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CLAUDIA ZACHAREK MD PLC
NPI 1265733307
Internal Medicine - Nephrology in Saginaw, MI

Active since November 05, 2010
4200 FASHION SQUARE BLVD, SAGINAW, MI 48603(989) 293-4509(989) 799-6459 Get Directions Write a Review

NPPES record last updated: December 27, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Claudia Zacharek Md Plc NPPES

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

CLAUDIA ZACHAREK MD PLC (NPI 1265733307) is a healthcare organization registered as a nephrology in Saginaw, Michigan and active in the NPI registry since November 2010. The organization lists Claudia Zacharek, Owner, as its authorized official.

NPPES Registry Identity

NPI1265733307
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameCLAUDIA ZACHAREK MD PLC
Location Address4200 FASHION SQUARE BLVDSaginaw, MI 48603-1375
Mailing Address4200 Fashion Square BlvdSaginaw, MI 48603-1375 · (989) 293-4509 · Fax (989) 799-6459
Phone(989) 293-4509
Fax(989) 799-6459
Organization SubpartNo
Authorized OfficialClaudia ZacharekOwner · (989) 293-4509
Enumeration DateNovember 5, 2010
Last NPPES UpdateDecember 27, 2010
✔ NPI 1265733307 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in MI · 4301092586
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
4200 FASHION SQUARE BLVD, Saginaw, MI 48603
Open in Google Maps ↗

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 Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company.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)

Claudia Zacharek Md Plc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Claudia Zacharek MD Plc, which bills Medicare for the services they deliver. Of these, 3 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (3)

Winifred Angir-Sisco
Nurse Practitioner
NPI 1053870170
4677 TOWNE CENTRE RD STE 303
Saginaw, MI 48604
(989) 401-5354
✔ PECOS✔ Accepts Medicare0.3 mi
Lindsey Lacey, RN MSN FNP-C
Nurse Practitioner
NPI 1063178028
4677 TOWNE CENTRE RD STE 303
Saginaw, MI 48604
(989) 401-5354
✔ PECOS✔ Accepts Medicare0.3 mi
Claudia Zacharek, MD
Nephrology
NPI 1275692642
4677 TOWNE CENTRE RD STE 303 MEDICAL ARTS 3
Saginaw, MI 48604
(989) 401-5354
✔ PECOS✔ Accepts Medicare0.3 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 Claudia Zacharek MD Plc's NPI number?

The NPI number for Claudia Zacharek MD Plc is 1265733307. It was assigned to this organization in the NPPES registry on November 5, 2010.

Where is Claudia Zacharek MD Plc located?

Claudia Zacharek MD Plc is located at 4200 Fashion Square Blvd, Saginaw, MI 48603. The listed phone number is (989) 293-4509.

What is Claudia Zacharek MD Plc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Claudia Zacharek MD Plc enrolled in Medicare?

Yes. Claudia Zacharek MD Plc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Claudia Zacharek MD Plc?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Claudia Zacharek MD Plc, in Nephrology and Nurse Practitioner. 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, 3 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Claudia Zacharek MD Plc accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Claudia Zacharek MD Plc 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 Claudia Zacharek MD Plc was last updated on December 27, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.