MRS. TAMARA NICOLETTE OEI M.D.
NPI 1992870653
Radiology - Diagnostic Radiology in Rockville, MD

Q: What is Tamara Oei's NPI number?

The NPI number for Tamara Oei is 1992870653. It was assigned to this individual provider in the NPPES registry on November 21, 2006.

Q: What is Tamara Oei'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 Tamara Oei was last updated on February 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 November 21, 2006PECOS Enrolled

75/100

CMS Quality Rating

2101 E JEFFERSON ST, ROCKVILLE, MD 20852(301) 816-2424 Get Directions Write a Review

NPPES record last updated: February 8, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 8, 2022, Jan 18, 2022, May 31, 2021 (3 updates tracked since 2021).

On this page

About Mrs. Tamara Nicolette Oei M.d. NPPES

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

MRS. TAMARA NICOLETTE OEI M.D. (NPI 1992870653) is an individual diagnostic radiology provider in Rockville, Maryland, licensed in Maryland (D0071929) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS, is affiliated with Suburban Hospital, and is a graduate of Harvard Medical School (2005).

NPPES Registry Identity

NPI1992870653

Entity TypeIndividualFemale

Primary Taxonomy2085R0202X

Provider Legal NameMRS. TAMARA NICOLETTE OEICredential: M.D.

Location Address2101 E JEFFERSON STRockville, MD 20852-4908

Mailing Address14175 Saddle River DrNorth Potomac, MD 20878-4273 · (617) 462-7203

Phone(301) 816-2424

Sole ProprietorNo

Medical School CMSHarvard Medical SchoolGraduated 2005

Enumeration DateNovember 21, 2006

Last NPPES UpdateFebruary 8, 20223 updates tracked since enumeration

NPPES CertifiedFebruary 8, 2022

✔ NPI 1992870653 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in MD · D0071929✔ Licensed in DC · MD039261✔ Licensed in VA · 0101249158

Definition

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

2101 E JEFFERSON ST, Rockville, MD 20852

Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Tamara Nicolette Oei M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2860524261

PECOS Enrollment IDI20111103000597, I20111104000107

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 Tamara Oei reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Johns Hopkins University

3.8 mi

Neurological Surgery

8600 OLD GEORGETOWN RD
Bethesda, MD 20814

Reassigned Medicare billing, Maryland enrollment
4,483 clinicians in this Medicare group

NPI 1578569240 (410) 955-5000

Johns Hopkins University

33 mi

Body Imaging

600 N WOLFE ST
Baltimore, MD 21205

Reassigned Medicare billing, District of Columbia enrollment
190 clinicians in this Medicare group

NPI 1093796609 (410) 356-8186

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 58

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.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

46,580 services371 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.

863 services744 patients

Injection, gadobutrol, 0.1 ml A9585

Gadobutrol is a contrast agent used during MRI scans to help provide clearer images. It's injected into your vein before the scan. This helps doctors to see certain areas more clearly for better diagnosis. It's generally safe with few side effects.

844 services100 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.

533 services493 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.

310 services287 patients

Ct scan of abdomen and pelvis with contrast 74177

300 services285 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.

257 services239 patients

Ct scan of chest with contrast 71260

237 services222 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.

199 services197 patients

X-ray of chest, 2 views 71046

181 services175 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.

172 services170 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.

118 services111 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.

104 services104 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.

101 services93 patients

Mri scan of abdomen before and after contrast 74183

90 services88 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.

68 services59 patients

Ct scan of chest without contrast 71250

65 services64 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.

53 services53 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.

53 services46 patients

Mri scan of pelvis before and after contrast 72197

An MRI scan of the pelvis before and after contrast is a non-invasive imaging technique. It uses magnetic fields and radio waves to capture detailed images of your lower abdomen. Contrast dye, safe for the body, improves image clarity. This helps detect abnormalities more accurately.

45 services43 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.

45 services45 patients

Imaging for evaluation of swallowing function 74230

This process, known as a swallowing study, uses imaging technology to view how food and liquid move from your mouth to your stomach. It helps identify any issues you may have swallowing, which can be crucial for determining the best treatment plan.

41 services41 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

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.

38 services32 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.

36 services33 patients

Ct scan of abdomen and pelvis without contrast 74176

36 services35 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.

36 services36 patients

X-ray of abdomen, 1 view 74018

34 services27 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.

33 services33 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.

33 services31 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.

33 services31 patients

Mri scan of pelvis before and after contrast 72197

32 services32 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.

32 services28 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.

30 services30 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.

26 services23 patients

X-ray of shoulder, minimum of 2 views 73030

25 services22 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.

23 services23 patients

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

23 services23 patients

Single contrast x-ray of esophagus 74220

A single contrast x-ray of the esophagus is a non-invasive procedure where a radiopaque substance is swallowed to highlight the esophagus. This allows doctors to capture clear images of the area, aiding in the diagnosis of any abnormalities or issues.

