Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Endocrinology

Michael A. Cruz, MD

Sees patients in Chula Vista, CA · California

Summary

Dr. Michael A. Cruz, MD is an endocrinologist at 678 3rd Ave, Chula Vista, CA 91910. Phone: (619) 662-4100. Accepts Medicare assignment. In 2024, Michael A. Cruz had 51 Original Medicare patients and 400 services. NPI 1265851133. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Endocrinologist (Medicare lists Endocrinology)
  • Address: 678 3rd Ave, Chula Vista, CA 91910 · Directions
  • Phone: (619) 662‑4100
  • Medicare: Accepts Medicare assignment
  • Group practice: Centro de Salud de la Comunidad de San Ysidro, Inc.
  • Medical school: University Of California, San Diego School Of Medicine · graduated 2014 (12 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Michael A. Cruz, 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 Michael A. Cruz accept Medicare assignment?
Yes. Medicare's clinician data says Michael A. Cruz 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 Michael A. Cruz see?
In 2024, CMS data shows 51 Original Medicare patients and 400 services for Michael A. Cruz. This counts Original Medicare only and measures volume, not quality.
What is Michael A. Cruz's NPI number?
1265851133. 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 Michael A. Cruz, 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 patients51
Services billed to Medicare400
Different services or procedures6
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Insertion of needle into vein for collection of blood sample (36415)88 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%
  • Diabetes59%
  • Arthritis43%
  • Chronic kidney disease43%
  • Osteoporosis33%

Practice locations

Addresses where Michael A. Cruz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Michael A. Cruz as a member of this group (CMS data updated October 2, 2026).

  • Centro de Salud de la Comunidad de San Ysidro, Inc.297 clinicians in the group

Specialties

Find other Endocrinology doctors in California →

Other endocrinologists in California

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

All endocrinologists in California →

Other clinicians in Centro de Salud de la Comunidad de San Ysidro, Inc.

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, San Diego School Of Medicine
Graduation year2014 (12 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1265851133
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians