George Manuel Zambrana, P.A
Physician Assistant · El Cajon, CA
George Manuel Zambrana, P.A is a physician assistant with a practice address in El Cajon, California, and NPI 1104836659, issued on Aug 8, 2006. Check the license (California PA16673, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- George Manuel Zambrana
- Credential
- P.A
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA16673 CA
Self-reported in NPPES; status is on the state search - Practice location
- 133 W Main St Ste 100, El Cajon, CA 92020
- Phone
- (619) 401-0404
- Enumerated
- Aug 8, 2006
- Record last updated
- Dec 1, 2022
- Medicaid ID
- PA16673 CA
- Medicare enrollment
- Enrolled (PECOS I20071114000590); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 133 W Main St Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edgar Bulloch, MDObstetrics & Gynecology Physician1508046376
- Maricel DelacruzFamily Nurse Practitioner1700314978
- Alana Ghanim, MDPediatrics Physician1487233938
- William Holder, PHYSICIAN ASSISTANTPhysician Assistant1699816256
- Jose Nuno, P.A.Physician Assistant1275543068
- Tamara Tucker-Ham, N.P.Family Nurse Practitioner1316006794
Verify George Manuel Zambrana in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA16673Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average physician assistant in 2024
171 Medicare Part D claims for 107 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Ibuprofen22 claims
- Cephalexin21 claims
- Albuterol Sulfate Hfa14 claims
- Insulin Syringe12 claims
- Doxycycline Hyclate11 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
- Family Health Centers OF San Diego IncEl Cajon, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
George Manuel Zambrana among 14,451 physician assistant records in California
George Manuel Zambrana, P.A is one of 14,451 physician assistant records with a practice address in California. 75% 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 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2005 · median 2018 among the 7,214 with a school on file
- Record last updated2022 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
33 physician assistant records list a practice address in El Cajon
They are 33 of the 3,277 NPPES records with a practice address in El Cajon, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in El Cajon → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Laura Allen, PA-CEl Cajon, CA 920201699201616
- Alisia AlyasEl Cajon, CA 920201437768017
- Matthew Anderson, PA-CEl Cajon, CA 920201144733544
- Jennifer Hamblin, MMS, PA-C, ATCEl Cajon, CA 920201629457403
- William Holder, PHYSICIAN ASSISTANTEl Cajon, CA 920201699816256
- Melissa Kent, PA-CEl Cajon, CA 920201699737676
- Molly Miller, PA-CEl Cajon, CA 920201356892418
- Jose Nuno, P.A.El Cajon, CA 920201275543068
Common questions
What is George Manuel Zambrana, P.A's NPI number?
George Manuel Zambrana, P.A's National Provider Identifier (NPI) is 1104836659, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is George Manuel Zambrana, P.A located?
The NPPES record lists a practice address at 133 W Main St Ste 100, El Cajon, CA, 92020. Phone: (619) 401-0404. Providers update this record themselves, so call before visiting.
How can I verify George Manuel Zambrana, P.A's license?
NPPES lists California license number PA16673, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does George Manuel Zambrana, P.A prescribe under Medicare Part D?
In 2024, George Manuel Zambrana, P.A had 171 Medicare Part D claims for 107 beneficiaries; the average among physician assistant prescribers was 830. 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.