NPPES file of Aug 9, 2026

Erin Marie McMaster, M.D.

Pediatrics Physician · Worcester, MA

Erin Marie McMaster, M.D. is a pediatrics physician with a practice address in Worcester, Massachusetts, and NPI 1700871845, issued on Sep 14, 2005. Check the license (Massachusetts 158275, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1700871845
Name
Erin Marie McMaster
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License number
158275 MA
Self-reported in NPPES; status is on the state search
Practice location
55 Lake Ave N, Worcester, MA 01655
Phone
(508) 856-5545
Enumerated
Sep 14, 2005
Record last updated
Nov 16, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(508) 856-1042
Medicaid ID
110000365A MA
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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8 nearest pediatrics physician records → All 2,628 in Massachusetts → Look up another NPI →

Also registered at 55 Lake Ave N

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

  1. Nawal Aamir, MDInternal Medicine Physician1588248926
  2. Amarys Abadie, CRNACertified Registered Nurse Anesthetist1992936843
  3. Paula Abate, NPNurse Practitioner1336265909
  4. Aly AbayazeedDiagnostic Radiology Physician1821221946
  5. Zainab AbbasDermatology Physician1609028000
  6. Mary-Alice Abbott, MDClinical Genetics (M.D.) Physician1982799417

Verify Erin Marie McMaster in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 158275    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 Massachusetts license search

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Erin Marie McMaster among 2,628 pediatrics physician records in Massachusetts

Erin Marie McMaster, M.D. is one of 2,628 pediatrics physician records with a practice address in Massachusetts. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 84% newer
  • In a Medicare fileNo · 25% of these records are
  • In the CMS Doctors and Clinicians fileNo · 12% of these records are
  • Record last updated2020 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatrics Physician providers in Massachusetts

There are 2,628 pediatrics physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,628 in Massachusetts → Every provider in Worcester → Pediatrics Physician nationwide →

The 8 pediatrics physician records with the nearest ZIP codes

  1. Angela Beeler, M.D.Worcester, MA 016551376526293
  2. Heather Forkey, M.D.Worcester, MA 016551942291208
  3. Timothy Gibson, M.D.Worcester, MA 016551336120062
  4. Thomas Guggina, M.D.Worcester, MA 016551669454708
  5. Maureen KruskalWorcester, MA 016551619915279
  6. Mary Lee, M.D.Worcester, MA 016551225011349
  7. Peter Murphy, M.D.Worcester, MA 016551689657793
  8. Beverly Nazarian, M.D.Worcester, MA 016551679557706

Common questions

What is Erin Marie McMaster, M.D.'s NPI number?

Erin Marie McMaster, M.D.'s National Provider Identifier (NPI) is 1700871845, issued on Sep 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Erin Marie McMaster, M.D. located?

The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (508) 856-5545. Providers update this record themselves, so call before visiting.

How can I verify Erin Marie McMaster, M.D.'s license?

NPPES lists Massachusetts license number 158275, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.