Kathleen M. Piacquadio, MD
Obstetrics & Gynecology Physician · San Diego, CA
Kathleen M. Piacquadio, MD is an obstetrics & gynecology physician with a practice address in San Diego, California, and NPI 1124176946, issued on Jan 8, 2007. Check the license (California G59580, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Kathleen M. Piacquadio
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- G59580 CA
4771780 ID
Self-reported in NPPES; status is on the state search - Practice location
- 4647 Zion Ave, San Diego, CA 92120
- Phone
- (619) 528-5000
- Enumerated
- Jan 8, 2007
- Record last updated
- Jun 2, 2026
- Medicare enrollment
- Enrolled (PECOS I20260226003500); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 4647 Zion Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathleen M. Piacquadio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G59580Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Kathleen M. Piacquadio among 5,088 obstetrics & gynecology physician records in California
Kathleen M. Piacquadio, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 38% newer
- In a Medicare fileNo · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1984 · median 2004 among the 2,700 with a school on file
- Record last updated2026 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,088 in California → Every provider in San Diego → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Kaivon Arfaa, MDSan Diego, CA 921201912977463
- Bruce Bekkar, MDSan Diego, CA 921201619044583
- Richard Block, MDSan Diego, CA 921201770631673
- Silverio Chavez, MDSan Diego, CA 921201326107939
- Michael Erickson, MDSan Diego, CA 921201932257896
- Robert Hajosy, MDSan Diego, CA 921201689741514
- Danielle Hammerman, MDSan Diego, CA 921201770631632
- John KennedySan Diego, CA 921201992761654
Common questions
What is Kathleen M. Piacquadio, MD's NPI number?
Kathleen M. Piacquadio, MD's National Provider Identifier (NPI) is 1124176946, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen M. Piacquadio, MD located?
The NPPES record lists a practice address at 4647 Zion Ave, San Diego, CA, 92120. Phone: (619) 528-5000. Providers update this record themselves, so call before visiting.
How can I verify Kathleen M. Piacquadio, MD's license?
NPPES lists California license number G59580, 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.