NEPHROLOGY AND RHEUMATOLOGY ASSOCIATES PLLC
NPI 1619738937
Internal Medicine in Grand Blanc, MI

Q: What is Nephrology And Rheumatology Associates PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since January 23, 2024

8423 OXFORD LN, GRAND BLANC, MI 48439(832) 757-3529 Get Directions Write a Review

NPPES record last updated: July 15, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 15, 2026, Feb 9, 2024 (2 updates tracked since 2024).

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About Nephrology And Rheumatology Associates Pllc NPPES

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

NEPHROLOGY AND RHEUMATOLOGY ASSOCIATES PLLC (NPI 1619738937) is a healthcare organization registered as an internal medicine in Grand Blanc, Michigan and active in the NPI registry since January 2024. The organization lists Syed Mohsin, Md, as its authorized official.

NPPES Registry Identity

NPI1619738937

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameNEPHROLOGY AND RHEUMATOLOGY ASSOCIATES PLLC

Location Address8423 OXFORD LNGrand Blanc, MI 48439-7452

Mailing Address8423 Oxford LnGrand Blanc, MI 48439-7452 · (630) 788-1425

Phone(832) 757-3529

Organization SubpartNo

Authorized OfficialSyed MohsinMd · (832) 757-3529

Enumeration DateJanuary 23, 2024

Last NPPES UpdateJuly 15, 20262 updates tracked since enumeration

NPPES CertifiedJuly 15, 2026

✔ NPI 1619738937 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedInternal Medicine · NephrologyTaxonomy 207RN0300X

8423 OXFORD LN, Grand Blanc, MI 48439

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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Nephrology And Rheumatology Associates Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 4 clinicians reassign Medicare billing to Nephrology And Rheumatology Associates PLLC, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (4)

Jeremy Spencer, NURSE PRACTITIONER

Nurse Practitioner

NPI 1174998371

1525 W CARO RD
Caro, MI 48723

(989) 672-2100

✔ PECOS✔ Accepts Medicare40 mi

Cynthia Evans, FNP-C

Nurse Practitioner

NPI 1881238517

4760 FASHION SQUARE BLVD STE L-1
Saginaw, MI 48604

(989) 282-4003

✔ PECOS✔ Accepts Medicare44 mi

Syed Mohsin, MD, MPH

Internal Medicine

NPI 1366954406

4201 ST ANTOINE ST, 2E
Detroit, MI 48201

(313) 745-4832

✔ PECOS✔ Accepts Medicare47 mi

Rabeea Mirza, M.D

Rheumatology

NPI 1679993216

4304 PAGE AVE SUITE 200
Jackson, MI 49201

(517) 205-7224

✔ PECOS✔ Accepts Medicare59 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 Nephrology And Rheumatology Associates PLLC's NPI number?

The NPI number for Nephrology And Rheumatology Associates PLLC is 1619738937. It was assigned to this organization in the NPPES registry on January 23, 2024.

Where is Nephrology And Rheumatology Associates PLLC located?

Nephrology And Rheumatology Associates PLLC is located at 8423 Oxford Ln, Grand Blanc, MI 48439. The listed phone number is (832) 757-3529.

What is Nephrology And Rheumatology Associates PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Nephrology And Rheumatology Associates PLLC enrolled in Medicare?

Yes. Nephrology And Rheumatology Associates PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Nephrology And Rheumatology Associates PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians reassign their Medicare billing to Nephrology And Rheumatology Associates PLLC, in Internal Medicine, Nurse Practitioner and Rheumatology. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Nephrology And Rheumatology Associates PLLC accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Nephrology And Rheumatology Associates PLLC 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 Nephrology And Rheumatology Associates PLLC was last updated on July 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.