PAUL CALVIN HOLTROP MD
NPI 1467569491
Pediatrics - Neonatal-Perinatal Medicine in Royal Oak, MI
About Paul Calvin Holtrop Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PAUL CALVIN HOLTROP MD (NPI 1467569491) is an individual neonatal-perinatal medicine provider in Royal Oak, Michigan, licensed in Michigan (4301045996) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Troy.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Paul Calvin Holtrop Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Paul Holtrop reassigns Medicare billing to 2 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
- 946 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.
ROYAL OAK, MI 48073
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 Paul Holtrop's NPI number?
The NPI number for Paul Holtrop is 1467569491. It was assigned to this individual provider in the NPPES registry on August 24, 2006.
Where is Paul Holtrop located?
Paul Holtrop practices at 3601 W 13 Mile Rd, Royal Oak, MI 48073. The listed phone number is (248) 898-0633.
What is Paul Holtrop's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.
Is Paul Holtrop enrolled in Medicare?
Yes. Paul Holtrop is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Paul Holtrop's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Paul Holtrop reassigns Medicare benefits to 2 organizations: William Beaumont Hospital (Royal Oak, MI) and Beaumont Medical Group Hospital -Based Services (Royal Oak, 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 Paul Holtrop's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Paul Holtrop was last updated on August 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.