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Gastroenterology

Rokay Kamyar, MD

Works at hospitals in La Mesa, CA · California

Summary

Dr. Rokay Kamyar, MD is a gastroenterologist at 8860 Ctr Dr, Suite 330, La Mesa, CA 91942. Phone: (619) 460-4055. Accepts Medicare assignment. In 2024, Rokay Kamyar had 194 Original Medicare patients and 440 services. NPI 1770572109. 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: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 8860 Ctr Dr, Suite 330, La Mesa, CA 91942 · Directions
  • Phone: (619) 460‑4055
  • Medicare: Accepts Medicare assignment
  • Hospital: Grossmont Hospital
  • Medical school: graduated 1970 (56 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Rokay Kamyar, 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 Rokay Kamyar accept Medicare assignment?
Yes. Medicare's clinician data says Rokay Kamyar 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 Rokay Kamyar see?
In 2024, CMS data shows 194 Original Medicare patients and 440 services for Rokay Kamyar. This counts Original Medicare only and measures volume, not quality.
What is Rokay Kamyar's NPI number?
1770572109. 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 Rokay Kamyar, 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 patients194
Services billed to Medicare440
Different services or procedures23
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)178 services
  2. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)86 services
  3. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)32 services
  4. Study of esophagus to assess movement (91010)31 services
  5. Diagnostic exam of large bowel using a flexible endoscope (45378)22 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%
  • Arthritis60%
  • Ischemic heart disease33%
  • Diabetes30%
  • Depression29%

Hospitals where Rokay Kamyar works

Medicare's Facility Affiliation Data lists Rokay Kamyar 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.

  • Grossmont HospitalLa Mesa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050026

Practice locations

Addresses where Rokay Kamyar is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Gastroenterology doctors in California →

Other gastroenterologists in La Mesa

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

All gastroenterologists in La Mesa →

Clinician information

CredentialMD
Graduation year1970 (56 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1770572109
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