Donald J. Kastens, MD
Gastroenterology Physician · Oklahoma City, OK
Donald J. Kastens, MD is a gastroenterology physician with a practice address in Oklahoma City, Oklahoma, and NPI 1659349801, issued on Mar 12, 2006. Check the license (Oklahoma 13770, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Donald J. Kastens
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 13770 OK
Self-reported in NPPES; status is on the state search - Practice location
- 825 NE 10TH St, Oklahoma City, OK 73104
- Phone
- (405) 271-8478
- Enumerated
- Mar 12, 2006
- Record last updated
- Jan 18, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20060112000727); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 1981
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 825 NE 10TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Donald J. Kastens 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 13770Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average gastroenterology physician in 2024
240 Medicare Part D claims for 131 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Gavilyte-C50 claims
- Omeprazole46 claims
- Peg-3350 And Electrolytes17 claims
- Gavilyte-G15 claims
- Lubiprostone13 claims
- Ondansetron Hcl12 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 practice group's MIPS final score for 2023 (Medicare payment program): 71.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $117.92
1 payment: food and beverage; the largest payer was Madrigal Pharmaceuticals. The 13,350 providers of this specialty with any payment received $5,015.95 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.
Bills Medicare through one group practice
- OU Health Partners IncOklahoma City, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gastroenterology Physician providers in Oklahoma
There are 160 gastroenterology physician records in Oklahoma.
Other gastroenterology physician records in Oklahoma
- Jean Abed, M.D.Oklahoma City, OK1528371754
- Ahmed Abdelsatar Ali AbomhyaOklahoma City, OK1841810850
- Katy Adams, MDOklahoma City, OK1427686765
- Haresh Ajmera, MDTulsa, OK1780747261
- Mohamad Al-Rifai, DOTulsa, OK1033670369
- Ahmad Al-Taee, M.D.Oklahoma City, OK1467837880
- Ijlal Akbar Ali, MDOklahoma City, OK1023423977
- Tauseef Ali, M.D.Oklahoma City, OK1417096041
- Amer Alkhatib, MDTulsa, OK1487740296
- Peter Aran, M.D.Tulsa, OK1689661878
Common questions
What is Donald J. Kastens, MD's NPI number?
Donald J. Kastens, MD's National Provider Identifier (NPI) is 1659349801, issued on Mar 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Donald J. Kastens, MD located?
The NPPES record lists a practice address at 825 NE 10TH St, Oklahoma City, OK, 73104. Phone: (405) 271-8478. Providers update this record themselves, so call before visiting.
How can I verify Donald J. Kastens, MD's license?
NPPES lists Oklahoma license number 13770, 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 Donald J. Kastens, MD prescribe under Medicare Part D?
In 2024, Donald J. Kastens, MD had 240 Medicare Part D claims for 131 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Donald J. Kastens, MD's MIPS final score?
The 2023 MIPS final score is 71.7 of 100, reported for the practice group. 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.