RONALD G GRIFKA MD
NPI 1386624666
Pediatrics - Pediatric Cardiology in Ann Arbor, MI
About Ronald G Grifka Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RONALD G GRIFKA MD (NPI 1386624666) is an individual pediatric cardiology provider in Ann Arbor, Michigan, licensed in Michigan (4301405835) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 5
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ronald G Grifka Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Ronald Grifka reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ann Arbor, MI 48109
- Reassigned Medicare billing, Michigan enrollment
- Also billed through NPI 1245533918 (Michigan)
- 2,377 clinicians in this Medicare group
Grand Rapids, MI 49546
- Reassigned Medicare billing, Michigan enrollment
- 685 clinicians in this Medicare group
Escanaba, MI 49829
- Reassigned Medicare billing, Michigan enrollment
- 440 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
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 Ronald Grifka's NPI number?
The NPI number for Ronald Grifka is 1386624666. It was assigned to this individual provider in the NPPES registry on January 20, 2006.
Where is Ronald Grifka located?
Ronald Grifka practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.
What is Ronald Grifka's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.
Is Ronald Grifka enrolled in Medicare?
Yes. Ronald Grifka is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ronald Grifka's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Grifka reassigns Medicare benefits to 3 organizations: Regents Of The University Of Michigan (Ann Arbor, MI), Metropolitan Hospital (Grand Rapids, MI) and Dlp Marquette Physician Practices Inc (Escanaba, MI). Each 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 Ronald Grifka's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ronald Grifka accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Ronald Grifka 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 Ronald Grifka was last updated on October 22, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Ronald G Grifka, MD · NPI 1386624666
Pediatric Cardiology physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since January 20, 2006.
## Identity
- **NPI:** 1386624666 (Entity type: Individual)
- **Enumerated:** January 20, 2006
- **Primary specialty:** Pediatrics - Pediatric Cardiology · taxonomy 2080P0202X
- **State license:** 4301405835 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109-5000
- **Phone:** (734) 936-4000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of Michigan (NPI 1003848144, Ann Arbor, MI); Metropolitan Hospital (NPI 1720590961, Grand Rapids, MI); Dlp Marquette Physician Practices Inc (NPI 1538415021, Escanaba, MI) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 22, 2019
- **Other identifiers:** Other 0D16078136 (MI); Other 350D176310 (MI); Other D16256055 (MI); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1386624666) · Data from the CMS NPPES public registry.