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WILLIAM J. PIERCE,M.D.,P.C.
NPI 1376725820
Family Medicine in Merrillville, IN

Active since November 27, 2007
210 E 90TH DR, MERRILLVILLE, IN 46410(219) 738-2008(219) 738-2127 Get Directions Write a Review

NPPES record last updated: February 19, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About William J. Pierce,m.d.,p.c. NPPES

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

WILLIAM J. PIERCE,M.D.,P.C. (NPI 1376725820) is a healthcare organization registered as a family medicine in Merrillville, Indiana and active in the NPI registry since November 2007. The organization lists William John Pierce, President, as its authorized official.

NPPES Registry Identity

NPI1376725820
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameWILLIAM J. PIERCE,M.D.,P.C.
Location Address210 E 90TH DRMerrillville, IN 46410-8102
Mailing Address210 E 90th DrMerrillville, IN 46410-8102 · (219) 738-2008 · Fax (219) 738-2127
Phone(219) 738-2008
Fax(219) 738-2127
Organization SubpartNo
Authorized OfficialWilliam John PiercePresident · (219) 738-2008
Enumeration DateNovember 27, 2007
Last NPPES UpdateFebruary 19, 2008
✔ NPI 1376725820 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
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.
210 E 90TH DR, Merrillville, IN 46410
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Other Identifiers 2

Medicare PIN496530IN
Medicare UPINE26970IN

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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 and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William J. Pierce,m.d.,p.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to William J. Pierce,m.D.,p.C., which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

William Pierce, MD
Family Practice
NPI 1497838593
210 E 90TH DRIVE
Merrillville, IN 46410
(219) 738-2008
✔ PECOS✔ Accepts MedicareSame address
Donald Pesavento, M.D.
General Surgery
NPI 1104843937
9301 CONNECTICUT DRIVE
Crown Point, IN 46307
(219) 796-4117
✔ PECOS✔ Accepts Medicare0.6 mi

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

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 J. Pierce,m.D.,p.C.'s NPI number?

The NPI number for William J. Pierce,m.D.,p.C. is 1376725820. It was assigned to this organization in the NPPES registry on November 27, 2007.

Where is William J. Pierce,m.D.,p.C. located?

William J. Pierce,m.D.,p.C. is located at 210 E 90th Dr, Merrillville, IN 46410. The listed phone number is (219) 738-2008.

What is William J. Pierce,m.D.,p.C.'s specialty?

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

Is William J. Pierce,m.D.,p.C. enrolled in Medicare?

Yes. William J. Pierce,m.D.,p.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through William J. Pierce,m.D.,p.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to William J. Pierce,m.D.,p.C., in Family Practice and General Surgery. A 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 the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does William J. Pierce,m.D.,p.C. accept?

Health plans from Anthem Blue Cross and Blue Shield list William J. Pierce,m.D.,p.C. 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 J. Pierce,m.D.,p.C. was last updated on February 19, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.