NPPES file of Aug 9, 2026

Carolyn Agnes Hammett, MD

Internal Medicine Physician · Hyattsville, MD

Carolyn Agnes Hammett, MD is an internal medicine physician with a practice address in Hyattsville, Maryland, and NPI 1154331908, issued on Aug 8, 2006. Check the license (Maryland D0039966, 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
1154331908
Name
Carolyn Agnes Hammett
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
D0039966 MD
Self-reported in NPPES; status is on the state search
Practice location
1835 University Blvd E, Hyattsville, MD 20783
Phone
(301) 431-4030
Enumerated
Aug 8, 2006
Record last updated
Jun 12, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(301) 431-4826
Medicaid ID
019941900 MD
Medicare enrollment
Enrolled (PECOS I20100907000344); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 1988
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 1835 University Blvd E

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

  1. Gary Arrindell, D.D.SGeneral Practice Dentistry1801915434
  2. Fariba Baghai, M.D.Legal Medicine1336184696
  3. Lakeesha HamptonClinical Social Worker1427356302

Verify Carolyn Agnes Hammett in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0039966
    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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46% more Medicare Part D claims than the average internal medicine physician in 2024

4,626 Medicare Part D claims for 563 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 24 claims were for opioids.

  1. Carolyn Hammett4,626
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium340 claims
  2. Amlodipine Besylate317 claims
  3. Lisinopril217 claims
  4. Rosuvastatin Calcium172 claims
  5. Losartan Potassium169 claims
  6. Levothyroxine Sodium163 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

  1. Medstar Medical Group II LLCWashington, DC

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

Carolyn Agnes Hammett among 3,904 internal medicine physician records in Maryland

Carolyn Agnes Hammett, MD 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
  • Graduated1988 · median 2003 among the 2,445 with a school on file
  • Record last updated2008 · 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).

16 internal medicine physician records list a practice address in Hyattsville

They are 16 of the 2,196 NPPES records with a practice address in Hyattsville, and 3,904 internal medicine physician records in Maryland.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Babak Amirshahi Shirazi, M.D.Hyattsville, MD 207831255649695
  2. Jeffrey Swett, D.O.Adelphi, MD 207831831250562
  3. Meher Alam, MDLandover Hills, MD 207841497374193
  4. Teresa Allen, MDHyattsville, MD 207821407911712
  5. Neelam Ashai, M.D.Landover Hills, MD 207841659326429
  6. Manash Das, M.D.Landover Hills, MD 207841942467071
  7. Charles Dillon, M.D.Hyattsville, MD 207821881743292
  8. Paul Loeser, MDHyattsville, MD 207821902301583

Common questions

What is Carolyn Agnes Hammett, MD's NPI number?

Carolyn Agnes Hammett, MD's National Provider Identifier (NPI) is 1154331908, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Carolyn Agnes Hammett, MD located?

The NPPES record lists a practice address at 1835 University Blvd E, Hyattsville, MD, 20783. Phone: (301) 431-4030. Providers update this record themselves, so call before visiting.

How can I verify Carolyn Agnes Hammett, MD's license?

NPPES lists Maryland license number D0039966, 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 Carolyn Agnes Hammett, MD prescribe under Medicare Part D?

In 2024, Carolyn Agnes Hammett, MD had 4,626 Medicare Part D claims for 563 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.