Walcharee C. Mahamitra, DO

Medicare activity in 2024

Official CMS public-use data for Walcharee C. Mahamitra, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)86 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)58 services
3. Insertion of needle into vein for collection of blood sample (36415)33 services
4. Telephone medical discussion with physician, 5-10 minutes (99441)29 services
5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)29 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 cholesterol75%
• High blood pressure53%
• Arthritis46%
• Ischemic heart disease24%
• Diabetes21%
• Anxiety21%

Hospitals where Walcharee C. Mahamitra works

Medicare's Facility Affiliation Data lists Walcharee C. Mahamitra 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.

• Saint John's Health CenterSanta Monica, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050290

Practice locations

Addresses where Walcharee C. Mahamitra is enrolled with Medicare (CMS data updated October 2, 2026).

• 1821 Wilshire Blvd, Suite 301Santa Monica, CA 90403 (310) 828‑6027

Group practices

Medicare enrollment lists Walcharee C. Mahamitra as a member of this group (CMS data updated October 2, 2026).

• Providence Saint Johns Medical Foundation281 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Santa Monica

Clinicians with the same Medicare primary specialty in Santa Monica, CA — not a recommendation.

• Monica L. Plesa, MD
• Brian Dickey, MD
• Talin Meshefedjian, DO
• Yasmine Y. Razi, DO
• Mathias C. Schar
• Eddy Ang, MD
• Marissa R. Silverman, MD
• Megan E. Chen, MD

All family doctors in Santa Monica →

Other clinicians in Providence Saint Johns Medical Foundation

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

• Abbas A. Anwar, MD
• Janet J. Kong, NP
• Rose H. Lin, MD
• Yasmine Y. Razi, DO
• Amit Kochhar, MD
• Anahita G. Sabbar, PA

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