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DR. MARIELLE BRIDGET WILLIAMSON-REA DO
NPI 1700407566
Family Medicine in Wexford, PA

Active since May 04, 2020Opted out of Medicare · through Oct 15, 2027
78.53/100
CMS Quality Rating
11676 PERRY HWY STE 2105, WEXFORD, PA 15090(412) 871-6564(412) 665-9273 Get Directions Write a Review

NPPES record last updated: November 12, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Nov 12, 2025, May 4, 2020 (2 updates tracked since 2020).

About Dr. Marielle Bridget Williamson-rea Do NPPES

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

DR. MARIELLE BRIDGET WILLIAMSON-REA DO (NPI 1700407566) is an individual family medicine provider in Wexford, Pennsylvania, licensed in Pennsylvania (OS023051) and active in the NPI registry since May 2020. She has opted out of Medicare through October 15, 2027 and remains eligible to order and refer, is affiliated with Magee Womens Hospital Of Upmc Health System, and is a graduate of Lake Erie College Of Osteopathic Medicine, Erie (2020).

NPPES Registry Identity

NPI1700407566
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MARIELLE BRIDGET WILLIAMSON-REACredential: DO
Location Address11676 PERRY HWY STE 2105Wexford, PA 15090-7200
Mailing Address11676 Perry Hwy Ste 2105Wexford, PA 15090-7200 · (412) 871-6564 · Fax (412) 665-9273
Phone(412) 871-6564
Fax(412) 665-9273
Sole ProprietorNo
Medical School CMSLake Erie College Of Osteopathic Medicine, ErieGraduated 2020
Enumeration DateMay 4, 2020
Last NPPES UpdateNovember 12, 20252 updates tracked since enumeration
NPPES CertifiedNovember 12, 2025
✔ NPI 1700407566 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in PA · OS023051
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
11676 PERRY HWY STE 2105, Wexford, PA 15090
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Marielle Bridget Williamson-rea Do has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from October 15, 2025 through October 15, 2027.

Opt-Out Effective DateOctober 15, 2025
Opt-Out In Effect ThroughOctober 15, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
86 services64 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
35 services30 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
33 services33 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
23 services23 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Magee Womens Hospital Of Upmc Health System

Acute Care Hospitals · Pittsburgh, PA
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number390114
Location300 Halket StreetPittsburgh, PA 15213 · Allegheny County
Emergency services Birthing friendly

Upmc Presbyterian Shadyside

Acute Care Hospitals · Pittsburgh, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390164
Location200 Lothrop StreetPittsburgh, PA 15213 · Allegheny County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 15090 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.88 typical visit price
range $54.64 – $166.87
Typical copayment $21.22 (range $13.66 – $41.71)
Most-billed visit code 99203
Established Patient
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

78.53/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality74.61
Promoting Interoperability100
Improvement Activities40
Cost53.82

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.

RISBON'S COUNSELING SERVICES LLC
Counselor (Professional)
11676 PERRY HWY STE 2105
WEXFORD, PA 15090
Allegheny County (878) 283-2636
COLE RISBON LPC, NCC
Counselor (Professional)
11676 PERRY HWY STE 2105
WEXFORD, PA 15090
Allegheny County (878) 283-2636
REA DIRECT CARE PC
Family Medicine
11676 PERRY HWY STE 2105
WEXFORD, PA 15090
Allegheny County (412) 871-6564

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 Marielle Williamson-rea's NPI number?

The NPI number for Marielle Williamson-rea is 1700407566. It was assigned to this individual provider in the NPPES registry on May 4, 2020.

Where is Marielle Williamson-rea located?

Marielle Williamson-rea practices at 11676 Perry Hwy Ste 2105, Wexford, PA 15090. The listed phone number is (412) 871-6564.

What is Marielle Williamson-rea's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Marielle Williamson-rea enrolled in Medicare?

No. Marielle Williamson-rea has opted out of Medicare through October 15, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Is Marielle Williamson-rea affiliated with any hospitals?

According to CMS data, Marielle Williamson-rea is affiliated with Magee Womens Hospital Of Upmc Health System and Upmc Presbyterian Shadyside.

When was this NPI record last updated?

The NPPES record for Marielle Williamson-rea was last updated on November 12, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.