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Internal Medicine

Joseph J. Pachorek, MD

Works at hospitals in Pasadena, CA · Glendale, CA · California

Summary

Dr. Joseph J. Pachorek, MD is an internal medicine doctor at 630 S Raymond Ave, Unit 320, Pasadena, CA 91105. Phone: (626) 795-4223. Accepts Medicare assignment. In 2024, Joseph J. Pachorek had 1,042 Original Medicare patients and 5,696 services. NPI 1881622843. 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: 630 S Raymond Ave, Unit 320, Pasadena, CA 91105 · Directions
  • Phone: (626) 795‑4223
  • Medicare: Accepts Medicare assignment
  • Hospitals: Huntington Hospital, USC Verdugo Hills Hospital
  • Group practice: Joseph J. Pachorek MD Inc a California Corporation
  • Medical school: University Of Southern California Keck School Of Medicine · graduated 1986 (40 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 Joseph J. Pachorek, 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 Joseph J. Pachorek accept Medicare assignment?
Yes. Medicare's clinician data says Joseph J. Pachorek 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 Joseph J. Pachorek see?
In 2024, CMS data shows 1,042 Original Medicare patients and 5,696 services for Joseph J. Pachorek. This counts Original Medicare only and measures volume, not quality.
What is Joseph J. Pachorek's NPI number?
1881622843. 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 Joseph J. Pachorek, 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 patients1,042
Services billed to Medicare5,696
Different services or procedures22
Participating Medicare providerYes
Average age of these patients77

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)1,965 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)1,130 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)824 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)680 services
  5. Annual depression screening, 5 to 15 minutes (G0444)671 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 cholesterol75%
  • High blood pressure74%
  • Ischemic heart disease59%
  • Arthritis47%
  • Diabetes26%
  • Chronic kidney disease25%

Hospitals where Joseph J. Pachorek works

Medicare's Facility Affiliation Data lists Joseph J. Pachorek 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 Joseph J. Pachorek is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Joseph J. Pachorek as a member of this group (CMS data updated October 2, 2026).

  • Joseph J. Pachorek MD Inc a California Corporation2 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Pasadena

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

All internal medicine doctors in Pasadena →

Other clinicians in Joseph J. Pachorek MD Inc a California Corporation

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

Clinician information

CredentialMD
Medical schoolUniversity Of Southern California Keck School Of Medicine
Graduation year1986 (40 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1881622843
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