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

MR. WILLIAM MONROE RIVERS CRNP
NPI 1255922332
Family Medicine in Philadelphia, PA

Active since February 01, 2021PECOS Enrolled
1650 MARKET ST STE 3600, PHILADELPHIA, PA 19103(855) 212-2273(629) 240-6003 Get Directions Write a Review

NPPES record last updated: October 22, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Apr 22, 2021, Feb 1, 2021 (2 updates tracked since 2021).

About Mr. William Monroe Rivers Crnp NPPES

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

MR. WILLIAM MONROE RIVERS CRNP (NPI 1255922332) is an individual family medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (SP023158) and active in the NPI registry since February 2021. He is enrolled in Medicare PECOS and maintains a secondary practice location in Pittsburgh.

NPPES Registry Identity

NPI1255922332
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameMR. WILLIAM MONROE RIVERSCredential: CRNP
Location Address1650 MARKET ST STE 3600Philadelphia, PA 19103-7334
Mailing Address5410 Maryland Way Ste 400Brentwood, TN 37027-8087 · (855) 212-2273
Fax(629) 240-6003
Sole ProprietorNo
Enumeration DateFebruary 1, 2021
Last NPPES UpdateOctober 22, 20262 updates tracked since enumeration
NPPES CertifiedOctober 22, 2026
✔ NPI 1255922332 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 · SP023158
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.
1650 MARKET ST STE 3600, Philadelphia, PA 19103

Secondary Practice Location 1

Location 13601 5th Ave Bldg 7thPittsburgh, PA 15213-3403 · Phone (412) 647-7228 · Fax (412) 648-6399

Other Identifiers 1

Medicaid104001840-0003PA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. William Monroe Rivers Crnp 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.

Medicare Billing Reassignments

5

Medicare enrollment records show William Rivers reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Nurse Practitioner
600 CLEMENTS BRIDGE RD
Barrington, NJ 08007
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 68 clinicians in this Medicare group
Surgery
8403 COLESVILLE RD STE 1100
Silver Spring, MD 20910
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 147 clinicians in this Medicare group
Internal Medicine
3436 WILLIAM PENN HWY, SUITE 166
Pittsburgh, PA 15235
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 7,114 clinicians in this Medicare group
Internal Medicine
1001 LIBERTY AVE STE 5
Pittsburgh, PA 15222
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 66 clinicians in this Medicare group
Nephrology
5410 MARYLAND WAY STE 400
Brentwood, TN 37027
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 99 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19103 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
$92.69 typical visit price
range $59.88 – $180.99
Typical copayment $23.17 (range $14.97 – $45.24)
Most-billed visit code 99203
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
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.

Other Providers at the Same Location NPPES 20

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

Physician Assistant
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
In Home Supportive Care
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Counselor (Professional)
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Counselor (Professional)
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Family Medicine
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Nurse Practitioner (Acute Care)
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Early Intervention Provider Agency
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Counselor (Professional)
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103

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 William Rivers's NPI number?

The NPI number for William Rivers is 1255922332. It was assigned to this individual provider in the NPPES registry on February 1, 2021.

Where is William Rivers located?

William Rivers practices at 1650 Market St Ste 3600, Philadelphia, PA 19103. The listed phone number is (855) 212-2273.

What is William Rivers's specialty?

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

Is William Rivers enrolled in Medicare?

Yes. William Rivers is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for William Rivers's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Rivers reassigns Medicare benefits to 5 organizations: Wound Healing Solutions Pennsylvania And Delaware LLC (Barrington, NJ), Consonant Healing Medical Associates (Silver Spring, MD), University Of Pittsburgh Physicians (Pittsburgh, PA), Wellbe Senior Medical Group Of Pennsylvania PC (Pittsburgh, PA) and Monogram Health Professional Services PC (Brentwood, TN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Rivers's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William Rivers was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.