James Amerena, M.D.
Family Medicine Physician · Frederick, MD
James Amerena, M.D. is a family medicine physician with a practice address in Frederick, Maryland, and NPI 1912981929, issued on Dec 2, 2005. Check the license (Maryland D0036421, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- James Amerena
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- D0036421 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9093 Ridgefield Dr, Frederick, MD 21701
- Phone
- (301) 682-4100
- Enumerated
- Dec 2, 2005
- Entity
- Type 1 · individual
Also registered at 9093 Ridgefield Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Amerena in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0036421Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
186 Medicare Part D claims for 62 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium15 claims
- Metformin Hcl13 claims
- Amlodipine Besylate12 claims
- Simvastatin11 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.
Industry payments in 2024: $15.20
1 payment, mostly food and beverage; the largest payer was Novo Nordisk Inc. The 53,013 providers of this specialty with any payment received $861.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
62 family medicine physician records list a Frederick practice address
They are 62 of the 3,981 NPPES records with a Frederick practice address, and 1,882 family medicine physician records in Maryland.
All 62 in Frederick → All 1,882 in Maryland → Every provider in Frederick →
Other family medicine physician records in Maryland
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- Hanan Aboumatar, MD, MPHBaltimore, MD1437526746
- Ndubuisi Achufusi, M.D.Greenbelt, MD1124057260
- Jose Acol, MDMount Airy, MD1801890306
- Phyllis Acquah, M.D.Silver Spring, MD1285996868
- Charles Adamo, M.D.Annapolis, MD1063437358
- Gillian Adams, M.D.Bel Air, MD1912086794
- Jerry Adams, M.D.Lavale, MD1710088265
- Ifeoluwa AdekanyeDundalk, MD1699419804
Common questions
What is James Amerena, M.D.'s NPI number?
James Amerena, M.D.'s National Provider Identifier (NPI) is 1912981929, issued on Dec 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Amerena, M.D. located?
The NPPES record lists a practice address at 9093 Ridgefield Dr, Frederick, MD, 21701. Phone: (301) 682-4100. Providers update this record themselves, so call before visiting.
How can I verify James Amerena, M.D.'s license?
NPPES lists Maryland license number D0036421, 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 James Amerena, M.D. prescribe under Medicare Part D?
In 2024, James Amerena, M.D. had 186 Medicare Part D claims for 62 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.