JOHN SEAGRAVES D.O.
NPI 1811208622
Emergency Medicine in Oklahoma City, OK
About John Seagraves D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN SEAGRAVES D.O. (NPI 1811208622) is an individual emergency medicine provider in Oklahoma City, Oklahoma, licensed in Oklahoma (4954) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with Hannibal Regional Hospital, and maintains a secondary practice location in Hannibal.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Group Practice 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 Seagraves D.o. 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 Seagraves reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oklahoma City, OK 73120
- Reassigned Medicare billing, Oklahoma enrollment
- 975 clinicians in this Medicare group
Norman, OK 73071
- Reassigned Medicare billing, Oklahoma enrollment
- 418 clinicians in this Medicare group
Stillwater, OK 74074
- Reassigned Medicare billing, Oklahoma enrollment
- 298 clinicians in this Medicare group
Hannibal, MO 63401
- Reassigned Medicare billing, Missouri enrollment
- 196 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hannibal Regional Hospital
Acute Care Hospitals · Hannibal, MOIntegris Baptist Medical Center, Inc
Acute Care Hospitals · Oklahoma City, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 73109 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 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OKLAHOMA CITY, OK 73109
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 Seagraves's NPI number?
The NPI number for John Seagraves is 1811208622. It was assigned to this individual provider in the NPPES registry on June 25, 2010.
Where is John Seagraves located?
John Seagraves practices at 4200 S Douglas Ave Ste 306, Oklahoma City, OK 73109. The listed phone number is (405) 636-7195.
What is John Seagraves's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Seagraves enrolled in Medicare?
Yes. John Seagraves 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 Seagraves's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Seagraves reassigns Medicare benefits to 4 organizations: Mercy Clinic Oklahoma Communities (Oklahoma City, OK), Emergency Services Of Oklahoma PC (Norman, OK), South Central Emergency Services PC (Stillwater, OK) and Hannibal Regional Healthcare System Inc (Hannibal, MO). 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 Seagraves's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Seagraves accept?
Health plans from Anthem Blue Cross and Blue Shield list John Seagraves 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 Seagraves affiliated with any hospitals?
According to CMS data, John Seagraves is affiliated with Hannibal Regional Hospital and Integris Baptist Medical Center, Inc.
When was this NPI record last updated?
The NPPES record for John Seagraves was last updated on March 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# John Seagraves, D.O. · NPI 1811208622
Emergency Medicine physician in Oklahoma City, Oklahoma. Individual provider, active in the CMS NPPES registry since June 25, 2010.
## Identity
- **NPI:** 1811208622 (Entity type: Individual)
- **Enumerated:** June 25, 2010
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 4954 (Oklahoma)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4200 S DOUGLAS AVE STE 306, Oklahoma City, OK 73109-3215
- **Phone:** (405) 636-7195
## 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): Mercy Clinic Oklahoma Communities (NPI 1386874550, Oklahoma City, OK); Emergency Services Of Oklahoma PC (NPI 1215249891, Norman, OK); South Central Emergency Services PC (NPI 1558663724, Stillwater, OK); Hannibal Regional Healthcare System Inc (NPI 1003956095, Hannibal, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** March 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1811208622) · Data from the CMS NPPES public registry.