NPPES file of Aug 9, 2026

Marc I. Epstein, NP

Adult Health Nurse Practitioner · Baltimore, MD

Marc I. Epstein, NP is an adult health nurse practitioner with a practice address in Baltimore, Maryland, and NPI 1164710554, issued on Jul 19, 2011. Check the license (Maryland R170593, as entered in NPPES) with the Maryland board that licenses this profession; 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
1164710554
Name
Marc I. Epstein
Credential
NP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License numbers
R170593 MD
95014347 CA
95218901 CA
Self-reported in NPPES; status is on the state search
Practice location
1800 Orleans St, Baltimore, MD 21287
Phone
(410) 502-2037
Enumerated
Jul 19, 2011
Record last updated
Jun 1, 2023
Fax
(410) 955-0737
Medicare enrollment
Enrolled (PECOS I20211203000418); accepts Medicare assignment
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.
Download card Updates feed

Also registered at 1800 Orleans St

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

  1. Kara AbarcarEmergency Medicine Physician1285195123
  2. Catherine Abbot, CRNPStudent in an Organized Health Care Education/Training Program1942093810
  3. Ahamed Akmal Abdul Rahman Lebbe, MDStudent in an Organized Health Care Education/Training Program1255208427
  4. Arielle AbovichStudent in an Organized Health Care Education/Training Program1972122703
  5. Luis Acosta, MDStudent in an Organized Health Care Education/Training Program1922859537
  6. Nihmotallahi Adebayo, MDStudent in an Organized Health Care Education/Training Program1033058334

Verify Marc I. Epstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license R170593
    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 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

99% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

19 Medicare Part D claims for 11 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Marc Epstein19
  2. Specialty average1,280

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: $135.61

2 payments; by number, the most common kind was food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marc Epstein$135.61
  2. Specialty average$946.40

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

  1. Johns Hopkins UniversityBaltimore, MD

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

Marc I. Epstein among 902 adult health nurse practitioner records in Maryland

Marc I. Epstein, NP is one of 902 adult health nurse practitioner records with a practice address in Maryland. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 45% of them.

  • NPI issued2011 · 45% of these records are older, 51% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2011 · median 2014 among the 386 with a school on file
  • Record last updated2023 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Maryland

There are 902 adult health nurse practitioner records in Maryland.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Julie Baker, APRN MSNBaltimore, MD 212871043265085
  2. Lora Clawson, C.R.N.P.Baltimore, MD 212871376594408
  3. Shelly Conaway, CRNPBaltimore, MD 212871609911023
  4. Joanne Dintzis, CRNPBaltimore, MD 212871134257108
  5. Kristen Farling, CRNPBaltimore, MD 212871639215882
  6. Patricia Freeman, CANPBaltimore, MD 212871083622815
  7. Barbara Gottschalk, C.N.M., C.R.N.P.,Baltimore, MD 212871871674150
  8. Ersilia Healy, CRNPBaltimore, MD 212871992747877

Common questions

What is Marc I. Epstein, NP's NPI number?

Marc I. Epstein, NP's National Provider Identifier (NPI) is 1164710554, issued on Jul 19, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Marc I. Epstein, NP located?

The NPPES record lists a practice address at 1800 Orleans St, Baltimore, MD, 21287. Phone: (410) 502-2037. Providers update this record themselves, so call before visiting.

How can I verify Marc I. Epstein, NP's license?

NPPES lists Maryland license number R170593, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Marc I. Epstein, NP prescribe under Medicare Part D?

In 2024, Marc I. Epstein, NP had 19 Medicare Part D claims for 11 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.