Elaine K. Yin, MD

Medicare activity in 2024

Official CMS public-use data for Elaine K. Yin, 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)142 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)53 services
3. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)36 services
4. Assessment of emotional or behavioral problems (96127)26 services
5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)20 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 cholesterol71%
• High blood pressure52%
• Arthritis46%
• Anxiety26%
• Osteoporosis21%
• Diabetes17%

Hospitals where Elaine K. Yin works

Medicare's Facility Affiliation Data lists Elaine K. Yin 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.

• French Hospital Medical CenterSan Luis Obispo, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050232
• Marian Regional Medical CenterSanta Maria, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050107

Practice locations

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

• 1510 E Main St, Suite 104 CSanta Maria, CA 93454 (805) 349‑8514
• 220 S Palisade Dr, Suite 203Santa Maria, CA 93454 (805) 354‑7101

Group practices

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

• Pacific Central Coast Health Centers253 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Santa Maria

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

• Karen B. Song, MD
• Maria A. Hwang, DO
• Danny L. Lickness, MD
• Xinyue Chen, DO
• Deepika Raghavan, MD
• Mona Bazargan, DO
• Eli S. Zinner, MD
• Lily A. Mallare, MD

All OB-GYNs in Santa Maria →

Other clinicians in Pacific Central Coast Health Centers

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

• Karen B. Song, MD
• Abraham T. Rasul, MD
• Adam Niku, MD
• Michael J. Dibiase, MD
• Maria A. Hwang, DO
• Allyson M. Holman, 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