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Internal Medicine

Henry P. Mendoza, MD

Works at hospitals in Saginaw, MI · Coldwater, MI · Bay City, MI … · Michigan

Summary

Dr. Henry P. Mendoza, MD is an internal medicine doctor at 2239 S Linden Rd, Flint, MI 48532. Phone: (810) 732-0020. Accepts Medicare assignment. In 2024, Henry P. Mendoza had 215 Original Medicare patients and 1,751 services. NPI 1255426102. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Henry P. Mendoza, 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 Henry P. Mendoza accept Medicare assignment?
Yes. Medicare's clinician data says Henry P. Mendoza 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 Henry P. Mendoza see?
In 2024, CMS data shows 215 Original Medicare patients and 1,751 services for Henry P. Mendoza. This counts Original Medicare only and measures volume, not quality.
What is Henry P. Mendoza's NPI number?
1255426102. 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 Henry P. Mendoza, 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 patients215
Services billed to Medicare1,751
Different services or procedures31
Participating Medicare providerYes
Average age of these patients76

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)790 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)147 services
  3. Face-to-face behavioral counseling for obesity, 15 minutes (G0447)113 services
  4. Insertion of needle into vein for collection of blood sample (36415)94 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)73 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%
  • Arthritis74%
  • Anxiety30%
  • Diabetes26%
  • Ischemic heart disease24%

Hospitals where Henry P. Mendoza works

Medicare's Facility Affiliation Data lists Henry P. Mendoza 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.

  • Covenant Medical CenterSaginaw, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230070
  • Insight Hospital and Medical Center ColdwaterColdwater, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230022
  • McLaren Bay RegionBay City, MI · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 230041
  • McLaren FlintFlint, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230141

Practice locations

Addresses where Henry P. Mendoza is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in Michigan →

Other internal medicine doctors in Flint

Clinicians with the same Medicare primary specialty in Flint, MI — not a recommendation.

All internal medicine doctors in Flint →

Clinician information

CredentialMD
Graduation year1966 (60 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1255426102
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