Nancy Merritt, D.O.
NPI 1992843809 · Internal Medicine Physician · Poteau, OK
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Merritt, D.O. is a Internal Medicine Physician provider in Poteau, OK (NPI 1992843809).
Provider details
- NPI number
- 1992843809
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 4429 (OK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Omeprazole | 45 |
| Sertraline Hcl | 25 |
| Levothyroxine Sodium | 24 |
| Atorvastatin Calcium | 20 |
| Gabapentin | 20 |
| Metformin Hcl | 20 |
| Simvastatin | 17 |
| Furosemide | 14 |
| Losartan Potassium | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-02
- Last updated
- 2025-05-08
- Certified
- 2025-05-08
Frequently asked questions
- What is Nancy Merritt's NPI number?
- Nancy Merritt's National Provider Identifier (NPI) is 1992843809, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Merritt's specialty?
- Nancy Merritt is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nancy Merritt located?
- Nancy Merritt's practice location on file with NPPES is 104 Wall St, Poteau, OK 74953-4405.
- What is Nancy Merritt's phone number?
- The practice phone number listed in the NPPES registry for Nancy Merritt is (918) 635-3545.
- Does Nancy Merritt accept Medicare?
- Nancy Merritt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Merritt's NPI active?
- Yes — Nancy Merritt's NPI (1992843809) is active in the NPPES registry as of the last update on 2025-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.