GARY MICHAEL RITTEN MD
NPI 1437211307
Obstetrics & Gynecology - Gynecology in Erie, PA
About Gary Michael Ritten Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GARY MICHAEL RITTEN MD (NPI 1437211307) is an individual gynecology provider in Erie, Pennsylvania, licensed in Pennsylvania (MD444258) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Olean General Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Other Identifiers 5
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
Gary Michael Ritten 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 Reassignments
9Medicare enrollment records show Gary Ritten reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Erie, PA 16504
- Reassigned Medicare billing, Pennsylvania enrollment
- 69 clinicians in this Medicare group
Erie, PA 16504
- Reassigned Medicare billing, Pennsylvania enrollment
- 10 clinicians in this Medicare group
Conneaut, OH 44030
- Reassigned Medicare billing, Ohio enrollment
- 1,437 clinicians in this Medicare group
Dunkirk, NY 14048
- Reassigned Medicare billing, New York enrollment
- 572 clinicians in this Medicare group
Bradford, PA 16701
- Reassigned Medicare billing, New York enrollment
- 163 clinicians in this Medicare group
Cleveland, OH 44106
- Reassigned Medicare billing, Ohio enrollment
- 3,958 clinicians in this Medicare group
Parma, OH 44129
- Reassigned Medicare billing, Ohio enrollment
- 53 clinicians in this Medicare group
Middleburg Heights, OH 44130
- Reassigned Medicare billing, Ohio enrollment
- 238 clinicians in this Medicare group
Coudersport, PA 16915
- Reassigned Medicare billing, Pennsylvania enrollment
- 106 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.
Olean General Hospital
Acute Care Hospitals · Olean, NYUh Regional Hospitals
Acute Care Hospitals · Chardon, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 16504 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Gary Ritten's NPI number?
The NPI number for Gary Ritten is 1437211307. It was assigned to this individual provider in the NPPES registry on December 15, 2006.
Where is Gary Ritten located?
Gary Ritten practices at 2625 Parade St, Erie, PA 16504. The listed phone number is (814) 452-6383.
What is Gary Ritten's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.
Is Gary Ritten enrolled in Medicare?
Yes. Gary Ritten 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 Gary Ritten's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gary Ritten reassigns Medicare benefits to 9 organizations: Medical Associates Of Erie (Erie, PA), Millcreek Community Hospital (Erie, PA), University Primary Care Practices Inc (Conneaut, OH), General Physician, PC (Dunkirk, NY), Olean General Hospital (Bradford, PA) and 4 more organizations, listed in the Medicare section above. 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 Gary Ritten's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gary Ritten accept?
Health plans from Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc., CareSource and MedMutual list Gary Ritten 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 Gary Ritten affiliated with any hospitals?
According to CMS data, Gary Ritten is affiliated with Olean General Hospital and Uh Regional Hospitals.
When was this NPI record last updated?
The NPPES record for Gary Ritten was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Gary Michael Ritten, MD · NPI 1437211307
Gynecology physician in Erie, Pennsylvania. Individual provider, active in the CMS NPPES registry since December 15, 2006.
## Identity
- **NPI:** 1437211307 (Entity type: Individual)
- **Enumerated:** December 15, 2006
- **Primary specialty:** Obstetrics & Gynecology - Gynecology · taxonomy 207VG0400X
- **State license:** MD444258 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 2625 PARADE ST, Erie, PA 16504-2809
- **Phone:** (814) 452-6383 · **Fax:** (814) 452-1427
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Medical Associates Of Erie (NPI 1346368883, Erie, PA); Millcreek Community Hospital (NPI 1578198941, Erie, PA); University Primary Care Practices Inc (NPI 1679602882, Conneaut, OH); General Physician, PC (NPI 1093959322, Dunkirk, NY); Olean General Hospital (NPI 1245502905, Bradford, PA); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 1987
## Record status
- **NPPES last updated:** July 23, 2026
- **Other identifiers:** Medicaid 3025372 (OH); Medicaid 1030642100004 (PA); Medicaid 3225550 (MI); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1437211307) · Data from the CMS NPPES public registry.