NPPES file of Aug 9, 2026

Holly Ellen Stewart, MD

Psychiatry Physician · Pittsburgh, PA

Holly Ellen Stewart, MD is a psychiatry physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1164453056, issued on Jul 6, 2006. Check the license (Pennsylvania MD425191, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1164453056
Name
Holly Ellen Stewart
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
MD425191 PA
C55227 CA
Self-reported in NPPES; status is on the state search
Practice location
412 E Commons, Pittsburgh, PA 15212
Phone
(412) 323-4500
Enumerated
Jul 6, 2006
Record last updated
Mar 24, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20060804000114); accepts Medicare assignment
Medical or professional school
University Of Pittsburgh School Of Medicine, 2002
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.
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Also registered at 412 E Commons

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

  1. Carolyn Amspaugh, LCSWClinical Social Worker1851611891
  2. Heather Beachler, NCC, CT, LPCProfessional Counselor1548759657
  3. Anna Boettcher, M.D.Psychiatry Physician1720058761
  4. Paul Colaiaco, MDPsychiatry Physician1033108402
  5. Joanne Connelly, CRNPPsychiatric/Mental Health Nurse Practitioner1336341817
  6. Carol Frazer, LPCProfessional Counselor1992786891

Verify Holly Ellen Stewart 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 MD425191
    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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2.4 times the Medicare Part D claims of the average psychiatry physician in 2024

2,362 Medicare Part D claims for 267 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Holly Stewart2,362
  2. Specialty average1,000

Most prescribed

  1. Clonazepam124 claims
  2. Aripiprazole100 claims
  3. Clozapine99 claims
  4. Olanzapine99 claims
  5. Trazodone Hcl89 claims
  6. Quetiapine Fumarate88 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.

Bills Medicare through one group practice

  1. Mercy Life Center CorporationPittsburgh, PA

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

324 psychiatry physician records list a practice address in Pittsburgh

They are 324 of the 28,866 NPPES records with a practice address in Pittsburgh, and 2,662 psychiatry physician records in Pennsylvania.

Other psychiatry physician records in Pennsylvania

  1. Raja Abbas, M.D.Lehighton, PA1306057294
  2. Saleha Abbas, M.D.Upland, PA1144283052
  3. David Abel, MDDoylestown, PA1881637163
  4. Rolf Abel, MDWilkes Barre, PA1427048917
  5. Kian AbolhodaPhiladelphia, PA1013844885
  6. Dara Abraham, D.OPhiladelphia, PA1316109549
  7. George Abraham, PCLafayette Hill, PA1679552368
  8. John Abulu, MBBS, MDPhiladelphia, PA1700052172
  9. Thalia Acosta, MDPittsburgh, PA1790909224
  10. Marilyn Adam, M.D.York, PA1548698103

Common questions

What is Holly Ellen Stewart, MD's NPI number?

Holly Ellen Stewart, MD's National Provider Identifier (NPI) is 1164453056, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Holly Ellen Stewart, MD located?

The NPPES record lists a practice address at 412 E Commons, Pittsburgh, PA, 15212. Phone: (412) 323-4500. Providers update this record themselves, so call before visiting.

How can I verify Holly Ellen Stewart, MD's license?

NPPES lists Pennsylvania license number MD425191, 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.

How much does Holly Ellen Stewart, MD prescribe under Medicare Part D?

In 2024, Holly Ellen Stewart, MD had 2,362 Medicare Part D claims for 267 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.