John Giacomini, MD
Cardiovascular Disease Physician · Palo Alto, CA
John Giacomini, MD is a cardiovascular disease physician with a practice address in Palo Alto, California, and NPI 1609989516, issued on Aug 16, 2006. Check the license (California C37952, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Giacomini
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- C37952 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3801 Miranda Ave, Palo Alto, CA 94304
- Phone
- (650) 858-3932
- Enumerated
- Aug 16, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 3801 Miranda Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Laurie Ackerman, LCSWClinical Social Worker1699797001
- Russell Acob, RNRegistered Nurse1235757154
Verify John Giacomini in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C37952Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Giacomini among 2,574 cardiovascular disease physician records in California
John Giacomini, MD is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileNo · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,574 in California → Every provider in Palo Alto → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Themistocles AssimesPalo Alto, CA 943041275549693
- Kim Mae Chia, M.D.Palo Alto, CA 943041649589136
- Victor Froelicher, MDPalo Alto, CA 943041174626469
- Nicholas Leeper, MDPalo Alto, CA 943041407044639
- Shriram Nallamshetty, MDPalo Alto, CA 943041477689131
- Marie-Claude Parent, MD, MSC, FRCPCPalo Alto, CA 943041407087976
- J Sotos, MDPalo Alto, CA 943041770608085
- Konstantinos Stathogiannis, MD, PHD, MSCPalo Alto, CA 943041184293227
Common questions
What is John Giacomini, MD's NPI number?
John Giacomini, MD's National Provider Identifier (NPI) is 1609989516, issued on Aug 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Giacomini, MD located?
The NPPES record lists a practice address at 3801 Miranda Ave, Palo Alto, CA, 94304. Phone: (650) 858-3932. Providers update this record themselves, so call before visiting.
How can I verify John Giacomini, MD's license?
NPPES lists California license number C37952, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.