Sheri Christian-Armstrong DO
About this NPIWhat this record shows.
NPI 1679996706 is registered to Sheri Christian-Armstrong DO, a Internal Medicine practising at 1201 E Ross Byp in Tahlequah, Oklahoma. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Sheri Christian-Armstrong DO has been enumerated in the National Provider Identifier (NPI) registry since 2014.
Your brand here.
Medicare enrollment
This provider holds 9 Medicare enrollments on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20161026002177HospitalistOK
- I20181101001763Internal MedicineIA
- I20211014003180Internal MedicineCO
- I20230602001171Internal MedicineNM
- I20240726001594Internal MedicineNV
- I20240919002028HospitalistFL
- I20241217004415Internal MedicineGA
- I20250103003062Internal MedicineID
- I20250227000965HospitalistWI
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Sheri Christian-Armstrong DO accepts. To confirm in-network status with your specific health plan, contact Sheri Christian-Armstrong DO directly at (918) 456-2575.
Frequently asked
Yes. NPI 1679996706 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (918) 456-2575.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Sheri Christian-Armstrong DO is a Type-1 individual NPI.