NPPES file of Aug 9, 2026

Mary Elisabeth Benjamin, MD

Internal Medicine Physician · Silver Spring, MD

Mary Elisabeth Benjamin, MD is an internal medicine physician with a practice address in Silver Spring, Maryland, and NPI 1801066824, issued on Mar 5, 2008. Check the license (Maryland D0048252, 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
1801066824
Name
Mary Elisabeth Benjamin
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
D0048252 MD
Self-reported in NPPES; status is on the state search
Practice location
12162 Tech RD, Silver Spring, MD 20904
Phone
(301) 681-6654
Enumerated
Mar 5, 2008
Record last updated
Oct 26, 2023
Fax
(301) 681-2607
Medicaid ID
719005100 MD
Medicare enrollment
Enrolled (PECOS I20150416000530); accepts Medicare assignment
Medical or professional school
Howard University College Of Medicine, 1986
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 12162 Tech RD

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

  1. Jean Welsh, MDFamily Medicine Physician1861592461

Verify Mary Elisabeth Benjamin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0048252
    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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37% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,008 Medicare Part D claims for 300 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 29 claims were for opioids.

  1. Mary Benjamin2,008
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate118 claims
  2. Atorvastatin Calcium116 claims
  3. Albuterol Sulfate Hfa98 claims
  4. Lisinopril88 claims
  5. Fluticasone Propionate80 claims
  6. Gabapentin75 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. Total Health Care IncBaltimore, MD

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

Mary Elisabeth Benjamin among 3,904 internal medicine physician records in Maryland

Mary Elisabeth Benjamin, 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 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 39% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1986 · median 2003 among the 2,445 with a school on file
  • Record last updated2023 · 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).

186 internal medicine physician records list a practice address in Silver Spring

They are 186 of the 6,531 NPPES records with a practice address in Silver Spring, and 3,904 internal medicine physician records in Maryland.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Eskinder Afework, M.D.Silver Spring, MD 209041912938408
  2. Rajeev Batra, M.D.Silver Spring, MD 209041003918228
  3. Lynne Diggs, M.DSilver Spring, MD 209041306835475
  4. Sita Krishnamoorthy, MDSilver Spring, MD 209041760557607
  5. Michael Leibowitz, M.D.Silver Spring, MD 209041235119447
  6. Eugenio Machado, M.D.Silver Spring, MD 209041457383077
  7. Nnenna Okigbo, MDSilver Spring, MD 209041538167028
  8. Emmanuel Osei-Boamah, M.D.Silver Spring, MD 209041639282460

Common questions

What is Mary Elisabeth Benjamin, MD's NPI number?

Mary Elisabeth Benjamin, MD's National Provider Identifier (NPI) is 1801066824, issued on Mar 5, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Mary Elisabeth Benjamin, MD located?

The NPPES record lists a practice address at 12162 Tech RD, Silver Spring, MD, 20904. Phone: (301) 681-6654. Providers update this record themselves, so call before visiting.

How can I verify Mary Elisabeth Benjamin, MD's license?

NPPES lists Maryland license number D0048252, 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 Mary Elisabeth Benjamin, MD prescribe under Medicare Part D?

In 2024, Mary Elisabeth Benjamin, MD had 2,008 Medicare Part D claims for 300 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.