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Rheumatology

Shariar Cohen Gadol, MD

Works at hospitals in Simi Valley, CA · Ojai, CA · Thousand Oaks, CA … · California

Summary

Dr. Shariar Cohen Gadol, MD is a rheumatologist at 558 Saint Charles Dr, Suite 124, Thousand Oaks, CA 91360. Phone: (805) 449-8781. Accepts Medicare assignment. In 2024, Shariar Cohen Gadol had 1,604 Original Medicare patients and 705,419 services. NPI 1013054865. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Shariar Cohen Gadol, 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 Shariar Cohen Gadol accept Medicare assignment?
Yes. Medicare's clinician data says Shariar Cohen Gadol 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 Shariar Cohen Gadol see?
In 2024, CMS data shows 1,604 Original Medicare patients and 705,419 services for Shariar Cohen Gadol. This counts Original Medicare only and measures volume, not quality.
What is Shariar Cohen Gadol's NPI number?
1013054865. 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 Shariar Cohen Gadol, 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 patients1,604
Services billed to Medicare705,419
Different services or procedures124
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Injection, romosozumab-aqqg, 1 mg (J3111)215,942 services
  2. Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) (J0717)179,512 services
  3. Injection, golimumab, 1 mg, for intravenous use (J1602)59,600 services
  4. Injection, tocilizumab, 1 mg (J3262)53,560 services
  5. Injection, methylprednisolone acetate, 1 mg (J1010)46,929 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%
  • Arthritis75%
  • Osteoporosis58%
  • Ischemic heart disease31%
  • Anxiety28%

Hospitals where Shariar Cohen Gadol works

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

Specialties

Find other Rheumatology doctors in California →

Other rheumatologists in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All rheumatologists in California →

Clinician information

CredentialMD
Graduation year2002 (24 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1013054865
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