Peter A. Castillo, M.D.
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician · Los Gatos, CA
Peter A. Castillo, M.D. is a urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician with a practice address in Los Gatos, California, and NPI 1164521035, issued on Sep 21, 2006. Check the license (California A109681, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Peter A. Castillo
- Credential
- M.D.
- Primary taxonomy
- Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician 207VF0040X
- License numbers
- A109681 CA
ME96973 FL
Self-reported in NPPES; status is on the state search - Practice location
- 15215 National Ave Ste 104, Los Gatos, CA 95032
- Phone
- (925) 905-9922
- Enumerated
- Sep 21, 2006
- Record last updated
- Jul 21, 2022
- Fax
- (925) 905-9925
- Medicare enrollment
- Enrolled (PECOS I20091230000667); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records → All 108 in California → Look up another NPI →
Also registered at 15215 National Ave Ste 104
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Josephine Doo, M.D.Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1336670116
Verify Peter A. Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A109681Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician in 2024
638 Medicare Part D claims for 160 beneficiaries, against an average of 732 among the 998 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Estradiol161 claims
- Myrbetriq69 claims
- Progesterone44 claims
- Imvexxy38 claims
- Liothyronine Sodium31 claims
- Gemtesa28 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $631.77
21 payments; by number, the most common kind was food and beverage; the largest payer was Caldera Medical, Inc. The 864 providers of this specialty with any payment received $2,558.52 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Peter A Castillo MD IncLos Gatos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter A. Castillo among 108 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records in California
Peter A. Castillo, M.D. is one of 108 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records with a practice address in California. 96% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 67% newer
- In a Medicare fileYes · 96% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2000 · median 2004 among the 89 with a school on file
- Record last updated2022 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VF0040X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers in California
There are 108 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records in California.
All 108 in California → Every provider in Los Gatos → Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician nationwide →
The 8 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records with the nearest ZIP codes
- Josephine Doo, M.D.Los Gatos, CA 950321336670116
- Shailja Mehta, MDSan Jose, CA 951241578982880
- Sujatha Pathi, M.D.Greenbrae, CA 949041639353279
- Diane Thomas, M.D.Merced, CA 953481376882357
- Amy Alagh, M.D.Oakland, CA 946111205369790
- Olga Ramm, MDOakland, CA 946111881850568
- Marcela Toro BejaranoOakland, CA 946111841753761
- Anna Frick, MDOakland, CA 946091104956408
Common questions
What is Peter A. Castillo, M.D.'s NPI number?
Peter A. Castillo, M.D.'s National Provider Identifier (NPI) is 1164521035, issued on Sep 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter A. Castillo, M.D. located?
The NPPES record lists a practice address at 15215 National Ave Ste 104, Los Gatos, CA, 95032. Phone: (925) 905-9922. Providers update this record themselves, so call before visiting.
How can I verify Peter A. Castillo, M.D.'s license?
NPPES lists California license number A109681, 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.
How much does Peter A. Castillo, M.D. prescribe under Medicare Part D?
In 2024, Peter A. Castillo, M.D. had 638 Medicare Part D claims for 160 beneficiaries; the average among urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician prescribers was 732. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.