Mark Philip Epstein, M.D.
Specialist · Concord, MA
Mark Philip Epstein, M.D. is a specialist with a practice address in Concord, Massachusetts, and NPI 1891760005, issued on Feb 21, 2006. Check the license (Massachusetts 157680, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Philip Epstein
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 157680 MA
Self-reported in NPPES; status is on the state search - Practice location
- 131 Ornac, Concord, MA 01742
- Phone
- (978) 371-1551
- Enumerated
- Feb 21, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (978) 371-1518
- Medicaid ID
- 0129640 MA
- Medicare enrollment
- Enrolled (PECOS I20040813000525); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,096 in Massachusetts → Look up another NPI →
Also registered at 131 Ornac
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Elizabeth Conway, NPFamily Nurse Practitioner1689643231
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- Virginia Croke, NPAdult Health Nurse Practitioner1851360580
Verify Mark Philip Epstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 157680Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average specialist in 2024
537 Medicare Part D claims for 254 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Ondansetron Hcl118 claims
- Omeprazole100 claims
- Sutab48 claims
- Famotidine43 claims
- Sucralfate38 claims
- Cholestyramine28 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: $1,631.44
77 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Bills Medicare through one group practice
- Middlesex Gastroenterolgy PCActon, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Philip Epstein among 1,096 specialist records in Massachusetts
Mark Philip Epstein, M.D. is one of 1,096 specialist records with a practice address in Massachusetts. 15% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 69% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileYes · 12% of these records are
- Graduated1988 · median 1989 among the 128 with a school on file
- Record last updated2007 · 82% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Massachusetts
There are 1,096 specialist records in Massachusetts.
All 1,096 in Massachusetts → Every provider in Concord → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- James Andreson, MDConcord, MA 017421407867849
- Twila Broadway, LMFTConcord, MA 017421174775746
- Robert Cantu, M.D.Concord, MA 017421316914625
- Stephen Smith, M.D.Concord, MA 017421134120397
- Mary Denker, PTHolliston, MA 017461124183900
- Mark Tlumacki, O.P.Holliston, MA 017461629095070
- William Tosches, MDHopedale, MA 017471841390952
- Tracy Colby, OTR/LHudson, MA 017491033526371
Common questions
What is Mark Philip Epstein, M.D.'s NPI number?
Mark Philip Epstein, M.D.'s National Provider Identifier (NPI) is 1891760005, issued on Feb 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Philip Epstein, M.D. located?
The NPPES record lists a practice address at 131 Ornac, Concord, MA, 01742. Phone: (978) 371-1551. Providers update this record themselves, so call before visiting.
How can I verify Mark Philip Epstein, M.D.'s license?
NPPES lists Massachusetts license number 157680, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Philip Epstein, M.D. prescribe under Medicare Part D?
In 2024, Mark Philip Epstein, M.D. had 537 Medicare Part D claims for 254 beneficiaries; the average among specialist prescribers was 1,380. 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.