Robert Holbrook, M.D.
Gastroenterology Physician · Norman, OK
Robert Holbrook, M.D. is a gastroenterology physician with a practice address in Norman, Oklahoma, and NPI 1053352054, issued on Jun 9, 2006. Check the license (Oklahoma 22135, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Robert Holbrook
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 22135 OK
Self-reported in NPPES; status is on the state search - Practice location
- 1515 N Porter Ave, Norman, OK 73071
- Phone
- (405) 366-8619
- Enumerated
- Jun 9, 2006
- Entity
- Type 1 · individual
Also registered at 1515 N Porter Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charles Lackey, M.D.Gastroenterology Physician1285625640
Verify Robert Holbrook 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 22135Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
29% more Medicare Part D claims than the average gastroenterology physician in 2024
1,096 Medicare Part D claims for 552 beneficiaries, against an average of 848 among the 13,066 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Pantoprazole Sodium288 claims
- Sod Sulf-Potass Sulf-Mag Sulf105 claims
- Omeprazole94 claims
- Peg-3350 And Electrolytes93 claims
- Gavilyte-G55 claims
- Gavilyte-C52 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.
No measured Medicare quality score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,950.71
123 payments, mostly food and beverage; the largest payer was Abbvie Inc.. The 10,593 providers of this specialty with any payment received $4,948.62 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.
One hospital or facility affiliation
- Charles L. Lackey MD, PCNorman, 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.
Gastroenterology Physician providers in Oklahoma
There are 130 gastroenterology physician records in Oklahoma.
Other gastroenterology physician records in Oklahoma
- Jean Abed, M.D.Oklahoma City, OK1528371754
- Ahmed Abdelsatar Ali AbomhyaOklahoma City, OK1841810850
- Haresh Ajmera, MDTulsa, OK1780747261
- Mohamad Al-Rifai, DOTulsa, OK1033670369
- Ahmad Al-Taee, M.D.Oklahoma City, OK1467837880
- Tauseef Ali, M.D.Oklahoma City, OK1417096041
- Peter Aran, M.D.Tulsa, OK1689661878
- Robert Aran, D.O.Tulsa, OK1003357039
- Teddy Bader, MDOklahoma City, OK1386612588
- Romelia Barba Bernal, MDOklahoma City, OK1184318362
Common questions
What is Robert Holbrook, M.D.'s NPI number?
Robert Holbrook, M.D.'s National Provider Identifier (NPI) is 1053352054, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Holbrook, M.D. located?
The NPPES record lists a practice address at 1515 N Porter Ave, Norman, OK, 73071. Phone: (405) 366-8619. Providers update this record themselves, so call before visiting.
How can I verify Robert Holbrook, M.D.'s license?
NPPES lists Oklahoma license number 22135, 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 Robert Holbrook, M.D. prescribe under Medicare Part D?
In 2024, Robert Holbrook, M.D. had 1,096 Medicare Part D claims for 552 beneficiaries; the average among gastroenterology physician prescribers was 848. Part D covers Medicare prescriptions only.
What is Robert Holbrook, M.D.'s Medicare quality score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.