PETER GERRITS
NPI 1871553909
Pediatrics - Pediatric Endocrinology in Royal Oak, MI
About Peter Gerrits NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PETER GERRITS (NPI 1871553909) is an individual pediatric endocrinology provider in Royal Oak, Michigan, licensed in Michigan (4301062337) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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)
Peter Gerrits is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Peter Gerrits reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Royal Oak, MI 48073
- Reassigned Medicare billing, Michigan enrollment
- 154 clinicians in this Medicare group
Royal Oak, MI 48073
- Reassigned Medicare billing, Michigan enrollment
- 1,030 clinicians in this Medicare group
Southfield, MI 48075
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Henry Ford Health St. John Hospital
- 520 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48073 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
ROYAL OAK, MI 48073
ROYAL OAK, MI 48073
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 Peter Gerrits's NPI number?
The NPI number for Peter Gerrits is 1871553909. It was assigned to this individual provider in the NPPES registry on March 24, 2006.
Where is Peter Gerrits located?
Peter Gerrits practices at 3535 W 13 Mile Rd Ste. 707, Royal Oak, MI 48073. The listed phone number is (248) 551-0487.
What is Peter Gerrits's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.
Is Peter Gerrits enrolled in Medicare?
Yes. Peter Gerrits is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Peter Gerrits's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Gerrits reassigns Medicare benefits to 3 organizations: William Beaumont Hospital (Royal Oak, MI), Beaumont Medical Group- Specialty Services (Royal Oak, MI) and Ascension St John Hospital (Southfield, 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 Peter Gerrits's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Peter Gerrits accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list Peter Gerrits 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 Peter Gerrits was last updated on October 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Peter Gerrits · NPI 1871553909
Pediatric Endocrinology physician in Royal Oak, Michigan. Individual provider, active in the CMS NPPES registry since March 24, 2006.
## Identity
- **NPI:** 1871553909 (Entity type: Individual)
- **Enumerated:** March 24, 2006
- **Primary specialty:** Pediatrics - Pediatric Endocrinology · taxonomy 2080P0205X
- **State license:** 4301062337 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 3535 W 13 MILE RD, STE. 707, Royal Oak, MI 48073-6710
- **Phone:** (248) 551-0487
## 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): William Beaumont Hospital (NPI 1063461366, Royal Oak, MI); Beaumont Medical Group- Specialty Services (NPI 1578072906, Royal Oak, MI); Ascension St John Hospital (NPI 1922397058, Southfield, MI) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 22, 2020
- **Other identifiers:** Medicaid 2958733 (MI); Other 350F361320 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1871553909) · Data from the CMS NPPES public registry.