DR. ROBERT C. JOHN D.D.S., M.D.
NPI 1598765604
Dentist - Oral and Maxillofacial Surgery in Troy, MI
About Dr. Robert C. John D.d.s., M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROBERT C. JOHN D.D.S., M.D. (NPI 1598765604) is an individual oral and maxillofacial surgery provider in Troy, Michigan, licensed in Michigan (2901017024) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Trinity Health Oakland Hospital, and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 8
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
Dr. Robert C. John D.d.s., 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
3Medicare enrollment records show Robert John reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Troy, MI 48084
- Reassigned Medicare billing, Michigan enrollment
Lake Orion, MI 48359
- Reassigned Medicare billing, Michigan enrollment
- 2 clinicians in this Medicare group
Flint, MI 48507
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Great Lakes Oral Surgery And Implants PC
- 2 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Trinity Health Oakland Hospital
Acute Care Hospitals · Pontiac, MIBeaumont Hospital Royal Oak
Acute Care Hospitals · Royal Oak, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48084 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Robert John's NPI number?
The NPI number for Robert John is 1598765604. It was assigned to this individual provider in the NPPES registry on July 29, 2005.
Where is Robert John located?
Robert John practices at 1500 W Big Beaver Rd Ste 110, Troy, MI 48084. The listed phone number is (248) 508-4641.
What is Robert John's specialty?
The primary specialty registered for this NPI is Dentist, specializing in Oral and Maxillofacial Surgery, with taxonomy code 1223S0112X.
Is Robert John enrolled in Medicare?
Yes. Robert John 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 Robert John's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert John reassigns Medicare benefits to 3 organizations: Eight Oaks Professional PLLC (Troy, MI), Seven Oaks Professional, PLLC (Lake Orion, MI) and Great Lakes Oral Surgery And Implants, P.C. (Flint, 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 Robert John's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert John accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and BEST Life and 13 other insurers list Robert John 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 Robert John affiliated with any hospitals?
According to CMS data, Robert John is affiliated with Trinity Health Oakland Hospital and Beaumont Hospital Royal Oak.
When was this NPI record last updated?
The NPPES record for Robert John was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Robert C. John, D.D.S., M.D. · NPI 1598765604
Oral and Maxillofacial Surgery provider in Troy, Michigan. Individual provider, active in the CMS NPPES registry since July 29, 2005.
## Identity
- **NPI:** 1598765604 (Entity type: Individual)
- **Enumerated:** July 29, 2005
- **Primary specialty:** Dentist - Oral and Maxillofacial Surgery · taxonomy 1223S0112X
- **State license:** 2901017024 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 W BIG BEAVER RD STE 110, Troy, MI 48084-3522
- **Phone:** (248) 508-4641
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Eight Oaks Professional PLLC (NPI 1396521688, Troy, MI); Seven Oaks Professional, PLLC (NPI 1558510537, Lake Orion, MI); Great Lakes Oral Surgery And Implants, P.C. (NPI 1902993819, Flint, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** August 21, 2026
- **Other identifiers:** Other 9755066630 (MI); Medicaid 124472206 (MI); Other RJ017024; and 5 more
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Source: [NPI Profile](https://npiprofile.com/npi/1598765604) · Data from the CMS NPPES public registry.