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Internal Medicine

Adam R. Pacal, MD

Works at hospitals in San Diego, CA · California

Summary

Dr. Adam R. Pacal, MD is an internal medicine doctor at 3555 Kenyon St, San Diego, CA 92110. Phone: (858) 499-2600. Accepts Medicare assignment. In 2024, Adam R. Pacal had 163 Original Medicare patients and 563 services. NPI 1861432270. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 3555 Kenyon St, San Diego, CA 92110 · Directions
  • Phone: (858) 499‑2600
  • Medicare: Accepts Medicare assignment
  • Hospital: Sharp Memorial Hospital
  • Group practice: Sharp Rees-Stealy Medical Group Inc
  • Medical school: University Of Michigan Medical School · graduated 1999 (27 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Adam R. Pacal, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Adam R. Pacal accept Medicare assignment?
Yes. Medicare's clinician data says Adam R. Pacal accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Adam R. Pacal see?
In 2024, CMS data shows 163 Original Medicare patients and 563 services for Adam R. Pacal. This counts Original Medicare only and measures volume, not quality.
What is Adam R. Pacal's NPI number?
1861432270. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Adam R. Pacal, 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.

Original Medicare patients163
Services billed to Medicare563
Different services or procedures28
Participating Medicare providerYes
Average age of these patients75

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)148 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)120 services
  3. Administration of influenza virus vaccine (G0008)19 services
  4. Influenza vaccine, inactivated (90653)14 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 pressure50%
  • High cholesterol40%
  • Arthritis39%
  • Diabetes17%
  • Osteoporosis16%
  • Depression13%

Hospitals where Adam R. Pacal works

Medicare's Facility Affiliation Data lists Adam R. Pacal 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.

Practice locations

Addresses where Adam R. Pacal is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Adam R. Pacal as a member of this group (CMS data updated October 2, 2026).

  • Sharp Rees-Stealy Medical Group Inc884 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Diego

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

All internal medicine doctors in San Diego →

Other clinicians in Sharp Rees-Stealy Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Michigan Medical School
Graduation year1999 (27 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1861432270
CorrectionsReport an error or suggest an update →

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