Mark S. Okonski, MD
Gastroenterology Physician · Port Matilda, PA
Mark S. Okonski, MD is a gastroenterology physician with a practice address in Port Matilda, Pennsylvania, and NPI 1952393209, issued on Aug 22, 2005. Check the license (Pennsylvania MD488012, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mark S. Okonski
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- MD488012 PA
71344 TN
Self-reported in NPPES; status is on the state search - Practice location
- 132 Abigail LN, Port Matilda, PA 16870
- Phone
- (814) 272-5011
- Enumerated
- Aug 22, 2005
- Record last updated
- Nov 3, 2025
- Fax
- (814) 272-6531
- Medicaid ID
- 054473600 FL
- Medicare enrollment
- Enrolled (PECOS I20250214000733); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,049 in Pennsylvania → Look up another NPI →
Also registered at 132 Abigail LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Molham Abdulsamad, M.D.Gastroenterology Physician1174836712
- Thomas Amankonah, MDGastroenterology Physician1780762534
- Lynn Anderson, RDN, LDNRegistered Dietitian1588320386
- Mark Armstrong, M.D.Surgery Physician1013981711
- Samantha Backer, MSN, CRNP, FNP-CNurse Practitioner1992077184
- Ashlyn BarcheckPhysician Assistant1518755826
Verify Mark S. Okonski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD488012Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 91.1 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Geisinger ClinicPort Matilda, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark S. Okonski among 1,049 gastroenterology physician records in Pennsylvania
Mark S. Okonski, MD is one of 1,049 gastroenterology physician records with a practice address in Pennsylvania. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1985 · median 2003 among the 769 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 gastroenterology physician records list a practice address in Port Matilda
They are 8 of the 163 NPPES records with a practice address in Port Matilda, and 1,049 gastroenterology physician records in Pennsylvania.
All 1,049 in Pennsylvania → Every provider in Port Matilda → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Molham Abdulsamad, M.D.Port Matilda, PA 168701174836712
- Thomas Amankonah, MDPort Matilda, PA 168701780762534
- Brandon Craft, M.D.Port Matilda, PA 168701164500500
- Marten Duncan, D.O.Port Matilda, PA 168701215037312
- Irphan Gaslightwala, M.D.Port Matilda, PA 168701376572370
- Jeffrey Lichtenstein, M.D.Port Matilda, PA 168701598726598
- Ashley Nickerson, D.O.Port Matilda, PA 168701821450289
- Donald Schneider, M.D.Clearfield, PA 168301538126925
Common questions
What is Mark S. Okonski, MD's NPI number?
Mark S. Okonski, MD's National Provider Identifier (NPI) is 1952393209, issued on Aug 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark S. Okonski, MD located?
The NPPES record lists a practice address at 132 Abigail LN, Port Matilda, PA, 16870. Phone: (814) 272-5011. Providers update this record themselves, so call before visiting.
How can I verify Mark S. Okonski, MD's license?
NPPES lists Pennsylvania license number MD488012, 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.
What is Mark S. Okonski, MD's MIPS final score?
The 2023 MIPS final score is 91.1 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.