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Internal Medicine

Oscar J. Hernandez, MD

Works at hospitals in Roswell, NM · New Mexico

Summary

Dr. Oscar J. Hernandez, MD is an internal medicine doctor at 601 Dr Martin Luther King Jr Ave NE, Albuquerque, NM 87102. Phone: (505) 727-8000. Accepts Medicare assignment. In 2024, Oscar J. Hernandez had 132 Original Medicare patients and 400 services. NPI 1699706952. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 601 Dr Martin Luther King Jr Ave NE, Albuquerque, NM 87102 · Directions
  • Phone: (505) 727‑8000
  • Medicare: Accepts Medicare assignment
  • Hospital: Lovelace Regional Hospital - Roswell
  • Group practice: Netherlands Anesthesia, LLC
  • Medical school: University Of Southern California Keck School Of Medicine · graduated 1997 (29 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Oscar J. Hernandez, 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 Oscar J. Hernandez accept Medicare assignment?
Yes. Medicare's clinician data says Oscar J. Hernandez 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 Oscar J. Hernandez see?
In 2024, CMS data shows 132 Original Medicare patients and 400 services for Oscar J. Hernandez. This counts Original Medicare only and measures volume, not quality.
What is Oscar J. Hernandez's NPI number?
1699706952. 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 Oscar J. Hernandez, 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 patients132
Services billed to Medicare400
Different services or procedures6
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)183 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)107 services
  3. Hospital discharge day management, more than 30 minutes (99239)91 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%
  • Arthritis55%
  • Ischemic heart disease44%
  • COPD43%
  • Diabetes40%

Hospitals where Oscar J. Hernandez works

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

Group practices

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

  • Netherlands Anesthesia, LLC41 clinicians in the group

Specialties

Find other Internal Medicine doctors in New Mexico →

Other internal medicine doctors in Albuquerque

Clinicians with the same Medicare primary specialty in Albuquerque, NM — not a recommendation.

All internal medicine doctors in Albuquerque →

Other clinicians in Netherlands Anesthesia, LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Southern California Keck School Of Medicine
Graduation year1997 (29 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1699706952
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