Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. STEPHEN WILLIAM POURNARAS III MD
NPI 1700319464
Orthopaedic Surgery - Sports Medicine in Prince Frederick, MD

Q: What is Stephen Pournaras's NPI number?

The NPI number for Stephen Pournaras is 1700319464. It was assigned to this individual provider in the NPPES registry on April 9, 2017.

Q: What is Stephen Pournaras's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Pournaras was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 09, 2017PECOS Enrolled

110 HOSPITAL RD STE 201, PRINCE FREDERICK, MD 20678(410) 535-1343 Get Directions Write a Review

NPPES record last updated: July 29, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 29, 2026, Jul 6, 2018 (2 updates tracked since 2018).

On this page

About Dr. Stephen William Pournaras Iii Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. STEPHEN WILLIAM POURNARAS III MD (NPI 1700319464) is an individual sports medicine provider in Prince Frederick, Maryland, licensed in Maryland (D0107745) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1700319464

Entity TypeIndividualMale

Primary Taxonomy207XX0005X

Provider Legal NameDR. STEPHEN WILLIAM POURNARAS IIICredential: MD

Location Address110 HOSPITAL RD STE 201Prince Frederick, MD 20678-4045

Mailing Address110 Hospital Rd Ste 201Prince Frederick, MD 20678-4045 · (410) 535-1343

Phone(410) 535-1343

Sole ProprietorNo

Enumeration DateApril 9, 2017

Last NPPES UpdateJuly 29, 20262 updates tracked since enumeration

NPPES CertifiedJuly 29, 2026

✔ NPI 1700319464 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Sports MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207XX0005X

License✔ Licensed in MD · D0107745

Definition

An orthopaedic surgeon trained in sports medicine provides appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.

Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License D0107745 (MD)

110 HOSPITAL RD STE 201, Prince Frederick, MD 20678

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Stephen William Pournaras Iii Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

THE TRAINING ROOM INC

Durable Medical Equipment & Medical Supplies

110 HOSPITAL RD STE 201
PRINCE FREDERICK, MD 20678

Calvert County (800) 500-1878

SYDNEY LYNN MARINELLI PA-C

Physician Assistant

110 HOSPITAL RD STE 201
PRINCE FREDERICK, MD 20678

Calvert County (410) 535-1343

CENTERS FOR ADVANCED ORTHOPAEDICS, LLC

Orthopaedic Surgery

110 HOSPITAL RD STE 201
PRINCE FREDERICK, MD 20678

Calvert County (410) 535-1343

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Pournaras's NPI number?

The NPI number for Stephen Pournaras is 1700319464. It was assigned to this individual provider in the NPPES registry on April 9, 2017.

Where is Stephen Pournaras located?

Stephen Pournaras practices at 110 Hospital Rd Ste 201, Prince Frederick, MD 20678. The listed phone number is (410) 535-1343.

What is Stephen Pournaras's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.

Is Stephen Pournaras enrolled in Medicare?

Yes. Stephen Pournaras is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Stephen Pournaras was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.