John Donald Adams Jr., DO

Medicare activity in 2024

Official CMS public-use data for John Donald Adams Jr., 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)269 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)189 services
3. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)179 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)116 services
5. Telephone medical discussion with physician, 11-20 minutes (99442)53 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%
• Arthritis53%
• Diabetes52%
• Depression48%
• Anxiety43%

Hospitals where John Donald Adams Jr. works

Medicare's Facility Affiliation Data lists John Donald Adams Jr. 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.

• Memorialcare Long Beach Medical CenterLong Beach, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050485

Practice locations

Addresses where John Donald Adams Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

• 121 S Long Beach BlvdCompton, CA 90221 (310) 627‑5850
• 1360 E Anaheim St, Suite 101Long Beach, CA 90813

Group practices

Medicare enrollment lists John Donald Adams Jr. as a member of these groups (CMS data updated October 2, 2026).

• The Roads Foundation, Inc61 clinicians in the group
• Community Medical Wellness Centers USA29 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Compton

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

• Muhammad J. Memon, MD
• Atul Nakhasi, MD
• Rami Horani, MD
• Binay C. Eapen, MD
• Emilio J. Rodriguez Pena, MD
• Robert Andalon, MD
• Violeta B. Vicencio, MD
• Rene P. Eapen, MD

All internal medicine doctors in Compton →

Other clinicians in The Roads Foundation, Inc

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

• Ling Zhang, NP
• Elizabeth F. Gibbs, DO
• Dalana C. Gonzalez, NP
• Jay R. Lentzner, MD
• Liliana Gonzalez, CSW
• Emily S. Shibata, DPM

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