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Infectious Disease

Artemio J. Mendoza Jr., MD

Works at hospitals in Rochester, NH · Portland, ME · Dover, NH · New Hampshire, Maine

Summary

Dr. Artemio J. Mendoza Jr., MD is an infectious disease doctor at 789 Central Ave, Dover, NH 03820. Phone: (603) 740-4478. Accepts Medicare assignment. In 2024, Artemio J. Mendoza Jr. had 103 Original Medicare patients and 511 services. NPI 1235211558. 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 Artemio J. Mendoza Jr., 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 Artemio J. Mendoza Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Artemio J. Mendoza Jr. 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 Artemio J. Mendoza Jr. see?
In 2024, CMS data shows 103 Original Medicare patients and 511 services for Artemio J. Mendoza Jr.. This counts Original Medicare only and measures volume, not quality.
What is Artemio J. Mendoza Jr.'s NPI number?
1235211558. 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 Artemio J. Mendoza Jr., 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 patients103
Services billed to Medicare511
Different services or procedures14
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)248 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)90 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)67 services
  4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)49 services
  5. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)22 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%
  • Arthritis65%
  • Anxiety50%
  • Ischemic heart disease45%
  • Depression43%

Hospitals where Artemio J. Mendoza Jr. works

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

Group practices

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

  • Wentworth Douglass Physician Corporation429 clinicians in the group

Specialties

Find other Infectious Disease doctors in New Hampshire →

Other infectious disease doctors in New Hampshire

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

All infectious disease doctors in New Hampshire →

Other clinicians in Wentworth Douglass Physician Corporation

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

Clinician information

CredentialMD
Graduation year1996 (30 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1235211558
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