NPPES file of Aug 9, 2026

Katherine Anne Mosteller, DO

Internal Medicine Physician · Tahlequah, OK

Katherine Anne Mosteller, DO is an internal medicine physician with a practice address in Tahlequah, Oklahoma, and NPI 1255851523, issued on Jun 27, 2017. Check the license (Oklahoma 6451, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255851523
Name
Katherine Anne Mosteller
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
6451 OK
Self-reported in NPPES; status is on the state search
Practice location
1400 E Downing St, Tahlequah, OK 74464
Phone
(918) 456-0641
Enumerated
Jun 27, 2017
Record last updated
Jun 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191007001180); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1400 E Downing St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jason Ballew, MDAddiction Medicine (Preventive Medicine) Physician1235146036
  2. Faryal Bhatti, MBBSStudent in an Organized Health Care Education/Training Program1407642705
  3. Celeste Bidwell, APRNAcute Care Nurse Practitioner1184394751
  4. Pakeezah BisharatStudent in an Organized Health Care Education/Training Program1639924822
  5. Blair Brown, DOInternal Medicine Physician1407421027
  6. Stephen Burton, M.D.Neurology Physician1497735740

Verify Katherine Anne Mosteller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 6451
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oklahoma license search

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93% fewer Medicare Part D claims than the average internal medicine physician in 2024

213 Medicare Part D claims for 57 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Katherine Mosteller213
  2. Specialty average3,176

Most prescribed

  1. Metoprolol Succinate11 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.

The MIPS final score for 2023 (Medicare payment program): 91.2 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score79.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $20.81

1 payment: food and beverage; the largest payer was Roche Diagnostics Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katherine Mosteller$20.81
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

2 hospitals and group practices

  1. Northeastern Health SystemTahlequah, OK · Acute Care Hospitals2 of 5 stars
  2. Tahlequah Medical Group LLCTahlequah, OK

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

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.

Other internal medicine physician records in Oklahoma

  1. Abdelrahman AbdallaOklahoma City, OK1104569227
  2. Al-Ola Abdallah, M.DTulsa, OK1386837151
  3. Ahmed Abou Elmagd, MDFort Sill, OK1205920717
  4. Addi Abuelshar, MDAltus, OK1295721678
  5. Ahmad Adam, MDOklahoma City, OK1750840732
  6. Chase Adams, MD, MSOklahoma City, OK1194655910
  7. Wellie Adlaon, M.D.Tishomingo, OK1245326925
  8. Muneeza Afif, MDTahlequah, OK1740544428
  9. Pallavi Agarwal, M.D.Tulsa, OK1831249812
  10. John Agent, DOSallisaw, OK1649217191

Common questions

What is Katherine Anne Mosteller, DO's NPI number?

Katherine Anne Mosteller, DO's National Provider Identifier (NPI) is 1255851523, issued on Jun 27, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Anne Mosteller, DO located?

The NPPES record lists a practice address at 1400 E Downing St, Tahlequah, OK, 74464. Phone: (918) 456-0641. Providers update this record themselves, so call before visiting.

How can I verify Katherine Anne Mosteller, DO's license?

NPPES lists Oklahoma license number 6451, 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 Katherine Anne Mosteller, DO prescribe under Medicare Part D?

In 2024, Katherine Anne Mosteller, DO had 213 Medicare Part D claims for 57 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Katherine Anne Mosteller, DO's MIPS final score?

The 2023 MIPS final score is 91.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.