Quick answers
- Does Holly A. Harris accept Medicare assignment?
- Yes. Medicare's clinician data says Holly A. Harris 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 Holly A. Harris see?
- In 2024, CMS data shows 155 Original Medicare patients and 157 services for Holly A. Harris. This counts Original Medicare only and measures volume, not quality.
- What is Holly A. Harris's NPI number?
- 1528742459. 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 Holly A. Harris, 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 | 155 |
|---|---|
| Services billed to Medicare | 157 |
| Different services or procedures | 47 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)13 services
- Anesthesia for other procedure on lower abdomen (00840)12 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)11 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 cholesterol69%
- Arthritis55%
- Depression37%
- Anxiety32%
- Diabetes30%
Hospitals where Holly A. Harris works
Medicare's Facility Affiliation Data lists Holly A. Harris 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.
- Oklahoma Surgical Hospital, LLCTulsa, OK · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 370210
- Saint Francis Hospital South, LLCTulsa, OK · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 370218
- Saint Francis Hospital, IncTulsa, OK · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 370091
Practice locations
Addresses where Holly A. Harris is enrolled with Medicare (CMS data updated October 2, 2026).
- 6839 S Canton AveTulsa, OK 74136 (918) 494‑0612
Group practices
Medicare enrollment lists Holly A. Harris as a member of these groups (CMS data updated October 2, 2026).
- Associated Anesthesiologists, Inc.113 clinicians in the group
- Osh Aai PLLC69 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Oklahoma →
Other nurse anesthetists in Tulsa
Clinicians with the same Medicare primary specialty in Tulsa, OK — not a recommendation.
Other clinicians in Associated Anesthesiologists, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528742459 |
| 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