NPPES file of Aug 9, 2026

Luke Zigrossi, D.O.

Internal Medicine Physician · Butler, PA

Luke Zigrossi, D.O. is an internal medicine physician with a practice address in Butler, Pennsylvania, and NPI 1457633380, issued on Sep 16, 2011. Check the license (Pennsylvania OS016001, 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
1457633380
Name
Luke Zigrossi
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
OS016001 PA
Self-reported in NPPES; status is on the state search
Practice location
1 Hospital Way, Butler, PA 16001
Phone
(724) 283-6666
Enumerated
Sep 16, 2011
Record last updated
Mar 7, 2023
Medicare enrollment
Enrolled (PECOS I20140327001141); accepts Medicare assignment
Medical or professional school
Lake Erie College Of Osteopathic Medicine, Erie, 2010
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 1 Hospital Way

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

  1. Gabriel Armando, PA-CPhysician Assistant1114437142
  2. Bryan Artiles, CRNP, NP-CFamily Nurse Practitioner1558979203
  3. Trish Arvay, PA-CMedical Physician Assistant1396996500
  4. Andrew Begg, MDInternal Medicine Physician1952808750
  5. Michael BiggianiStudent in an Organized Health Care Education/Training Program1306637426
  6. Madison Bigley, PA-CMedical Physician Assistant1124735709

Verify Luke Zigrossi 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 OS016001
    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

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92% fewer Medicare Part D claims than the average internal medicine physician in 2024

257 Medicare Part D claims for 59 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Luke Zigrossi257
  2. Specialty average3,176

Most prescribed

  1. Naltrexone Hcl30 claims
  2. Trazodone Hcl25 claims
  3. Gabapentin19 claims
  4. Hydroxyzine Pamoate14 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. Butler Medical ProvidersButler, PA

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

Luke Zigrossi among 7,300 internal medicine physician records in Pennsylvania

Luke Zigrossi, D.O. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% 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 52% of them.

  • NPI issued2011 · 52% of these records are older, 45% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2010 · median 2008 among the 4,208 with a school on file
  • Record last updated2023 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

43 internal medicine physician records list a practice address in Butler

They are 43 of the 1,139 NPPES records with a practice address in Butler, and 7,300 internal medicine physician records in Pennsylvania.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Weien Agate, M.D.Butler, PA 160011982670691
  2. Fozia Chatta, M.D.Butler, PA 160011659309953
  3. Dennis Demby, M.D.Butler, PA 160011780612523
  4. Padmarao Jevaji, MD, MMPHButler, PA 160011609807296
  5. Lillian Jordan, MDButler, PA 160011235154295
  6. James Mathews, DOButler, PA 160011477523140
  7. Varsha Mehta, M.D.Butler, PA 160011760413108
  8. John Reefer, M.D.Butler, PA 160011093743304

Common questions

What is Luke Zigrossi, D.O.'s NPI number?

Luke Zigrossi, D.O.'s National Provider Identifier (NPI) is 1457633380, issued on Sep 16, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Luke Zigrossi, D.O. located?

The NPPES record lists a practice address at 1 Hospital Way, Butler, PA, 16001. Phone: (724) 283-6666. Providers update this record themselves, so call before visiting.

How can I verify Luke Zigrossi, D.O.'s license?

NPPES lists Pennsylvania license number OS016001, 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 Luke Zigrossi, D.O. prescribe under Medicare Part D?

In 2024, Luke Zigrossi, D.O. had 257 Medicare Part D claims for 59 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.