NPPES file of Aug 9, 2026

Miltiadis Holger Zgonis, MD

Orthopaedic Surgery Physician · Philadelphia, PA

Miltiadis Holger Zgonis, MD is an orthopaedic surgery physician with a practice address in Philadelphia, Pennsylvania, and NPI 1538229117, issued on Dec 12, 2006. Check the license (Pennsylvania MD437431, 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
1538229117
Name
Miltiadis Holger Zgonis
Credential
MD
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
MD437431 PA
Self-reported in NPPES; status is on the state search
Practice location
235 South 33RD Street, Philadelphia, PA 19104
Phone
(215) 615-4400
Enumerated
Dec 12, 2006
Record last updated
Jan 21, 2026
Medicare enrollment
Enrolled (PECOS I20130803000167); accepts Medicare assignment
Medical or professional school
Albany Medical College Of Union University, 2004
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 235 South 33RD Street

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

  1. Kyle Bowman, PA-CPhysician Assistant1174019012
  2. Kristopher Fayock, M.D.Family Medicine Physician1225205008

Verify Miltiadis Holger Zgonis 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 MD437431
    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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90% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

33 Medicare Part D claims for 24 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.

  1. Miltiadis Zgonis33
  2. Specialty average346

Most prescribed

  1. Diclofenac Sodium22 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 practice group's MIPS final score for 2023 (Medicare payment program): 85.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score73.6
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $47.73

2 payments; by number, the most common kind was food and beverage; the largest payer was Paladin Technology Solutions. 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. Miltiadis Zgonis$48
  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 one group practice

  1. University OF Penn - Medical GroupPhiladelphia, PA

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

Miltiadis Holger Zgonis among 1,253 orthopaedic surgery physician records in Pennsylvania

Miltiadis Holger Zgonis, MD 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 2006, is newer than 21% of them.

  • NPI issued2006 · 21% of these records are older, 48% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2004 · median 2003 among the 777 with a school on file
  • Record last updated2026 · 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. James Carey, MDPhiladelphia, PA 191041265460240
  2. Robert Carrigan, M.D.Philadelphia, PA 191041790725745
  3. Richard Davidson, M.D.Philadelphia, PA 191041104847789
  4. John Esterhai, MDPhiladelphia, PA 191041932137437
  5. David Glaser, MDPhiladelphia, PA 191041972531432
  6. Craig Israelite, MDPhiladelphia, PA 191041154359610
  7. Frederick Kaplan, MDPhiladelphia, PA 191041881622348
  8. Mary Ann Keenan, MDPhiladelphia, PA 191041508894064

Common questions

What is Miltiadis Holger Zgonis, MD's NPI number?

Miltiadis Holger Zgonis, MD's National Provider Identifier (NPI) is 1538229117, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Miltiadis Holger Zgonis, MD located?

The NPPES record lists a practice address at 235 South 33RD Street, Philadelphia, PA, 19104. Phone: (215) 615-4400. Providers update this record themselves, so call before visiting.

How can I verify Miltiadis Holger Zgonis, MD's license?

NPPES lists Pennsylvania license number MD437431, 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 Miltiadis Holger Zgonis, MD prescribe under Medicare Part D?

In 2024, Miltiadis Holger Zgonis, MD had 33 Medicare Part D claims for 24 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

What is Miltiadis Holger Zgonis, MD's MIPS final score?

The 2023 MIPS final score is 85.5 of 100, reported for the practice group. 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.