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CC GRIGGS HOLDING, LTD.
NPI 1114024486
Internal Medicine - Nephrology in Detroit, MI

Active since September 20, 2006
18455 JAMES COUZENS FWY, DETROIT, MI 48235(313) 341-7870(313) 341-7950 Get Directions Write a Review

NPPES record last updated: June 12, 2014. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Cc Griggs Holding, Ltd. NPPES

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

CC GRIGGS HOLDING, LTD. (NPI 1114024486) is a healthcare organization registered as a nephrology in Detroit, Michigan and active in the NPI registry since September 2006. The organization lists Cynthia Claudine Griggs, Owner, as its authorized official.

NPPES Registry Identity

NPI1114024486
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameCC GRIGGS HOLDING, LTD.
Location Address18455 JAMES COUZENS FWYDetroit, MI 48235-2506
Mailing Address18455 James Couzens FwyDetroit, MI 48235-2506 · (313) 341-7870 · Fax (313) 341-7950
Phone(313) 341-7870
Fax(313) 341-7950
Organization SubpartNo
Authorized OfficialCynthia Claudine GriggsOwner · (313) 341-7870
Enumeration DateSeptember 20, 2006
Last NPPES UpdateJune 12, 2014
✔ NPI 1114024486 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in MI · 4030161868
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License 4030161868 (MI)
18455 JAMES COUZENS FWY, Detroit, MI 48235
Open in Google Maps ↗

Other Identifiers 2

Medicare UPING77844MI
Medicare ID-Type Unspecified0N99310MI

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 MULTIPLE SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.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)

Cc Griggs Holding, Ltd. 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 Cc Griggs Holding, Ltd., 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)

Cynthia Griggs, M.D.
Internal Medicine
NPI 1154421774
18455 JAMES COUZENS FWY
Detroit, MI 48235
(313) 341-7870
✔ PECOS✔ Accepts MedicareSame address
Muhammad Munir, MD
Cardiovascular Disease (Cardiology)
NPI 1124079553
24681 NORTHWESTERN HWY STE 300
Southfield, MI 48075
(248) 352-2000
✔ PECOS✔ Accepts Medicare4.2 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 Cc Griggs Holding, Ltd.'s NPI number?

The NPI number for Cc Griggs Holding, Ltd. is 1114024486. It was assigned to this organization in the NPPES registry on September 20, 2006.

Where is Cc Griggs Holding, Ltd. located?

Cc Griggs Holding, Ltd. is located at 18455 James Couzens Fwy, Detroit, MI 48235. The listed phone number is (313) 341-7870.

What is Cc Griggs Holding, Ltd.'s specialty?

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

Is Cc Griggs Holding, Ltd. enrolled in Medicare?

Yes. Cc Griggs Holding, Ltd. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Cc Griggs Holding, Ltd.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Cc Griggs Holding, Ltd., in Cardiovascular Disease (Cardiology) and Internal Medicine. 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 Cc Griggs Holding, Ltd. accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Cc Griggs Holding, Ltd. 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 Cc Griggs Holding, Ltd. was last updated on June 12, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.