray of the upper arm with a minimum of 2 views involves capturing images of your arm from different angles. This helps in assessing the bones and surrounding tissues for any abnormalities or injuries. It's a quick, painless procedure.

11 services11 patients

Double contrast x-ray of esophagus 74221

A double contrast x-ray of the esophagus is a diagnostic procedure that uses a special type of x-ray and a contrast material to capture detailed images of your esophagus. This helps in identifying any abnormalities or issues.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Sentara Rmh Medical Center

Acute Care Hospitals · Harrisonburg, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490004

Location2010 Health Campus DriveHarrisonburg, VA 22801 · Harrisonburg City County

Emergency services Birthing friendly

University Of Virginia Medical Center

Acute Care Hospitals · Charlottesville, VA

4/5 CMS rating

OwnershipGovernment - State

CMS Certification Number490009

Location1215 Lee StreetCharlottesville, VA 22908 · Charlottesville City County

Emergency services Birthing friendly

Augusta Health

Acute Care Hospitals · Fishersville, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490018

Location78 Medical Center DriveFishersville, VA 22939 · Augusta County

Emergency services Birthing friendly

Shenandoah Memorial Hospital

Critical Access Hospitals · Woodstock, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number491305

Location759 South Main StreetWoodstock, VA 22664 · Shenandoah County

Emergency services

Page Memorial Hospital, Inc

Critical Access Hospitals · Luray, VA

OwnershipVoluntary non-profit - Private

CMS Certification Number491307

Location200 Memorial DriveLuray, VA 22835 · Page County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95817 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

$92.61 typical visit price

range $60.44 – $180.85

Typical copayment $23.15 (range $15.11 – $45.21)

Most-billed visit code 99203

Established Patient

$75.03 typical visit price

range $19.88 – $148.15

Typical copayment $18.75 (range $4.97 – $37.03)

Most-billed visit code 99213

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.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

100

Improvement Activities

Reported Quality Measures

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 -…

98%755 patients

Radiology: Reminder System for Screening Mammograms

Percentage of patients undergoing a screening mammogram whose information is entered into a reminder system with a target due date for the next mammogram

100%1,691 patients

Radiology: Stenosis Measurement in Carotid Imaging Reports

Percentage of final reports for carotid imaging studies (neck magnetic resonance angiography [MRA], neck computed tomography angiography [CTA], neck duplex ultrasound, carotid angiogram) performed that include direct or indirect reference to measurements of…

100%60 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.

KATHLEEN STUCKER

Social Worker (Clinical)

2315 STOCKTON BLVD
SACRAMENTO, CA 95817

Sacramento County (916) 734-5628

MARIA ISABEL AGUILAR

Registered Nurse

2315 STOCKTON BLVD
SACRAMENTO, CA 95817

Sacramento County (916) 734-8730

NATHAN JACOB VANDEN BERGE

Emergency Medicine

2315 STOCKTON BLVD
SACRAMENTO, CA 95817

Sacramento County (916) 734-8570

PETER SANTIAGO C.O., C.PED., FAAOP

Specialist

2315 STOCKTON BLVD
SACRAMENTO, CA 95817

Sacramento County (916) 734-7045

SHIELA LEIGH SAMSON ANGULO DO

Student in an Organized Health Care Education/Training Program

2315 STOCKTON BLVD
SACRAMENTO, CA 95817

Sacramento County (916) 734-5974

MS. KATHLEEN DOLORES VAN LEEUWEN MD

Surgery (Pediatric Surgery)

2315 STOCKTON BLVD
SACRAMENTO, CA 95817

Sacramento County (916) 734-3229

STEPHEN MULFORD

Physical Therapy Assistant

2315 STOCKTON BLVD, ROOM 0512
SACRAMENTO, CA 95817

Sacramento County (916) 734-7248

MR. MARK YAMADA

Occupational Therapist

2315 STOCKTON BLVD
SACRAMENTO, CA 95817

Sacramento County (916) 734-7248

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 Emily Ritchie's NPI number?

The NPI number for Emily Ritchie is 1306008255. It was assigned to this individual provider in the NPPES registry on July 1, 2008. The provider is also known as Dr. Emily Jane Zerwas M.D..

Where is Emily Ritchie located?

Emily Ritchie practices at 2315 Stockton Blvd, Sacramento, CA 95817. The listed phone number is (318) 780-6542.

What is Emily Ritchie's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Emily Ritchie enrolled in Medicare?

Yes. Emily Ritchie 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 organization bills Medicare for Emily Ritchie's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Emily Ritchie reassigns Medicare benefits to Rockingham Radiologists Ltd (Harrisonburg, VA). The 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 Emily Ritchie's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Emily Ritchie affiliated with any hospitals?

According to CMS data, Emily Ritchie is affiliated with Sentara Rmh Medical Center, University Of Virginia Medical Center, Augusta Health, Shenandoah Memorial Hospital and Page Memorial Hospital, Inc.

When was this NPI record last updated?

The NPPES record for Emily Ritchie was last updated on April 10, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.