Marielle Bridget Williamson-Rea, DO
Family Medicine Physician · Wexford, PA
Marielle Bridget Williamson-Rea, DO is a family medicine physician with a practice address in Wexford, Pennsylvania, and NPI 1700407566, issued on May 4, 2020. Check the license (Pennsylvania OS023051, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Marielle Bridget Williamson-Rea
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS023051 PA
Self-reported in NPPES; status is on the state search - Practice location
- 11676 Perry Hwy Ste 2105, Wexford, PA 15090
- Phone
- (412) 871-6564
- Enumerated
- May 4, 2020
- Record last updated
- Nov 12, 2025
- Fax
- (412) 665-9273
- Medicare enrollment
- Enrolled (PECOS I20231127002003); may accept Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2020
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 11676 Perry Hwy Ste 2105
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cole Risbon, LPC, NCCProfessional Counselor1700543667
Verify Marielle Bridget Williamson-Rea in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS023051Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average family medicine physician in 2024
2,011 Medicare Part D claims for 350 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 58 claims were for opioids.
Most prescribed
- Atorvastatin Calcium122 claims
- Amlodipine Besylate84 claims
- Levothyroxine Sodium82 claims
- Metformin Hcl73 claims
- Lisinopril72 claims
- Omeprazole66 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): 78.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $15.43
1 payment: food and beverage; the largest payer was Exact Sciences Corporation. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Marielle Bridget Williamson-Rea among 7,483 family medicine physician records in Pennsylvania
Marielle Bridget Williamson-Rea, DO is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 83% of them.
- NPI issued2020 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2020 · median 2005 among the 4,529 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 family medicine physician records list a practice address in Wexford
They are 25 of the 1,563 NPPES records with a practice address in Wexford, and 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Every provider in Wexford → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kristina Azar, D.O.Wexford, PA 150901639195043
- Stephen Baker, M.D.Wexford, PA 150901992716187
- John Behm, M.D.Wexford, PA 150901437151677
- Desiree Butter, M.D.Wexford, PA 150901780646539
- Thomas Carmen, MDWexford, PA 150901710042619
- Sandra Cromo, MDWexford, PA 150901992793236
- Susan Federoff, MDWexford, PA 150901083683213
- Robert Horodnic, DOWexford, PA 150901922014117
Common questions
What is Marielle Bridget Williamson-Rea, DO's NPI number?
Marielle Bridget Williamson-Rea, DO's National Provider Identifier (NPI) is 1700407566, issued on May 4, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Marielle Bridget Williamson-Rea, DO located?
The NPPES record lists a practice address at 11676 Perry Hwy Ste 2105, Wexford, PA, 15090. Phone: (412) 871-6564. Providers update this record themselves, so call before visiting.
How can I verify Marielle Bridget Williamson-Rea, DO's license?
NPPES lists Pennsylvania license number OS023051, 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 Marielle Bridget Williamson-Rea, DO prescribe under Medicare Part D?
In 2024, Marielle Bridget Williamson-Rea, DO had 2,011 Medicare Part D claims for 350 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Marielle Bridget Williamson-Rea, DO's MIPS final score?
The 2023 MIPS final score is 78.5 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.