Marielle Bridget Williamson-Rea, DO

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

OS023051 Issued in PA

Practice address

11676 Perry Hwy Ste 2105
Wexford, PA 15090-7200

Phone

(412) 871-6564

Fax

(412) 665-9273

NPI assigned

May 4, 2020

Last updated

Nov 12, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Opted out of Medicare

Yes, effective Oct 15, 2025 through Oct 15, 2027

Specialty

Family Practice

Education

Lake Erie College of Osteopathic Medicine, Erie, 2020

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• Magee Womens Hospital of Upmc Health System Hospital, Pittsburgh, PA, CCN 390114
• Upmc Presbyterian Shadyside Hospital, Pittsburgh, PA, CCN 390164

Merit-based Incentive Payment System (MIPS)

Final score

83.75 of 100Reported as group

Quality

70.53

Promoting interoperability

100

Improvement activities

40

Cost

75.31

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: marielle.williamsonrea@upmcdirect.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Rea Direct Care PC

  • Family Medicine Physician
  • Wexford, PA
  • NPI 1942156914
  NPD Authorized official

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Upmc Magee-Womens Hospital

  • Ambulatory Surgical Clinic/Center
  • Pittsburgh, PA
  • NPI 1659435501

  Hospital

  Care Compare affiliation
• Upmc Magee-Womens Hospital

  • General Acute Care Hospital
  • Pittsburgh, PA
  • NPI 1952311508
  Care Compare affiliation
• Upmc Presbyterian Shadyside

  • Ambulatory Surgical Clinic/Center
  • Pittsburgh, PA
  • NPI 1144384082

  Hospital

  Care Compare affiliation
• Upmc Presbyterian Shadyside

  • Methadone Clinic
  • Pittsburgh, PA
  • NPI 1518089200

  Hospital

  Care Compare affiliation
• Upmc Presbyterian Shadyside

  • Psychiatric Hospital Unit
  • Pittsburgh, PA
  • NPI 1750390134
  Care Compare affiliation
• Upmc Presbyterian Shadyside

  • General Acute Care Hospital
  • Pittsburgh, PA
  • NPI 1821007881
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1588550400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762905600000",
    "number": "1700407566",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11676 PERRY HWY STE 2105",
            "city": "WEXFORD",
            "state": "PA",
            "postal_code": "150907200",
            "telephone_number": "412-871-6564",
            "fax_number": "412-665-9273"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "11676 PERRY HWY STE 2105",
            "city": "WEXFORD",
            "state": "PA",
            "postal_code": "150907200",
            "telephone_number": "412-871-6564",
            "fax_number": "412-665-9273"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMSON-REA",
        "first_name": "MARIELLE",
        "middle_name": "BRIDGET",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-05-04",
        "last_updated": "2025-11-12",
        "certification_date": "2025-11-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "PA",
            "license": "OS023051",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amy Marie Whitmoyer, PTA
• Andrea Wicker, DPT
• Sarah Elizabeth Wigg, PT
• Rachel Wile
• Abigail Wilhelmi
• Willowbear Counseling LLC
• Paige Wilson, OTD, OTR/L
• Sherry C Windisch, M.A.
• Meredith Lynn Wisser, PA-C
• Miranda Witas, MSED, LPC, NCC

• Family Medicine Physician in Wexford, PA
• Providers in Wexford, PA by specialty
• Family Medicine Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 12, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring; Opt Out Affidavits.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.