Sheri D. Christian-Armstrong, DO
Internal Medicine Physician · Tahlequah, OK
Sheri D. Christian-Armstrong, DO is an internal medicine physician with a practice address in Tahlequah, Oklahoma, and NPI 1679996706, issued on Jan 24, 2014. Check the license (Oklahoma 5539, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Sheri D. Christian-Armstrong
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 5539 OK
OS21162 FL
3124 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1201 E Ross Byp, Tahlequah, OK 74464
- Phone
- (918) 456-2575
- Enumerated
- Jan 24, 2014
- Record last updated
- Jul 30, 2026
- Medicare enrollment
- Enrolled (PECOS I20211014003180); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 1201 E Ross Byp
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Lecrone, APRNFamily Nurse Practitioner1568983401
Verify Sheri D. Christian-Armstrong 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 5539Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
176 Medicare Part D claims for 72 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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 4 group practices
- Origin Healthcare PCWindsor, CO
- Thedacare, IncorporatedAppleton, WI
- Villages Regional Hospital Physician Services LLCSummerfield, FL
- Walter Knox Memorial HospitalEmmett, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sheri D. Christian-Armstrong among 1,115 internal medicine physician records in Oklahoma
Sheri D. Christian-Armstrong, DO 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 2014, is newer than 64% of them.
- NPI issued2014 · 64% of these records are older, 34% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2013 · median 2007 among the 653 with a school on file
- Record last updated2026 · 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).
24 internal medicine physician records list a practice address in Tahlequah
They are 24 of the 1,190 NPPES records with a practice address in Tahlequah, and 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Tahlequah → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Muneeza Afif, MDTahlequah, OK 744641740544428
- Natasha Bray, D.O.Tahlequah, OK 744641285840660
- Prashant Kaushik, MDTahlequah, OK 744641073615324
- Nancy Lamoreux, M.D.Tahlequah, OK 744641326029018
- Herbert Littleton, DOTahlequah, OK 744641376588145
- Kelly Marak, D.O., M.S.Tahlequah, OK 744641316174675
- Elaine Quintana, M.D.Tahlequah, OK 744641689758393
- Jena Rogers, MDTahlequah, OK 744641831167139
Common questions
What is Sheri D. Christian-Armstrong, DO's NPI number?
Sheri D. Christian-Armstrong, DO's National Provider Identifier (NPI) is 1679996706, issued on Jan 24, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Sheri D. Christian-Armstrong, DO located?
The NPPES record lists a practice address at 1201 E Ross Byp, Tahlequah, OK, 74464. Phone: (918) 456-2575. Providers update this record themselves, so call before visiting.
How can I verify Sheri D. Christian-Armstrong, DO's license?
NPPES lists Oklahoma license number 5539, 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 Sheri D. Christian-Armstrong, DO prescribe under Medicare Part D?
In 2024, Sheri D. Christian-Armstrong, DO had 176 Medicare Part D claims for 72 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.