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Internal Medicine

Sarkis Arabian, DO

Works at hospitals in Colton, CA · California

Summary

Dr. Sarkis Arabian, DO is an internal medicine doctor at 400 N Pepper Ave, Colton, CA 92324. Phone: (909) 580-1000. Accepts Medicare assignment. In 2024, Sarkis Arabian had 135 Original Medicare patients and 331 services. NPI 1336202266. 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: 400 N Pepper Ave, Colton, CA 92324 · Directions
  • Phone: (909) 580‑1000
  • Medicare: Accepts Medicare assignment
  • Hospital: Arrowhead Regional Medical Center
  • Group practice: Quantum Healthcare Medical Associates Inc (+1 more)
  • Medical school: graduated 2005 (21 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Sarkis Arabian, 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 Sarkis Arabian accept Medicare assignment?
Yes. Medicare's clinician data says Sarkis Arabian 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 Sarkis Arabian see?
In 2024, CMS data shows 135 Original Medicare patients and 331 services for Sarkis Arabian. This counts Original Medicare only and measures volume, not quality.
What is Sarkis Arabian's NPI number?
1336202266. 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 Sarkis Arabian, 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 patients135
Services billed to Medicare331
Different services or procedures25
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Critical care, first 30-74 minutes (99291)116 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)54 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)32 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)27 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)27 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 cholesterol72%
  • Diabetes59%
  • Heart failure59%
  • Chronic kidney disease56%
  • COPD44%

Hospitals where Sarkis Arabian works

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

Group practices

Medicare enrollment lists Sarkis Arabian as a member of these groups (CMS data updated October 2, 2026).

  • Quantum Healthcare Medical Associates Inc109 clinicians in the group
  • Clinic Services of California Medical Group Inc61 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Colton

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

All internal medicine doctors in Colton →

Other clinicians in Quantum Healthcare Medical Associates Inc

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

Clinician information

CredentialDO
Graduation year2005 (21 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1336202266
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