William U. Galdamez, PA
Medical Physician Assistant · Garden Grove, CA
William U. Galdamez, PA is a medical physician assistant with a practice address in Garden Grove, California, and NPI 1295047413, issued on Jul 2, 2010. Check the license (California PA20989, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William U. Galdamez
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA20989 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12601 Garden Grove Blvd, Garden Grove, CA 92843
- Phone
- (714) 741-2724
- Enumerated
- Jul 2, 2010
- Record last updated
- Oct 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110301000853); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 12601 Garden Grove Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Senior AdjainoPsychiatric/Mental Health Nurse Practitioner1720784390
- Tommy Cao, PHARM.DPharmacotherapy Pharmacist1386472330
- Hillary ChangEmergency Registered Nurse1699552661
- Antony Chen, DOAnatomic Pathology & Clinical Pathology Physician1235327701
- Gihan George, M.D.Anesthesiology Physician1710055850
- Don HaEmergency Medicine Physician1386339232
Verify William U. Galdamez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA20989Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average medical physician assistant in 2024
90 Medicare Part D claims for 56 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 45 claims were for opioids.
Most prescribed
- Oxycodone Hcl27 claims
- Tramadol Hcl14 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William U. Galdamez among 3,376 medical physician assistant records in California
William U. Galdamez, PA is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 42% of them.
- NPI issued2010 · 42% of these records are older, 54% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2010 · median 2012 among the 1,347 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Garden Grove → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Erika ChavezGarden Grove, CA 928431356261432
- Lorena LopezGarden Grove, CA 928431124948781
- Van Nguyen, PACGarden Grove, CA 928431821164880
- Pha Tran, PAGarden Grove, CA 928431447848247
- Harrison Tran, PA-CGarden Grove, CA 928431023855376
- Tuan Le, P.A.Garden Grove, CA 928441417210204
- Karlyssa Chung, PA-CGarden Grove, CA 928451518305168
- Sharon Liekhus, P.AGarden Grove, CA 928411740219930
Common questions
What is William U. Galdamez, PA's NPI number?
William U. Galdamez, PA's National Provider Identifier (NPI) is 1295047413, issued on Jul 2, 2010. An NPI identifies a provider in billing; it is not a license.
Where is William U. Galdamez, PA located?
The NPPES record lists a practice address at 12601 Garden Grove Blvd, Garden Grove, CA, 92843. Phone: (714) 741-2724. Providers update this record themselves, so call before visiting.
How can I verify William U. Galdamez, PA's license?
NPPES lists California license number PA20989, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does William U. Galdamez, PA prescribe under Medicare Part D?
In 2024, William U. Galdamez, PA had 90 Medicare Part D claims for 56 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.