JOHN LEAHY M.D.
NPI 1396008405
Obstetrics & Gynecology in Royal Oak, MI
About John Leahy M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN LEAHY M.D. (NPI 1396008405) is an individual obstetrics & gynecology provider in Royal Oak, Michigan, licensed in Minnesota (4301101353) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, is affiliated with Henry Ford Health Hospital, and is a graduate of Michigan State University College Of Human Medicine (2012).
NPPES Registry Identity
Specialties & Licenses
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
John Leahy M.d. 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 Reassignments
4Medicare enrollment records show John Leahy reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Detroit, MI 48202
- Reassigned Medicare billing, Michigan enrollment
- 88 clinicians in this Medicare group
Clinton Twp, MI 48035
- Reassigned Medicare billing, Michigan enrollment
- 556 clinicians in this Medicare group
Roseville, MI 48066
- Reassigned Medicare billing, Michigan enrollment
- 99 clinicians in this Medicare group
Wyandotte, MI 48192
- Reassigned Medicare billing, Michigan enrollment
- 197 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Henry Ford Health Hospital
Acute Care Hospitals · Detroit, MIPhysician 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 John Leahy's NPI number?
The NPI number for John Leahy is 1396008405. It was assigned to this individual provider in the NPPES registry on June 22, 2012.
Where is John Leahy located?
John Leahy practices at 3535 W 13 Mile Rd Suite 233, Royal Oak, MI 48073. The listed phone number is (248) 551-0417.
What is John Leahy's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is John Leahy enrolled in Medicare?
Yes. John Leahy 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 organizations bill Medicare for John Leahy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Leahy reassigns Medicare benefits to 4 organizations: Henry Ford Health System (Detroit, MI), Henry Ford Macomb Hospital Corporation (Clinton Twp, MI), Together Women's Health Medical Group, P.C. (Roseville, MI) and Henry Ford Wyandotte Hospital (Wyandotte, 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 John Leahy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Leahy 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 1 other insurer list John Leahy 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.
Is John Leahy affiliated with any hospitals?
According to CMS data, John Leahy is affiliated with Henry Ford Health Hospital.
When was this NPI record last updated?
The NPPES record for John Leahy was last updated on June 22, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# John Leahy, M.D. · NPI 1396008405
Obstetrics & Gynecology physician in Royal Oak, Michigan. Individual provider, active in the CMS NPPES registry since June 22, 2012.
## Identity
- **NPI:** 1396008405 (Entity type: Individual)
- **Enumerated:** June 22, 2012
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 4301101353 (Minnesota)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3535 W 13 MILE RD, SUITE 233, Royal Oak, MI 48073-6770
- **Phone:** (248) 551-0417 · **Fax:** (248) 551-5010
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Henry Ford Health System (NPI 1790856235, Detroit, MI); Henry Ford Macomb Hospital Corporation (NPI 1134265986, Clinton Twp, MI); Together Women's Health Medical Group, P.C. (NPI 1750415915, Roseville, MI); Henry Ford Wyandotte Hospital (NPI 1710315932, Wyandotte, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Michigan State University College Of Human Medicine, class of 2012
## Record status
- **NPPES last updated:** June 22, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1396008405) · Data from the CMS NPPES public registry.