Nancy Christene Merritt, D.O.
Internal Medicine Physician · Poteau, OK
Nancy Christene Merritt, D.O. is an internal medicine physician with a practice address in Poteau, Oklahoma, and NPI 1992843809, issued on Feb 2, 2007. Check the license (Oklahoma 4429, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Nancy Christene Merritt
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4429 OK
Self-reported in NPPES; status is on the state search - Practice location
- 104 Wall St, Poteau, OK 74953
- Phone
- (918) 635-3545
- Enumerated
- Feb 2, 2007
- Record last updated
- May 8, 2025
- Fax
- (918) 635-3516
- Medicare enrollment
- Enrolled (PECOS I20090811000054); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 104 Wall St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janet Garvin, D.O.Family Medicine Physician1952341562
- Jason Graham, NPFamily Nurse Practitioner1285317735
- Jocelyn Newton, APRNPrimary Care Nurse Practitioner1528758372
- Kassandra Payne, DOFamily Medicine Physician1174903389
- William Willis, M.D.General Practice Physician1205875846
Verify Nancy Christene Merritt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 4429Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average internal medicine physician in 2024
539 Medicare Part D claims for 45 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 13 claims were for opioids.
Most prescribed
- Omeprazole45 claims
- Sertraline Hcl25 claims
- Levothyroxine Sodium24 claims
- Atorvastatin Calcium20 claims
- Gabapentin20 claims
- Metformin Hcl20 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Leflore County Hospital AuthorityPoteau, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nancy Christene Merritt among 1,115 internal medicine physician records in Oklahoma
Nancy Christene Merritt, D.O. is one of 1,115 internal medicine physician records with a practice address in Oklahoma. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 50% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2005 · median 2007 among the 653 with a school on file
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Oklahoma
There are 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Poteau → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- John Agent, DOSallisaw, OK 749551649217191
- Stephen Bastible, DOSallisaw, OK 749551639745888
- Paula McQueen, D.O.Stilwell, OK 749601700877586
- Magdalena Santos, M.D.Stilwell, OK 749601285608091
- Judd MillerOkemah, OK 748591235628918
- Tim Smalley, M.D.McLoud, OK 748511457357972
- Junaid Alam, DOAda, OK 748201881222024
- Sally BergerAda, OK 748201659432458
Common questions
What is Nancy Christene Merritt, D.O.'s NPI number?
Nancy Christene Merritt, D.O.'s National Provider Identifier (NPI) is 1992843809, issued on Feb 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nancy Christene Merritt, D.O. located?
The NPPES record lists a practice address at 104 Wall St, Poteau, OK, 74953. Phone: (918) 635-3545. Providers update this record themselves, so call before visiting.
How can I verify Nancy Christene Merritt, D.O.'s license?
NPPES lists Oklahoma license number 4429, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nancy Christene Merritt, D.O. prescribe under Medicare Part D?
In 2024, Nancy Christene Merritt, D.O. had 539 Medicare Part D claims for 45 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.