Bobak Robert Mozayeni, M.D.
Rheumatology Physician · Gaithersburg, MD
Bobak Robert Mozayeni, M.D. is a rheumatology physician with a practice address in Gaithersburg, Maryland, and NPI 1174677587, issued on Jan 23, 2007. Check the license (Maryland D42423, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Bobak Robert Mozayeni
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- D42423 MD
Self-reported in NPPES; status is on the state search - Practice location
- 910 Clopper Road, Gaithersburg, MD 20878
- Phone
- (240) 221-0000
- Enumerated
- Jan 23, 2007
- Record last updated
- Mar 18, 2025
- Fax
- (240) 221-0441
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 214 in Maryland → Look up another NPI →
Verify Bobak Robert Mozayeni in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D42423Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average rheumatology physician in 2024
199 Medicare Part D claims for 24 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Primaquine24 claims
- Liothyronine Sodium18 claims
- Clarithromycin17 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.
Bobak Robert Mozayeni among 214 rheumatology physician records in Maryland
Bobak Robert Mozayeni, M.D. is one of 214 rheumatology physician records with a practice address in Maryland. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 40% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- 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 207RR0500X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Maryland
There are 214 rheumatology physician records in Maryland.
All 214 in Maryland → Every provider in Gaithersburg → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Keith Hull, MD, PHDGaithersburg, MD 208781053688804
- Linda Katz, M.D.Gaithersburg, MD 208771679675797
- Austin Collison, DOBethesda, MD 208891326795063
- Jess Edison, M.D.Bethesda, MD 208891548246952
- Christopher Forster, M.D.Bethesda, MD 208891275732943
- Basmah Jalil, MDBethesda, MD 208891649587635
- Zachary KeroskyBethesda, MD 208891962935841
- Michael Loncharich, MDBethesda, MD 208891093240624
Common questions
What is Bobak Robert Mozayeni, M.D.'s NPI number?
Bobak Robert Mozayeni, M.D.'s National Provider Identifier (NPI) is 1174677587, issued on Jan 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Bobak Robert Mozayeni, M.D. located?
The NPPES record lists a practice address at 910 Clopper Road, Gaithersburg, MD, 20878. Phone: (240) 221-0000. Providers update this record themselves, so call before visiting.
How can I verify Bobak Robert Mozayeni, M.D.'s license?
NPPES lists Maryland license number D42423, 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 Bobak Robert Mozayeni, M.D. prescribe under Medicare Part D?
In 2024, Bobak Robert Mozayeni, M.D. had 199 Medicare Part D claims for 24 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.