ANDREW GRIM MD
NPI 1952714875
Pediatrics - Pediatric Rheumatology in Ann Arbor, MI
About Andrew Grim Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREW GRIM MD (NPI 1952714875) is an individual pediatric rheumatology provider in Ann Arbor, Michigan, licensed in Michigan (4301506259) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Diego, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2014).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Andrew Grim Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Andrew Grim reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ann Arbor, MI 48109
- Reassigned Medicare billing, Michigan enrollment
- 2,377 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 Andrew Grim's NPI number?
The NPI number for Andrew Grim is 1952714875. It was assigned to this individual provider in the NPPES registry on June 9, 2014.
Where is Andrew Grim located?
Andrew Grim practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 647-5299.
What is Andrew Grim's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Rheumatology, with taxonomy code 2080P0216X.
Is Andrew Grim enrolled in Medicare?
Yes. Andrew Grim is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Andrew Grim's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Grim reassigns Medicare benefits to Regents Of The University Of Michigan (Ann Arbor, MI). The 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 Andrew Grim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andrew Grim accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Andrew Grim 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 Andrew Grim was last updated on July 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Andrew Grim, MD · NPI 1952714875
Pediatric Rheumatology physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since June 9, 2014.
## Identity
- **NPI:** 1952714875 (Entity type: Individual)
- **Enumerated:** June 9, 2014
- **Primary specialty:** Pediatrics - Pediatric Rheumatology · taxonomy 2080P0216X
- **State license:** 4301506259 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109-5000
- **Phone:** (734) 647-5299
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Regents Of The University Of Michigan (NPI 1003848144, Ann Arbor, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 2014
## Record status
- **NPPES last updated:** July 21, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1952714875) · Data from the CMS NPPES public registry.