NPPES file of Aug 9, 2026

Michael Marceau, MD

Psychiatry Physician · Williamsport, PA

Michael Marceau, MD is a psychiatry physician with a practice address in Williamsport, Pennsylvania, and NPI 1770545170, issued on Apr 3, 2006. Check the license (Pennsylvania MD041583E, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1770545170
Name
Michael Marceau
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
MD041583E PA
Self-reported in NPPES; status is on the state search
Practice location
1100 Grampian Blvd, Williamsport, PA 17701
Phone
(570) 320-7525
Enumerated
Apr 3, 2006
Record last updated
Feb 29, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(570) 320-7484
Medicaid ID
0015691220002 PA
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 psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →

Also registered at 1100 Grampian Blvd

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

  1. Karl Ahlswede, MDHospice and Palliative Medicine (Surgery) Physician1033198676
  2. Sandra Ahlswede, CRNPNurse Practitioner1871001669
  3. Alyssa Amato, LCSWSocial Worker1558817742
  4. Karla Anderson, MDVascular Surgery Physician1376500207
  5. Saul Arber, M.D.Radiation Oncology Physician1407800949
  6. Jane Atkinson, LCSWClinical Social Worker1962437640

Verify Michael Marceau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD041583E    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 Pennsylvania 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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Michael Marceau among 2,662 psychiatry physician records in Pennsylvania

Michael Marceau, MD is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 72% 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 61% newer
  • In a Medicare fileNo · 72% of these records are
  • In the CMS Doctors and Clinicians fileNo · 45% of these records are
  • Record last updated2016 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Pennsylvania

There are 2,662 psychiatry physician records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,662 in Pennsylvania → Every provider in Williamsport → Psychiatry Physician nationwide →

The 8 psychiatry physician records with the nearest ZIP codes

  1. Jeremy Bennett, M.D.Williamsport, PA 177011598908840
  2. Teresa Bianco, MDWilliamsport, PA 177011881655942
  3. Terri Calvert, MDWilliamsport, PA 177011205914249
  4. Sarah McLaughlin, DOWilliamsport, PA 177011780070029
  5. Christine Packard, D.O.Williamsport, PA 177011639197791
  6. Sagar Patel, M.D.Williamsport, PA 177011033652672
  7. Ronald Pope, D.O.Williamsport, PA 177011578528865
  8. Douglas Reed, M.D.Williamsport, PA 177011801830443

Common questions

What is Michael Marceau, MD's NPI number?

Michael Marceau, MD's National Provider Identifier (NPI) is 1770545170, issued on Apr 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Marceau, MD located?

The NPPES record lists a practice address at 1100 Grampian Blvd, Williamsport, PA, 17701. Phone: (570) 320-7525. Providers update this record themselves, so call before visiting.

How can I verify Michael Marceau, MD's license?

NPPES lists Pennsylvania license number MD041583E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.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.