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General Surgery

Haroon M. Mojaddidi, MD

Works at hospitals in Castro Valley, CA · Fairfield, CA · Davis, CA … · California

Summary

Dr. Haroon M. Mojaddidi, MD is a general surgeon at 2702 Low Ct, Fairfield, CA 94534. Phone: (707) 432-2600. Accepts Medicare assignment. In 2024, Haroon M. Mojaddidi had 396 Original Medicare patients and 862 services. NPI 1477641223. 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: General surgeon (Medicare lists General Surgery)
  • Address: 2702 Low Ct, Fairfield, CA 94534 · Directions (2 more locations)
  • Phone: (707) 432‑2600
  • Medicare: Accepts Medicare assignment
  • Hospitals: Eden Medical Center, NorthBay Medical Center, Sutter Davis Hospital and 2 more
  • Group practice: Sutter Valley Medical Foundation
  • Medical school: George Washington University School Of Medicine · graduated 2000 (26 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Haroon M. Mojaddidi, 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 Haroon M. Mojaddidi accept Medicare assignment?
Yes. Medicare's clinician data says Haroon M. Mojaddidi 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 Haroon M. Mojaddidi see?
In 2024, CMS data shows 396 Original Medicare patients and 862 services for Haroon M. Mojaddidi. This counts Original Medicare only and measures volume, not quality.
What is Haroon M. Mojaddidi's NPI number?
1477641223. 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 Haroon M. Mojaddidi, 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 patients396
Services billed to Medicare862
Different services or procedures138
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)133 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)106 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)105 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)68 services
  5. Insertion of central venous tube with port (5 years or older) (36561)29 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 cholesterol68%
  • Arthritis49%
  • Diabetes39%
  • Chronic kidney disease39%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)28%

Hospitals where Haroon M. Mojaddidi works

Medicare's Facility Affiliation Data lists Haroon M. Mojaddidi 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.

  • Eden Medical CenterCastro Valley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050488
  • NorthBay Medical CenterFairfield, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050367
  • Sutter Davis HospitalDavis, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050537
  • Sutter Medical Center, SacramentoSacramento, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050108
  • Sutter Solano Medical CenterVallejo, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050101

Practice locations

Addresses where Haroon M. Mojaddidi is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Haroon M. Mojaddidi as a member of this group (CMS data updated October 2, 2026).

  • Sutter Valley Medical Foundation2,500 clinicians in the group

Specialties

Find other General Surgery doctors in California →

Other general surgeons in Fairfield

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

All general surgeons in Fairfield →

Other clinicians in Sutter Valley Medical Foundation

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

Clinician information

CredentialMD
Medical schoolGeorge Washington University School Of Medicine
Graduation year2000 (26 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1477641223
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