NPPES file of Aug 9, 2026

Katherine Ann Miller, DO

Internal Medicine Physician · Henryetta, OK

Katherine Ann Miller, DO is an internal medicine physician with a practice address in Henryetta, Oklahoma, and NPI 1811553761, issued on May 16, 2019. Check the license (Oklahoma 6936, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811553761
Name
Katherine Ann Miller
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
6936 OK
Self-reported in NPPES; status is on the state search
Practice location
2401 W Main St, Henryetta, OK 74437
Phone
(918) 650-1100
Enumerated
May 16, 2019
Record last updated
Mar 14, 2023
Medicare enrollment
Enrolled (PECOS I20221203000248); accepts Medicare assignment
Medical or professional school
Oklahoma State University College Of Osteopathic Medicine, 2019
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 2401 W Main St

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

  1. Michael Cain, D.O.Family Medicine Physician1528001518
  2. Michele Crawley, APRN, CNPFamily Nurse Practitioner1184046336
  3. Angela Harris, MSW, LCSWClinical Social Worker1144582511

Verify Katherine Ann Miller 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 6936
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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96% fewer Medicare Part D claims than the average internal medicine physician in 2024

114 Medicare Part D claims for 61 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Katherine Miller114
  2. Specialty average3,176

Most prescribed

  1. Cefdinir14 claims
  2. Prednisone14 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

  1. Tulsa Hospital Medicine Physicians Group, LLCCushing, OK

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

2 internal medicine physician records list a practice address in Henryetta

They are 2 of the 69 NPPES records with a practice address in Henryetta, 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 Ann Miller, DO's NPI number?

Katherine Ann Miller, DO's National Provider Identifier (NPI) is 1811553761, issued on May 16, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Ann Miller, DO located?

The NPPES record lists a practice address at 2401 W Main St, Henryetta, OK, 74437. Phone: (918) 650-1100. Providers update this record themselves, so call before visiting.

How can I verify Katherine Ann Miller, DO's license?

NPPES lists Oklahoma license number 6936, 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 Ann Miller, DO prescribe under Medicare Part D?

In 2024, Katherine Ann Miller, DO had 114 Medicare Part D claims for 61 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.