Anna L. Houterman, MD

Medicare activity in 2024

Official CMS public-use data for Anna L. Houterman, 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 low level od decision making, if using time, 20 minutes or more (99213)348 services
2. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)37 services
3. Partial removal of breast (19301)30 services
4. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)25 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)23 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).

• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
• High cholesterol74%
• High blood pressure63%
• Arthritis44%
• Osteoporosis32%
• Anxiety20%

Hospitals where Anna L. Houterman works

Medicare's Facility Affiliation Data lists Anna L. Houterman 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.

• Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050224
• Memorialcare Saddleback Medical CenterLaguna Hills, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050603
• Providence Mission HospitalMission Viejo, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050567
• Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050262
• Santa Monica - UCLA Medical Center & Orthopaedic HospitalSanta Monica, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050112

Practice locations

Addresses where Anna L. Houterman is enrolled with Medicare (CMS data updated October 2, 2026).

• 1801 Wilshire BlvdSanta Monica, CA 90403 (310) 319‑5098
• 24302 Paseo De Valencia, Suite 201Laguna Hills, CA 92653 (949) 598‑1701

Group practices

Medicare enrollment lists Anna L. Houterman as a member of this group (CMS data updated October 2, 2026).

• Regents of the University of California Los Angeles84 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in California →

Other general surgeons in Santa Monica

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

• Nicholas A. Ullman, MD
• Mark M. Youssef, MD
• Sabrinah A. Christie, MD
• Edwin Garcia, MD
• Catherine E. Lewis, MD
• Charles F. Chandler, MD
• Paul J. Shin, MD
• Corey A. Hounschell, DO

All general surgeons in Santa Monica →

Other clinicians in Regents of the University of California Los Angeles

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

• Shirley M. Kahenzadeh, CSW
• Mary C. Mayo, MD
• Carmel Diamant, MD
• Anise Z. Noggle, MD
• Bindi A. Nia, DO
• Ramin Karimi, MD

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