JOHN C SIEGLE MD
NPI 1710073044
Obstetrics & Gynecology in Ada, OK
About John C Siegle Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN C SIEGLE MD (NPI 1710073044) is an individual obstetrics & gynecology provider in Ada, Oklahoma, licensed in Oklahoma (17253) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Ada, and is a graduate of Jefferson Medical College Of Thomas Jefferson University (1981).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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 C Siegle 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
2Medicare enrollment records show John Siegle reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ada, OK 74820
- Reassigned Medicare billing, Oklahoma enrollment
- 57 clinicians in this Medicare group
Coalgate, OK 74538
- Reassigned Medicare billing, Oklahoma enrollment
- 28 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.
Mercy Hospital Ada
Acute Care Hospitals · Ada, OKO U Medical Center
Acute Care Hospitals · Oklahoma City, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74820 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.
ADA, OK 74820
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 Siegle's NPI number?
The NPI number for John Siegle is 1710073044. It was assigned to this individual provider in the NPPES registry on October 5, 2006.
Where is John Siegle located?
John Siegle practices at 807 N Monte Vista St, Ada, OK 74820. The listed phone number is (580) 332-8855.
What is John Siegle's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is John Siegle enrolled in Medicare?
Yes. John Siegle 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 Siegle's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Siegle reassigns Medicare benefits to 2 organizations: Central Oklahoma Family Medical Center, Inc (Ada, OK) and Family Health Center Of Southern Oklahoma Inc (Coalgate, OK). 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 Siegle's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Siegle accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list John Siegle 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 Siegle affiliated with any hospitals?
According to CMS data, John Siegle is affiliated with Mercy Hospital Ada and O U Medical Center.
When was this NPI record last updated?
The NPPES record for John Siegle was last updated on November 18, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 C Siegle, MD · NPI 1710073044
Obstetrics & Gynecology physician in Ada, Oklahoma. Individual provider, active in the CMS NPPES registry since October 5, 2006.
## Identity
- **NPI:** 1710073044 (Entity type: Individual)
- **Enumerated:** October 5, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 17253 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 807 N MONTE VISTA ST, Ada, OK 74820-7711
- **Phone:** (580) 332-8855 · **Fax:** (580) 332-7374
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Central Oklahoma Family Medical Center, Inc (NPI 1144997693, Ada, OK); Family Health Center Of Southern Oklahoma Inc (NPI 1174830665, Coalgate, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Jefferson Medical College Of Thomas Jefferson University, class of 1981
## Record status
- **NPPES last updated:** November 18, 2021
- **Other identifiers:** Medicaid 100030550A (OK)
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Source: [NPI Profile](https://npiprofile.com/npi/1710073044) · Data from the CMS NPPES public registry.