DR. SARAH BETH MERCER M.D.
NPI 1205093952
Anesthesiology - Critical Care Medicine in Oklahoma City, OK
About Dr. Sarah Beth Mercer M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SARAH BETH MERCER M.D. (NPI 1205093952) is an individual critical care medicine provider in Oklahoma City, Oklahoma, licensed in Oklahoma (31159) and active in the NPI registry since May 2008. She is enrolled in Medicare PECOS, is affiliated with O U Medical Center, and maintains a secondary practice location in Oklahoma City.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 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
Dr. Sarah Beth Mercer 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
12Medicare enrollment records show Sarah Mercer reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oklahoma City, OK 73116
- Reassigned Medicare billing, Oklahoma enrollment
- 507 clinicians in this Medicare group
Oklahoma City, OK 73106
- Reassigned Medicare billing, Oklahoma enrollment
- 63 clinicians in this Medicare group
Oklahoma City, OK 73104
- Reassigned Medicare billing, Oklahoma enrollment
- 1,795 clinicians in this Medicare group
Oklahoma City, OK 73104
- Reassigned Medicare billing, Oklahoma enrollment
- 845 clinicians in this Medicare group
Oklahoma City, OK 73134
- Reassigned Medicare billing, Oklahoma enrollment
- 1,058 clinicians in this Medicare group
Sioux City, IA 51104
- Reassigned Medicare billing, Oklahoma enrollment
- 2 clinicians in this Medicare group
Fort Dodge, IA 50501
- Reassigned Medicare billing, Oklahoma enrollment
- 2 clinicians in this Medicare group
Rock Island, IL 61201
- Reassigned Medicare billing, Oklahoma enrollment
- 3 clinicians in this Medicare group
Peoria, IL 61603
- Reassigned Medicare billing, Oklahoma enrollment
- 4 clinicians in this Medicare group
Urbana, IL 61801
- Reassigned Medicare billing, Oklahoma enrollment
- Medicare enrollment name: Carle Health Care Incorporated
- 4 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
O U Medical Center
Acute Care Hospitals · Oklahoma City, OKMedicare 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.
OKLAHOMA CITY, OK 73112
OKLAHOMA CITY, OK 73112
OKLAHOMA CITY, OK 73112
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 Sarah Mercer's NPI number?
The NPI number for Sarah Mercer is 1205093952. It was assigned to this individual provider in the NPPES registry on May 20, 2008. The provider is also known as Dr. Sarah Beth Russell.
Where is Sarah Mercer located?
Sarah Mercer practices at 3300 NW Expressway, Oklahoma City, OK 73112. The listed phone number is (405) 949-3011.
What is Sarah Mercer's specialty?
The primary specialty registered for this NPI is Anesthesiology, specializing in Critical Care Medicine, with taxonomy code 207LC0200X.
Is Sarah Mercer enrolled in Medicare?
Yes. Sarah Mercer 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 Sarah Mercer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Mercer reassigns Medicare benefits to 12 organizations: Saints Medical Group, LLC (Oklahoma City, OK), Healthfirst Physicians Management Services, Inc (Oklahoma City, OK), Ou Health Partners, Inc (Oklahoma City, OK), Board Of Regents Of The University Of Oklahoma - Ou Physicians (Oklahoma City, OK), Integris Ambulatory Care Corporation (Oklahoma City, OK) and 7 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 Sarah Mercer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sarah Mercer 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 8 other insurers list Sarah Mercer 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 Sarah Mercer affiliated with any hospitals?
According to CMS data, Sarah Mercer is affiliated with O U Medical Center.
When was this NPI record last updated?
The NPPES record for Sarah Mercer was last updated on December 2, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Dr. Sarah Beth Mercer, M.D. · NPI 1205093952
Critical Care Medicine physician in Oklahoma City, Oklahoma. Individual provider, active in the CMS NPPES registry since May 20, 2008.
## Identity
- **NPI:** 1205093952 (Entity type: Individual)
- **Enumerated:** May 20, 2008
- **Primary specialty:** Anesthesiology - Critical Care Medicine · taxonomy 207LC0200X
- **State license:** 31159 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 3300 NW EXPRESSWAY, Oklahoma City, OK 73112-4418
- **Phone:** (405) 949-3011 · **Fax:** (405) 848-3210
## 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:** 12 organizations under Medicare reassignment (form CMS-855R): Saints Medical Group, LLC (NPI 1437195922, Oklahoma City, OK); Healthfirst Physicians Management Services, Inc (NPI 1891962460, Oklahoma City, OK); Ou Health Partners, Inc (NPI 1528642642, Oklahoma City, OK); Board Of Regents Of The University Of Oklahoma - Ou Physicians (NPI 1801869250, Oklahoma City, OK); Integris Ambulatory Care Corporation (NPI 1750333936, Oklahoma City, OK); and 7 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Oklahoma College Of Medicine, class of 2006
## Record status
- **NPPES last updated:** December 2, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1205093952) · Data from the CMS NPPES public registry.