Isaac Dennis, D.O.
NPI 1477999514 · Hospitalist Physician · Tulsa, OK
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isaac Dennis, D.O. is a Hospitalist Physician provider in Tulsa, OK (NPI 1477999514).
Provider details
- NPI number
- 1477999514
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 5548 (OK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
851 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 377 | $110 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 241 | $106 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 161 | $73 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 72 | $162 |
Typical Medicare-allowed amounts for these services range $73–$162 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 34 | 33 |
| Metoprolol Succinate | 27 | 16 |
| Amlodipine Besylate | 26 | 17 |
| Levofloxacin | 25 | 23 |
| Furosemide | 21 | 18 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 19 | 19 |
| Atorvastatin Calcium | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-05-16
- Last updated
- 2017-07-31
Frequently asked questions
- What is Isaac Dennis's NPI number?
- Isaac Dennis's National Provider Identifier (NPI) is 1477999514, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isaac Dennis's specialty?
- Isaac Dennis is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Isaac Dennis located?
- Isaac Dennis's practice location on file with NPPES is 10501 E 91st St, Tulsa, OK 74133-5790.
- What is Isaac Dennis's phone number?
- The practice phone number listed in the NPPES registry for Isaac Dennis is (918) 502-1900.
- Does Isaac Dennis accept Medicare?
- Isaac Dennis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isaac Dennis's NPI active?
- Yes — Isaac Dennis's NPI (1477999514) is active in the NPPES registry as of the last update on 2017-07-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.