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Internal Medicine

Alexander R. Del Rosario, MD

Works at hospitals in Rancho Mirage, CA · California

Summary

Dr. Alexander R. Del Rosario, MD is an internal medicine doctor at 1111 E Tahquitz Canyon Way, Suite 120, Palm Springs, CA 92262. Phone: (760) 837-8366. Accepts Medicare assignment. In 2024, Alexander R. Del Rosario had 461 Original Medicare patients and 138,494 services. NPI 1841259231. 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: 1111 E Tahquitz Canyon Way, Suite 120, Palm Springs, CA 92262 · Directions (2 more locations)
  • Phone: (760) 837‑8366
  • Medicare: Accepts Medicare assignment
  • Hospital: Eisenhower Medical Center
  • Group practice: Eisenhower Medical Center
  • Medical school: Hahnemann University College Of Medicine · graduated 1994 (32 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Alexander R. Del Rosario, 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 Alexander R. Del Rosario accept Medicare assignment?
Yes. Medicare's clinician data says Alexander R. Del Rosario 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 Alexander R. Del Rosario see?
In 2024, CMS data shows 461 Original Medicare patients and 138,494 services for Alexander R. Del Rosario. This counts Original Medicare only and measures volume, not quality.
What is Alexander R. Del Rosario's NPI number?
1841259231. 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 Alexander R. Del Rosario, 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 patients461
Services billed to Medicare138,494
Different services or procedures34
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Injection, testosterone cypionate, 1 mg (J1071)136,002 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)971 services
  3. Injection of drug or substance under skin or into muscle (96372)724 services
  4. Administration of pneumococcal vaccine (G0009)128 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)109 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%
  • Arthritis41%
  • Chronic kidney disease26%
  • Depression21%
  • Anxiety21%

Hospitals where Alexander R. Del Rosario works

Medicare's Facility Affiliation Data lists Alexander R. Del Rosario 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 Alexander R. Del Rosario is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Alexander R. Del Rosario as a member of this group (CMS data updated October 2, 2026).

  • Eisenhower Medical Center456 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Palm Springs

Clinicians with the same Medicare primary specialty in Palm Springs, CA — not a recommendation.

All internal medicine doctors in Palm Springs →

Other clinicians in Eisenhower Medical Center

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

Clinician information

CredentialMD
Medical schoolHahnemann University College Of Medicine
Graduation year1994 (32 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1841259231
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