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Internal Medicine

Ervand Kristosturyan, MD

Works at hospitals in Washington, DC · District of Columbia

Summary

Dr. Ervand Kristosturyan, MD is an internal medicine doctor at 401 Warren St, Suite 300, Redwood City, CA 94063. Accepts Medicare assignment. In 2024, Ervand Kristosturyan had 491 Original Medicare patients and 1,815 services. NPI 1679936017. 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: 401 Warren St, Suite 300, Redwood City, CA 94063 · Directions
  • Medicare: Accepts Medicare assignment
  • Hospital: Sibley Memorial Hospital
  • Medical school: graduated 2016 (10 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 Ervand Kristosturyan, 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 Ervand Kristosturyan accept Medicare assignment?
Yes. Medicare's clinician data says Ervand Kristosturyan 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 Ervand Kristosturyan see?
In 2024, CMS data shows 491 Original Medicare patients and 1,815 services for Ervand Kristosturyan. This counts Original Medicare only and measures volume, not quality.
What is Ervand Kristosturyan's NPI number?
1679936017. 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 Ervand Kristosturyan, 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 patients491
Services billed to Medicare1,815
Different services or procedures32
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)652 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)244 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)216 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)106 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)81 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 cholesterol75%
  • High blood pressure68%
  • Arthritis45%
  • Ischemic heart disease26%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)23%
  • Diabetes21%

Hospitals where Ervand Kristosturyan works

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

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Redwood City

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

All internal medicine doctors in Redwood City →

Clinician information

CredentialMD
Graduation year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1679936017
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