Registry data as of Aug 27, 2026

Isaac Dennis, D.O.

Hospitalist Physician · Tulsa, OK

Isaac Dennis, D.O. is a hospitalist physician with a practice address in Tulsa, Oklahoma, and NPI 1477999514, issued on May 16, 2013. Check the license (Oklahoma 5548, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1477999514
Name
Isaac Dennis
Credential
D.O.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
5548 OK
Self-reported in NPPES; status is on the state search
Practice location
10501 E 91St St, Tulsa, OK 74133
Phone
(918) 502-1900
Enumerated
May 16, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 10501 E 91St St

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

  1. Susan Beard, RN,IBCLCLactation Consultant (Registered Nurse)1407145766
  2. S Beeson, DOEmergency Medicine Physician1407835655
  3. Jonathan Gaikwad, DOInternal Medicine Physician1568103877
  4. Mini George, PA-CMedical Physician Assistant1447217583
  5. Greg Gray, DOEmergency Medicine Physician1588644660
  6. Megan Greenwood, RN, IBCLCLactation Consultant (Registered Nurse)1346889847

Verify Isaac Dennis 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 5548
    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.

49% fewer Medicare Part D claims than the average hospitalist physician in 2024

481 Medicare Part D claims for 242 beneficiaries, against an average of 940 among the 13,923 providers of this specialty who prescribed in Part D. 23 claims were for opioids.

  1. Isaac Dennis481
  2. Specialty average940

Most prescribed

  1. Prednisone34 claims
  2. Metoprolol Succinate27 claims
  3. Amlodipine Besylate26 claims
  4. Levofloxacin25 claims
  5. Furosemide21 claims
  6. Albuterol Sulfate Hfa19 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 Medicare quality score for 2023: 79.4 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.

  1. Qualityout of 100 · 30% of the final score77.8
  2. Costout of 100 · 30%54.4
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

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

One hospital or facility affiliation

  1. Warren Clinic IncTulsa, 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.

Hospitalist Physician providers in Oklahoma

There are 157 hospitalist physician records in Oklahoma.

Other hospitalist physician records in Oklahoma

  1. Kamran Abbasi, MDTulsa, OK1679561872
  2. Moutasim Al-Shaer, M. D.Tulsa, OK1154361004
  3. Kendall AllmarasMuskogee, OK1740666189
  4. Chelsea Arnhart, DOTulsa, OK1609456334
  5. Brandon Bailey, DOTulsa, OK1104181973
  6. Steven Baker, D.O.Oklahoma City, OK1831174507
  7. Chandramouli Banerjee, M.D.Tulsa, OK1548405160
  8. Ahmad Barazi, M.D.Muskogee, OK1699463463
  9. Pamela Barry Duguid, MDLawton, OK1659366391
  10. Andrew Barsaloux, M.D.Oklahoma City, OK1770670150

Common questions

What is Isaac Dennis, D.O.'s NPI number?

Isaac Dennis, D.O.'s National Provider Identifier (NPI) is 1477999514, issued on May 16, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Isaac Dennis, D.O. located?

The NPPES record lists a practice address at 10501 E 91St St, Tulsa, OK, 74133. Phone: (918) 502-1900. Providers update this record themselves, so call before visiting.

How can I verify Isaac Dennis, D.O.'s license?

NPPES lists Oklahoma license number 5548, 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 Isaac Dennis, D.O. prescribe under Medicare Part D?

In 2024, Isaac Dennis, D.O. had 481 Medicare Part D claims for 242 beneficiaries; the average among hospitalist physician prescribers was 940. Part D covers Medicare prescriptions only.

What is Isaac Dennis, D.O.'s Medicare quality score?

The 2023 MIPS final score is 79.4 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), 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.