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General Practice

Craig P. Giacomini, MD

Sees patients in Garden Grove, CA · Napa, CA · Fairfield, CA · California

Summary

Dr. Craig P. Giacomini, MD is a general practitioner at 12664 Chapman Ave, Unit 1307, Garden Grove, CA 92840. May accept Medicare assignment. NPI 1063857084. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: General practitioner (Medicare lists General Practice)
  • Address: 12664 Chapman Ave, Unit 1307, Garden Grove, CA 92840 · Directions (2 more locations)
  • Medicare: May accept Medicare assignment
  • Medical school: graduated 2004 (22 years since medical school)
  • Gender (as listed): Male
NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Craig P. Giacomini, 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 Craig P. Giacomini accept Medicare assignment?
Medicare's clinician data says Craig P. Giacomini may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Craig P. Giacomini's NPI number?
1063857084. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Craig P. Giacomini is enrolled with Medicare (CMS data updated October 2, 2026).

  • 12664 Chapman Ave, Unit 1307Garden Grove, CA 92840
  • 215 Gateway Rd W, Suite 100Napa, CA 94558
  • 5030 Business Ctr Dr, Suite 130Fairfield, CA 94534

Specialties

Find other General Practice doctors in California →

Other general practitioners in California

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

All general practitioners in California →

Clinician information

CredentialMD
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1063857084
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians