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WILLIAM D WALLACE DO
NPI 1104387398
Internal Medicine - Critical Care Medicine in Monroeville, PA

Active since March 29, 2019PECOS Enrolled
3824 NORTHERN PIKE STE 820, MONROEVILLE, PA 15146(412) 457-0424 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 6, 2026, Jul 16, 2026, Apr 28, 2022 (3 updates tracked since 2022).

About William D Wallace Do NPPES

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

WILLIAM D WALLACE DO (NPI 1104387398) is an individual critical care medicine provider in Monroeville, Pennsylvania, licensed in Pennsylvania (OS026321) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and maintains a secondary practice location in Cleveland.

NPPES Registry Identity

NPI1104387398
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameWILLIAM D WALLACECredential: DO
Location Address3824 NORTHERN PIKE STE 820Monroeville, PA 15146-2141
Mailing Address2 Allegheny Ctr Ste 530Pittsburgh, PA 15212-5404
Phone(412) 457-0424
Sole ProprietorNo
Enumeration DateMarch 29, 2019
Last NPPES UpdateAugust 6, 20263 updates tracked since enumeration
NPPES CertifiedAugust 6, 2026
✔ NPI 1104387398 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
Licenses✔ Licensed in PA · OS026321✔ Licensed in OH · 34.015784
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 34.015784 (OH)
3824 NORTHERN PIKE STE 820, Monroeville, PA 15146
Open in Google Maps ↗

Secondary Practice Location 1

Location 19500 Euclid Ave # Na-23Cleveland, OH 44195-0001 · Phone (216) 444-2200

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William D Wallace Do 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 Reassignment

Medicare enrollment records show William Wallace reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Allegheny Clinic
1.2 mi
Internal Medicine
4217 NORTHERN PIKE
Monroeville, PA 15146
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 2,881 clinicians in this Medicare group
NPI 1134555121 (412) 372-9100

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 15146 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
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
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.

Other Providers at the Same Location NPPES 6

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

DR. TERRENCE OBRINGER DO
Internal Medicine (Pulmonary Disease)
3824 NORTHERN PIKE STE 820
MONROEVILLE, PA 15146
Allegheny County (412) 457-0424
DR. ANIL S MENON MD
Internal Medicine (Pulmonary Disease)
3824 NORTHERN PIKE STE 820
MONROEVILLE, PA 15146
Allegheny County (412) 457-0424
LESLIE ANN RICHARDS CRNP
Nurse Practitioner (Family)
3824 NORTHERN PIKE STE 820
MONROEVILLE, PA 15146
Allegheny County (412) 457-0424
DR. GIATH SHARI MD
Internal Medicine (Critical Care Medicine)
3824 NORTHERN PIKE STE 820
MONROEVILLE, PA 15146
Allegheny County (412) 457-0424
DR. AMIT GOULATIA MD
Internal Medicine (Pulmonary Disease)
3824 NORTHERN PIKE STE 820
MONROEVILLE, PA 15146
Allegheny County (412) 457-0424
CATHERINE TARANTINE MD
Internal Medicine (Pulmonary Disease)
3824 NORTHERN PIKE STE 820
MONROEVILLE, PA 15146
Allegheny County (412) 457-0424

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 Wallace's NPI number?

The NPI number for William Wallace is 1104387398. It was assigned to this individual provider in the NPPES registry on March 29, 2019.

Where is William Wallace located?

William Wallace practices at 3824 Northern Pike Ste 820, Monroeville, PA 15146. The listed phone number is (412) 457-0424.

What is William Wallace's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is William Wallace enrolled in Medicare?

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

Which organization bills Medicare for William Wallace's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Wallace reassigns Medicare benefits to Allegheny Clinic (Monroeville, PA). The 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 Wallace's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Wallace accept?

Health plans from Anthem Blue Cross and Blue Shield list William Wallace as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Wallace was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.