Quick answers
- Does Gregory H. McKinnis accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory H. McKinnis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Gregory H. McKinnis see?
- In 2024, CMS data shows 389 Original Medicare patients and 757 services for Gregory H. McKinnis. This counts Original Medicare only and measures volume, not quality.
- What is Gregory H. McKinnis's NPI number?
- 1972542207. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Gregory H. McKinnis, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 389 |
|---|---|
| Services billed to Medicare | 757 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Sleep study including heart rate, breathing, and sleep time (95800)287 services
- Critical care, first 30-74 minutes (99291)181 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)117 services
- Sleep study in sleep lab with continuous airway pressure (6 years or older) (95811)60 services
- Sleep study in sleep lab (6 years or older) (95810)47 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease52%
- Diabetes47%
- Heart failure36%
Hospitals where Gregory H. McKinnis works
Medicare's Facility Affiliation Data lists Gregory H. McKinnis at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- SSM Health St Anthony Hospital - Oklahoma CityOklahoma City, OK · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 370037
- SSM Health St Anthony Hospital - ShawneeShawnee, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370149
Practice locations
Addresses where Gregory H. McKinnis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 N Lee AveOklahoma City, OK 73102 (405) 272‑6406
- 3418 NW 135th StOklahoma City, OK 73120 (405) 753‑6142
- 608 NW 9th St, Suite 2100Oklahoma City, OK 73102 (405) 232‑5555
Group practices
Medicare enrollment lists Gregory H. McKinnis as a member of these groups (CMS data updated October 2, 2026).
- Healthfirst Physicians Management Services, Inc.32 clinicians in the group
- Nextgen Sleep LLC5 clinicians in the group
Specialties
- Pulmonary Diseaseprimary
Other pulmonologists in Oklahoma City
Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.
Other clinicians in Healthfirst Physicians Management Services, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Uniformed Services Uhs Fe Hebert School Of Med |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1972542207 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians