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Family Practice

Javier D. Cardenas, MD

Works at hospitals in Berlin, NH · Lebanon, NH · Colebrook, NH · New Hampshire

Summary

Dr. Javier D. Cardenas, MD is a family doctor at 133 Pleasant St, Berlin, NH 03570. Phone: (603) 752-2040. Accepts Medicare assignment. In 2024, Javier D. Cardenas had 155 Original Medicare patients and 490 services. NPI 1134168859. 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 Javier D. Cardenas, 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 Javier D. Cardenas accept Medicare assignment?
Yes. Medicare's clinician data says Javier D. Cardenas 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 Javier D. Cardenas see?
In 2024, CMS data shows 155 Original Medicare patients and 490 services for Javier D. Cardenas. This counts Original Medicare only and measures volume, not quality.
What is Javier D. Cardenas's NPI number?
1134168859. 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 Javier D. Cardenas, 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 patients155
Services billed to Medicare490
Different services or procedures15
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)122 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)81 services
  3. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)60 services
  4. Hospital discharge day management, 30 minutes or less (99238)57 services
  5. Hospital discharge day management, more than 30 minutes (99239)51 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%
  • Arthritis59%
  • Diabetes44%
  • Anxiety38%
  • Ischemic heart disease35%

Hospitals where Javier D. Cardenas works

Medicare's Facility Affiliation Data lists Javier D. Cardenas 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 Javier D. Cardenas is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Javier D. Cardenas as a member of these groups (CMS data updated October 2, 2026).

  • Androscoggin Valley Hospital Inc62 clinicians in the group
  • Coos County Family Health Services Inc34 clinicians in the group

Specialties

Find other Family Practice doctors in New Hampshire →

Other family doctors in Berlin

Clinicians with the same Medicare primary specialty in Berlin, NH — not a recommendation.

All family doctors in Berlin →

Other clinicians in Androscoggin Valley Hospital Inc

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

Clinician information

CredentialMD
Graduation year1984 (42 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134168859
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