NPPES file of Aug 9, 2026

Mark Samuel Epstein, PHARMD

Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Washington, DC

Mark Samuel Epstein, PHARMD is a pharmacist clinician (phc)/ clinical pharmacy specialist with a practice address in Washington, District of Columbia, and NPI 1245561703, issued on Jan 22, 2010. Check the license (District of Columbia PH100001973, as entered in NPPES) with the District of Columbia board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1245561703
Name
Mark Samuel Epstein
Credential
PHARMD
Primary taxonomy
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist 1835P0018X
License numbers
PH100001973 DC
62919 CA
19222 MD
0202214060 VA
Self-reported in NPPES; status is on the state search
Practice location
2301 M St NW, Washington, DC 20037
Phone
(202) 419-6367
Enumerated
Jan 22, 2010
Record last updated
Jun 14, 2016 (not updated in 10 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2301 M St NW

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

  1. Avani Arora, PHARMDPharmacist1679814438
  2. Anne Baldwin, MDPediatrics Physician1982772315
  3. Cassandra Batichon, MDAdult Medicine Physician1962865352
  4. Shuo Chen, M.D.Student in an Organized Health Care Education/Training Program1114260312
  5. Kimberly Colden Massey, MDObstetrics & Gynecology Physician1174682728
  6. Amar Dave, M.D.Internal Medicine Physician1811239122

Verify Mark Samuel Epstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich District of Columbia board licenses this profession
    Search for license PH100001973    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
Find the District of Columbia 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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Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist providers in District of Columbia

There are 54 pharmacist clinician (phc)/ clinical pharmacy specialist records in District of Columbia. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 54 in District of Columbia → Every provider in Washington →

Other pharmacist clinician (phc)/ clinical pharmacy specialist records in District of Columbia

  1. Chantal Accolatse-Mati, PHARMDWashington, DC1063357192
  2. Afua Addo-Abedi, PHARMD, MBA, BCPSWashington, DC1790085603
  3. Nadia Ahmad, PHARMACISTWashington, DC1285510743
  4. Misganaw Alemu, PHARM.D.Washington, DC1871733485
  5. Samuel Appiah, PHARMDWashington, DC1053767152
  6. Patricia Ayuk, PHARM DWashington, DC1245678150
  7. Vivian AyukWashington, DC1356820971
  8. Monique Bonhomme, MS, PHARMDWashington, DC1851691547
  9. Wendy Brown, PHARM.D.Washington, DC1235380734
  10. Samantha Choy, PHARMDWashington, DC1629463419

Common questions

What is Mark Samuel Epstein, PHARMD's NPI number?

Mark Samuel Epstein, PHARMD's National Provider Identifier (NPI) is 1245561703, issued on Jan 22, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Mark Samuel Epstein, PHARMD located?

The NPPES record lists a practice address at 2301 M St NW, Washington, DC, 20037. Phone: (202) 419-6367. Providers update this record themselves, so call before visiting.

How can I verify Mark Samuel Epstein, PHARMD's license?

NPPES lists District of Columbia license number PH100001973, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.