NPPES file of Aug 9, 2026

Stephen William Pournaras, MD

Sports Medicine (Orthopaedic Surgery) Physician · Prince Frederick, MD

Stephen William Pournaras, MD is a sports medicine (orthopaedic surgery) physician with a practice address in Prince Frederick, Maryland, and NPI 1700319464, issued on Apr 9, 2017. Check the license (Maryland D0107745, as entered in NPPES) on the Maryland Board of Physicians; 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
1700319464
Name
Stephen William Pournaras
Credential
MD
Primary taxonomy
Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X
License number
D0107745 MD
Self-reported in NPPES; status is on the state search
Practice location
110 Hospital RD Ste 201, Prince Frederick, MD 20678
Phone
(410) 535-1343
Enumerated
Apr 9, 2017
Record last updated
Jul 29, 2026
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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Also registered at 110 Hospital RD Ste 201

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

  1. Sydney Marinelli, PA-CPhysician Assistant1285583427

Verify Stephen William Pournaras in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0107745
    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 Maryland 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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Industry payments in 2024: $172.76

1 payment: food and beverage; the largest payer was Stryker Corporation. The 2,400 providers of this specialty with any payment received $19,779.31 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Pournaras$173
  2. Specialty average$19,779

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

Stephen William Pournaras among 67 sports medicine (orthopaedic surgery) physician records in Maryland

Stephen William Pournaras, MD is one of 67 sports medicine (orthopaedic surgery) physician records with a practice address in Maryland. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 90% of them.

  • NPI issued2017 · 90% of these records are older, 9% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileNo · 82% of these records are
  • Record last updated2026 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0005X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sports Medicine (Orthopaedic Surgery) Physician providers in Maryland

There are 67 sports medicine (orthopaedic surgery) physician records in Maryland.

The 8 sports medicine (orthopaedic surgery) physician records with the nearest ZIP codes

  1. Heather York, DVMAnnapolis Junction, MD 207011104180249
  2. Darlene Jean-Pierre, M.D.Lanham, MD 207061659677896
  3. Matthew Thompson, MDLaurel, MD 207071902042013
  4. Vestinia Bridges, M.D.Clinton, MD 207351609808773
  5. Steven Bernstein, M.D.Chevy Chase, MD 208151023033537
  6. John Klimkiewicz, MDChevy Chase, MD 208151346249505
  7. Daniel Pereles, M.D.Chevy Chase, MD 208151528029691
  8. Jonas Rudzki, M.D.Chevy Chase, MD 208151790890895

Common questions

What is Stephen William Pournaras, MD's NPI number?

Stephen William Pournaras, MD's National Provider Identifier (NPI) is 1700319464, issued on Apr 9, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Stephen William Pournaras, MD located?

The NPPES record lists a practice address at 110 Hospital RD Ste 201, Prince Frederick, MD, 20678. Phone: (410) 535-1343. Providers update this record themselves, so call before visiting.

How can I verify Stephen William Pournaras, MD's license?

NPPES lists Maryland license number D0107745, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. 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. 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.