22 services22 patients

Ct scan of blood vessels of chest with contrast 71275

21 services21 patients

X-ray of lower leg, 2 views 73590

An X-ray of the lower leg, 2 views, is a quick, painless test that produces images of the bones in your lower leg. It helps to identify fractures, infections, or diseases. Two different angles are used to provide a comprehensive view of the leg's structure.

20 services16 patients

X-ray of foot, minimum of 3 views 73630

20 services19 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.

19 services19 patients

Ct scan of abdomen and pelvis before and after contrast 74178

18 services18 patients

X-ray lower and sacral spine, 2-3 views bending views 72120

This procedure involves taking X-ray images of your lower and sacral spine in 2-3 different angles while you bend. It helps in assessing spinal flexibility and identifying any abnormalities or injuries. It's safe, quick, and usually painless.

17 services17 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.

17 services17 patients

X-ray for bone length assessment 77073

An X-ray for bone length assessment is a simple, non-invasive imaging test. It helps to evaluate the length of your bones and identify any discrepancies or abnormalities. This procedure is quick, painless, and provides valuable information for your healthcare provider.

16 services16 patients

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

15 services15 patients

X-ray of ankle, minimum of 3 views 73610

15 services15 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.

14 services14 patients

Ct scan of blood vessels of abdomen with contrast 74175

A CT scan of the abdomen's blood vessels with contrast is a diagnostic procedure. A safe dye is injected into your veins, which helps to highlight your blood vessels on the images. This helps doctors examine your abdominal blood vessels more clearly.

14 services14 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.

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

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.

12 services12 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.

11 services11 patients

X-ray of hip, 2-3 views 73502

11 services11 patients

Diagnostic ct scan of large intestine without contrast 74261

A diagnostic CT scan of the large intestine without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed images of your large intestine. This helps detect abnormalities or diseases. It doesn't involve any dye or contrast material.

11 services11 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Suburban Hospital

Acute Care Hospitals · Bethesda, MD

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210022

Location8600 Old Georgetown RoadBethesda, MD 20814 · Montgomery County

Emergency services

Adventist Healthcare Shady Grove Medical Center

Acute Care Hospitals · Rockville, MD

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210057

Location9901 Medical Center DriveRockville, MD 20850 · Montgomery County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20852 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

$100.31 typical visit price

range $65.18 – $194.86

Typical copayment $25.07 (range $16.29 – $48.71)

Most-billed visit code 99203

Established Patient

$80.66 typical visit price

range $21.40 – $158.88

Typical copayment $20.16 (range $5.35 – $39.72)

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.

75/100

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

Individually scored

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.

MONET STANFORD

Pharmacist

2101 E JEFFERSON ST
ROCKVILLE, MD 20852

Montgomery County (301) 816-7336

DR. KAJAL DASGUPTA M.D.

Internal Medicine

2101 E JEFFERSON ST, KAISER PERMANENTE MEDICARE ENROLLMENT
ROCKVILLE, MD 20852

Montgomery County (301) 816-2424

MS. AUDREY K TSAO MD

Orthopaedic Surgery

2101 E JEFFERSON ST, STE 100
ROCKVILLE, MD 20852

Montgomery County (602) 616-1434

DR. MECHELE SILVA MD

Obstetrics & Gynecology

2101 E JEFFERSON ST
ROCKVILLE, MD 20852

Montgomery County (301) 816-7405

DR. JOSEPHINE M WHITFORD PHARMD

Pharmacist

2101 E JEFFERSON ST, PHARMACY ADMINISTRATION 3 WEST
ROCKVILLE, MD 20852

Montgomery County (301) 816-6211

DR. JULIANNE MARGARET CAMBA MD

Internal Medicine

2101 E JEFFERSON ST
ROCKVILLE, MD 20852

Montgomery County (202) 853-2996

DR. SUSAN KAY MORIARTY M.D.

Pediatrics

2101 E JEFFERSON ST, KAISER PERMANENTE, PPQA, 6 WEST, ATTN: THERESA BROOKS
ROCKVILLE, MD 20852

Montgomery County (301) 816-2424

DR. RAVI VARMA DATLA M.D.

Internal Medicine

2101 E JEFFERSON ST, SUITE 308
ROCKVILLE, MD 20852

Montgomery County (301) 816-7405

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 Tamara Oei's NPI number?

The NPI number for Tamara Oei is 1992870653. It was assigned to this individual provider in the NPPES registry on November 21, 2006.

Where is Tamara Oei located?

Tamara Oei practices at 2101 E Jefferson St, Rockville, MD 20852. The listed phone number is (301) 816-2424.

What is Tamara Oei's specialty?

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

Is Tamara Oei enrolled in Medicare?

Yes. Tamara Oei is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Tamara Oei's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tamara Oei reassigns Medicare benefits to 2 organizations: Johns Hopkins University (Bethesda, MD) and Johns Hopkins University (Baltimore, MD). 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 Tamara Oei's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Tamara Oei affiliated with any hospitals?

According to CMS data, Tamara Oei is affiliated with Suburban Hospital and Adventist Healthcare Shady Grove Medical Center.

When was this NPI record last updated?

The NPPES record for Tamara Oei was last updated on February 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.