Kelly K. Nagasawa, MD

Medicare activity in 2024

Official CMS public-use data for Kelly K. Nagasawa, 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.

Most frequent services

1. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)87 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)65 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)45 services
4. Biopsy of lobe of lung using an endoscope, 1 lobe (31628)25 services
5. Computer-assisted image-guided navigation of lung airways using an endoscope (31627)24 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%
• Ischemic heart disease54%
• Heart failure47%
• Arthritis45%
• Diabetes42%

Hospitals where Kelly K. Nagasawa works

Medicare's Facility Affiliation Data lists Kelly K. Nagasawa 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.

• Ascension St John Medical CenterTulsa, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370114
• Hillcrest Hospital SouthTulsa, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370202
• Hillcrest Medical CenterTulsa, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370001

Practice locations

Addresses where Kelly K. Nagasawa is enrolled with Medicare (CMS data updated October 2, 2026).

• 1265 S Utica Ave, Suite 300Tulsa, OK 74104 (918) 592‑0999

Group practices

Medicare enrollment lists Kelly K. Nagasawa as a member of this group (CMS data updated October 2, 2026).

• Ahs Oklahoma Heart LLC132 clinicians in the group

Specialties

• Cardiac Surgeryprimary

Find other Cardiac Surgery doctors in Oklahoma →

Other cardiac surgeons in Tulsa

Clinicians with the same Medicare primary specialty in Tulsa, OK — not a recommendation.

• Michael R. Phillips, MD
• James H. Neel, MD
• Hope Cordova, DO
• David W. Yandell, MD
• John Franco A. Carabello, DO
• Scott Lucas, MD

All cardiac surgeons in Tulsa →

Other clinicians in Ahs Oklahoma Heart LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Alexander Hajduczok, MD
• James Chapman, MD
• Elie Abed, MD
• Marilyn K. Culp, MD
• Kamran Muhammad, MD
• Melissa M. Islas, NP

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians