NPPES file of Aug 9, 2026

Tanya Qin Tan, M.D.

Internal Medicine Physician · Bethesda, MD

Tanya Qin Tan, M.D. is an internal medicine physician with a practice address in Bethesda, Maryland, and NPI 1366837031, issued on Mar 31, 2015. Check the license (Maryland D0084957, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366837031
Name
Tanya Qin Tan
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
D0084957 MD
Self-reported in NPPES; status is on the state search
Practice location
8901 Rockville Pike, Bethesda, MD 20889
Phone
(301) 295-4000
Enumerated
Mar 31, 2015
Record last updated
Jul 1, 2025
Medicare enrollment
Enrolled (PECOS I20181012000455); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 8901 Rockville Pike

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Laleh Abdolazadeh, DDSProsthodontics1083927362
  2. Remsh Abdulhafedh, RRTRegistered Respiratory Therapist1508514191
  3. Gathi Abraham, M.D., M.P.H.Child & Adolescent Psychiatry Physician1629411368
  4. Keeley AdamsMilitary Health Care Provider1346183258
  5. Michael Adams, M.D.Anesthesiology Physician1760720171
  6. Oluwatoyin AdelakunPsychiatric/Mental Health Nurse Practitioner1053167270

Verify Tanya Qin Tan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0084957
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

16 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Tanya Tan16
  2. Specialty average3,176

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Patient First Maryland Medical Group PLLCLutherville, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tanya Qin Tan among 3,904 internal medicine physician records in Maryland

Tanya Qin Tan, M.D. is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 77% of them.

  • NPI issued2015 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2015 · median 2003 among the 2,445 with a school on file
  • Record last updated2025 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

288 internal medicine physician records list a practice address in Bethesda

They are 288 of the 7,245 NPPES records with a practice address in Bethesda, and 3,904 internal medicine physician records in Maryland.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Darrell Baranko, M.D.Bethesda, MD 208891366431082
  2. Jeffrey Blair, M.D.Bethesda, MD 208891184625378
  3. Richard Catherina, M.D.Bethesda, MD 208891437131505
  4. Kim Gibson, MDBethesda, MD 208891700861374
  5. Heather Grote, MDBethesda, MD 208891275512204
  6. Paul Han, MDBethesda, MD 208891144205162
  7. Douglas Hawk, M.D.Bethesda, MD 208891013990886
  8. Christopher Martin, M.D.Bethesda, MD 208891750362505

Common questions

What is Tanya Qin Tan, M.D.'s NPI number?

Tanya Qin Tan, M.D.'s National Provider Identifier (NPI) is 1366837031, issued on Mar 31, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Tanya Qin Tan, M.D. located?

The NPPES record lists a practice address at 8901 Rockville Pike, Bethesda, MD, 20889. Phone: (301) 295-4000. Providers update this record themselves, so call before visiting.

How can I verify Tanya Qin Tan, M.D.'s license?

NPPES lists Maryland license number D0084957, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Tanya Qin Tan, M.D. prescribe under Medicare Part D?

In 2024, Tanya Qin Tan, M.D. had 16 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.