NPPES file of Aug 9, 2026

Gregory Allan Gilson, D.O.

Orthopaedic Surgery Physician · Allentown, PA

Gregory Allan Gilson, D.O. is an orthopaedic surgery physician with a practice address in Allentown, Pennsylvania, and NPI 1922468461, issued on Feb 25, 2016. Check the license (Pennsylvania OS022155, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922468461
Name
Gregory Allan Gilson
Credential
D.O.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
OS022155 PA
Self-reported in NPPES; status is on the state search
Practice location
501 Cetronia RD Ste 125, Allentown, PA 18104
Phone
(484) 526-1735
Enumerated
Feb 25, 2016
Record last updated
Dec 14, 2023
Medicare enrollment
Enrolled (PECOS I20221008000084); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 2016
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 501 Cetronia RD Ste 125

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

  1. Krupali ChokshiPain Medicine (Physical Medicine & Rehabilitation) Physician1124589569
  2. Justin Fatula, PA-CPhysician Assistant1790853828
  3. Emma Fink, PA-CPhysician Assistant1699497693
  4. Cassandra Genovese, PA-CPhysician Assistant1427830009
  5. Alexa Lamack, PA-CPhysician Assistant1942924592
  6. Jordan MisterPhysician Assistant1417679028

Verify Gregory Allan Gilson 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 OS022155
    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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57% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

150 Medicare Part D claims for 75 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 47 claims were for opioids.

  1. Gregory Gilson150
  2. Specialty average346

Most prescribed

  1. Oxycodone Hcl39 claims
  2. Celecoxib25 claims
  3. Gabapentin19 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.

The MIPS final score for 2023 (Medicare payment program): 95.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $6,566.03

11 payments; by number, the most common kind was food and beverage; the largest payer was Medical Device Business Services, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Gilson$6,566
  2. Specialty average$23,023

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Phoenix Rehabilitation And Health Services IncCranberry Township, PA
  2. St Lukes Physician Group IncQuakertown, PA

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

Gregory Allan Gilson among 1,253 orthopaedic surgery physician records in Pennsylvania

Gregory Allan Gilson, D.O. is one of 1,253 orthopaedic surgery physician records with a practice address in Pennsylvania. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.

  • NPI issued2016 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2016 · median 2003 among the 777 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 207X00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Pennsylvania

There are 1,253 orthopaedic surgery physician records in Pennsylvania.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Jennifer Banzhof, D.O.Allentown, PA 181041699930776
  2. Thomas Dickson, MDAllentown, PA 181041538151832
  3. Stephen Falatyn, MDAllentown, PA 181041184689655
  4. Daniel Farber, MDAllentown, PA 181041477557346
  5. Omar Fareedi, DOAllentown, PA 181041275053845
  6. Amir Fayyazi, MDAllentown, PA 181041669476081
  7. Hunter Hayes, DOAllentown, PA 181041861959322
  8. Jay Kalawadia, M.D.Allentown, PA 181041417186156

Common questions

What is Gregory Allan Gilson, D.O.'s NPI number?

Gregory Allan Gilson, D.O.'s National Provider Identifier (NPI) is 1922468461, issued on Feb 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Allan Gilson, D.O. located?

The NPPES record lists a practice address at 501 Cetronia RD Ste 125, Allentown, PA, 18104. Phone: (484) 526-1735. Providers update this record themselves, so call before visiting.

How can I verify Gregory Allan Gilson, D.O.'s license?

NPPES lists Pennsylvania license number OS022155, 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 Gregory Allan Gilson, D.O. prescribe under Medicare Part D?

In 2024, Gregory Allan Gilson, D.O. had 150 Medicare Part D claims for 75 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

What is Gregory Allan Gilson, D.O.'s MIPS final score?

The 2023 MIPS final score is 95.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.