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Rheumatology

Mohaddeseh Sharifzadeh, MD

Works at hospitals in Orange, CA · California

Summary

Dr. Mohaddeseh Sharifzadeh, MD is a rheumatologist at 101 The City Dr S, Orange, CA 92868. Phone: (714) 456-7002. Accepts Medicare assignment. In 2024, Mohaddeseh Sharifzadeh had 176 Original Medicare patients and 473 services. NPI 1497201610. 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: Rheumatologist (Medicare lists Rheumatology)
  • Address: 101 The City Dr S, Orange, CA 92868 · Directions
  • Phone: (714) 456‑7002
  • Medicare: Accepts Medicare assignment
  • Hospital: UCI Health-Orange
  • Group practice: UC Regents
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Mohaddeseh Sharifzadeh, 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 Mohaddeseh Sharifzadeh accept Medicare assignment?
Yes. Medicare's clinician data says Mohaddeseh Sharifzadeh 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 Mohaddeseh Sharifzadeh see?
In 2024, CMS data shows 176 Original Medicare patients and 473 services for Mohaddeseh Sharifzadeh. This counts Original Medicare only and measures volume, not quality.
What is Mohaddeseh Sharifzadeh's NPI number?
1497201610. 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 Mohaddeseh Sharifzadeh, 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 patients176
Services billed to Medicare473
Different services or procedures6
Participating Medicare providerYes
Average age of these patients73

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)453 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).

  • Arthritis75%
  • High blood pressure69%
  • High cholesterol68%
  • Osteoporosis30%
  • Anxiety28%
  • Chronic kidney disease26%

Hospitals where Mohaddeseh Sharifzadeh works

Medicare's Facility Affiliation Data lists Mohaddeseh Sharifzadeh 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.

  • UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

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

Group practices

Medicare enrollment lists Mohaddeseh Sharifzadeh as a member of this group (CMS data updated October 2, 2026).

  • UC Regents319 clinicians in the group

Specialties

Find other Rheumatology doctors in California →

Other rheumatologists in Orange

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

All rheumatologists in Orange →

Other clinicians in UC Regents

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

Clinician information

CredentialMD
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1497201610
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