Jason M. Fletcher, DO

Medicare activity in 2024

Official CMS public-use data for Jason M. Fletcher, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)431 services
2. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)258 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)105 services
4. Hospital discharge day management, more than 30 minutes (99239)68 services
5. Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)50 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%
• Arthritis55%
• Diabetes51%
• Depression51%
• Chronic kidney disease46%

Hospitals where Jason M. Fletcher works

Medicare's Facility Affiliation Data lists Jason M. Fletcher 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.

• UCI Health-LakewoodLakewood, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050581
• UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

Addresses where Jason M. Fletcher is enrolled with Medicare (CMS data updated October 2, 2026).

• 4281 Katella Ave, Suite 111Los Alamitos, CA 90720 (877) 486‑1368

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Los Alamitos

Clinicians with the same Medicare primary specialty in Los Alamitos, CA — not a recommendation.

• Archna Chaudhary, MD
• N Charle Morcos, MD
• Sheida A. Kashani, DO
• Hichang J. Choi, MD
• Richard Wexler, MD
• Etsegenet T. Ayele, MD
• Aaron L. Richler, MD
• Jack Kennis, MD

All internal medicine doctors in Los Alamitos →

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