Julie May Chen, M.D.
Internal Medicine Physician · Gaithersburg, MD
Julie May Chen, M.D. is an internal medicine physician with a practice address in Gaithersburg, Maryland, and NPI 1629048467, issued on Jan 24, 2006. Check the license (Maryland D0059999, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Julie May Chen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0059999 MD
Self-reported in NPPES; status is on the state search - Practice location
- 655 Watkins Mill RD, Gaithersburg, MD 20879
- Phone
- (240) 632-4000
- Enumerated
- Jan 24, 2006
- Record last updated
- Jan 10, 2022
- Medicare enrollment
- Enrolled (PECOS I20031104000659); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 655 Watkins Mill RD
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Verify Julie May Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0059999Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average internal medicine physician in 2024
541 Medicare Part D claims for 164 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium44 claims
- Albuterol Sulfate Hfa36 claims
- Amlodipine Besylate24 claims
- Hydrochlorothiazide21 claims
- Metformin Hcl20 claims
- Meloxicam19 claims
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
- Kaiser Foundation Health Plan OF The Mid Atlantic States, IncGaithersburg, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Julie May Chen among 3,904 internal medicine physician records in Maryland
Julie May Chen, 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1996 · median 2003 among the 2,445 with a school on file
- Record last updated2022 · 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).
67 internal medicine physician records list a practice address in Gaithersburg
They are 67 of the 2,580 NPPES records with a practice address in Gaithersburg, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Gaithersburg → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jose De Leon Carpio, MDGaithersburg, MD 208791275682320
- Lingling Gao, D.O.Gaithersburg, MD 208791285959932
- Jean Hou, MDGaithersburg, MD 208791750442273
- Shailini Jain, MDGaithersburg, MD 208791588711022
- Supriya Janakiraman, M.D., M.P.H.Gaithersburg, MD 208791114361672
- Poonam Maru, DO, FACPGaithersburg, MD 208791780974329
- Joseph McClain, M.D.Gaithersburg, MD 208791194968297
- John Melnick, M. D.Gaithersburg, MD 208791679654651
Common questions
What is Julie May Chen, M.D.'s NPI number?
Julie May Chen, M.D.'s National Provider Identifier (NPI) is 1629048467, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Julie May Chen, M.D. located?
The NPPES record lists a practice address at 655 Watkins Mill RD, Gaithersburg, MD, 20879. Phone: (240) 632-4000. Providers update this record themselves, so call before visiting.
How can I verify Julie May Chen, M.D.'s license?
NPPES lists Maryland license number D0059999, 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 Julie May Chen, M.D. prescribe under Medicare Part D?
In 2024, Julie May Chen, M.D. had 541 Medicare Part D claims for 164 beneficiaries; 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.