Oscar L. Cook, MD

Medicare activity in 2024

Official CMS public-use data for Oscar L. Cook, 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. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)474 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)396 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)75 services
4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)52 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)44 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 cholesterol64%
• High blood pressure62%
• Arthritis46%
• Diabetes24%
• Anxiety23%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)21%

Hospitals where Oscar L. Cook works

Medicare's Facility Affiliation Data lists Oscar L. Cook 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.

• Scripps Memorial Hospital - EncinitasEncinitas, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050503

Practice locations

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

• 2205 Vista Way, Fl 3Oceanside, CA 92054 (760) 704‑5400

Group practices

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

• Scripps Health1,433 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Oceanside

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

• Phuong T. Le Carter, MD
• James N. Groth, MD
• Sandra H. Tan, MD
• M J Peters, MD
• Alan M. Krystal, MD
• Stephen D. Tinio, MD
• Binh C. Lieu, MD
• Sarah A. Papalia, MD

All family doctors in Oceanside →

Other clinicians in Scripps Health

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

• Amy Magnuson, MD
• Jennie Luna, MD
• Christine E. Pritchett, NP
• Monica C. Budianu, MD
• Bahram T. Moghadam, DPM
• James G. Schwendig, 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