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Gastroenterology

Jose L. Pantoja, MD

Works at hospitals in Lakewood, CA · Orange, CA · California

Summary

Dr. Jose L. Pantoja, MD is a gastroenterologist at 5750 Downey Ave, Suite 202, Lakewood, CA 90712. Phone: (562) 634-4939. Accepts Medicare assignment. In 2024, Jose L. Pantoja had 222 Original Medicare patients and 391 services. NPI 1891721353. 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: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 5750 Downey Ave, Suite 202, Lakewood, CA 90712 · Directions
  • Phone: (562) 634‑4939
  • Medicare: Accepts Medicare assignment
  • Hospitals: UCI Health-Lakewood, UCI Health-Orange
  • Group practice: Prohealth Partners, a Medical Group
  • Medical school: graduated 1974 (52 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Jose L. Pantoja, 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 Jose L. Pantoja accept Medicare assignment?
Yes. Medicare's clinician data says Jose L. Pantoja 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 Jose L. Pantoja see?
In 2024, CMS data shows 222 Original Medicare patients and 391 services for Jose L. Pantoja. This counts Original Medicare only and measures volume, not quality.
What is Jose L. Pantoja's NPI number?
1891721353. 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 Jose L. Pantoja, 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 patients222
Services billed to Medicare391
Different services or procedures31
Participating Medicare providerYes
Average age of these patients70

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)120 services
  2. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)72 services
  3. Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk (G0121)38 services
  4. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)26 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)19 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%
  • Diabetes60%
  • Arthritis50%
  • Chronic kidney disease36%
  • Ischemic heart disease33%

Hospitals where Jose L. Pantoja works

Medicare's Facility Affiliation Data lists Jose L. Pantoja 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.

  • UCI Health-LakewoodLakewood, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050581
  • UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

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

Group practices

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

  • Prohealth Partners, a Medical Group239 clinicians in the group

Specialties

Find other Gastroenterology doctors in California →

Other gastroenterologists in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All gastroenterologists in California →

Other clinicians in Prohealth Partners, a Medical Group

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

Clinician information

CredentialMD
Graduation year1974 (52 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891721353
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