Michael Hemphill, MD
Internal Medicine Physician · Duncan, OK
Michael Hemphill, MD is an internal medicine physician with a practice address in Duncan, Oklahoma, and NPI 1255691960, issued on May 29, 2012. Check the license (Oklahoma 29191, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Michael Hemphill
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 29191 OK
Self-reported in NPPES; status is on the state search - Practice location
- 2515 N Whisenant Drive, Duncan, OK 73533
- Phone
- (580) 251-6806
- Enumerated
- May 29, 2012
- Entity
- Type 1 · individual
Also registered at 2515 N Whisenant Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stacie Elfrink, MDObstetrics & Gynecology Physician1851431357
- Amanda McMasters, NPRegistered Nurse1467970657
- Miguel Tovar, D.O.Obstetrics & Gynecology Physician1396073177
Verify Michael Hemphill 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 29191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2.1 times the Medicare Part D claims of the average internal medicine physician in 2024
5,904 Medicare Part D claims for 697 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Trelegy Ellipta960 claims
- Montelukast Sodium857 claims
- Fluticasone-Salmeterol443 claims
- Azithromycin424 claims
- Albuterol Sulfate Hfa376 claims
- Spiriva Respimat301 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 Medicare quality score for 2023: 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $581.99
20 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospital and facility affiliations
- Duncan Regional Hospital, IncDuncan, OK · Acute Care Hospitals3 of 5 stars
- Hcc Duncan IncDuncan, OK
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Internal Medicine Physician providers in Oklahoma
There are 1,347 internal medicine physician records in Oklahoma.
Other internal medicine physician records in Oklahoma
- Abdelrahman AbdallaOklahoma City, OK1104569227
- Al-Ola Abdallah, M.DTulsa, OK1386837151
- Tony Abdo, M.DOklahoma City, OK1841555935
- David Abernethy, M.D.Oklahoma City, OK1811194749
- Ahmed Abou Elmagd, MDFort Sill, OK1205920717
- Hassan Abouhouli, MDTulsa, OK1366564304
- Addi Abuelshar, MDAltus, OK1295721678
- Ahmad Adam, MDOklahoma City, OK1750840732
- Katy Adams, MDOklahoma City, OK1427686765
- Wellie Adlaon, M.D.Tishomingo, OK1245326925
Common questions
What is Michael Hemphill, MD's NPI number?
Michael Hemphill, MD's National Provider Identifier (NPI) is 1255691960, issued on May 29, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Michael Hemphill, MD located?
The NPPES record lists a practice address at 2515 N Whisenant Drive, Duncan, OK, 73533. Phone: (580) 251-6806. Providers update this record themselves, so call before visiting.
How can I verify Michael Hemphill, MD's license?
NPPES lists Oklahoma license number 29191, 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 Michael Hemphill, MD prescribe under Medicare Part D?
In 2024, Michael Hemphill, MD had 5,904 Medicare Part D claims for 697 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
What is Michael Hemphill, MD's Medicare quality 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.