Justina K. Zhang, PA-C
Medical Physician Assistant · Fountain Valley, CA
Justina K. Zhang, PA-C is a medical physician assistant with a practice address in Fountain Valley, California, and NPI 1184344103, issued on Aug 30, 2022. Check the license (California 61563, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Justina K. Zhang
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 61563 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11160 Warner Ave Ste 417, Fountain Valley, CA 92708
- Phone
- (714) 424-9300
- Enumerated
- Aug 30, 2022
- Record last updated
- Jul 1, 2025
- Medicare enrollment
- Enrolled (PECOS I20251005000067); 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 11160 Warner Ave Ste 417
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sharon LeePhysician Assistant1225828155
Verify Justina K. Zhang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 61563Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average medical physician assistant in 2024
3,863 Medicare Part D claims for 222 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 1,860 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen701 claims
- Gabapentin512 claims
- Oxycodone-Acetaminophen360 claims
- Oxycodone Hcl250 claims
- Cyclobenzaprine Hcl219 claims
- Pregabalin190 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: $174.01
17 payments; by number, the most common kind was food and beverage; the largest payer was Valinor Pharma, LLC. The 16,165 providers of this specialty with any payment received $1,055.00 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
- Orca Rehab IncFullerton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justina K. Zhang among 3,376 medical physician assistant records in California
Justina K. Zhang, PA-C 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 2022, is newer than 82% of them.
- NPI issued2022 · 82% of these records are older, 14% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2021 · median 2012 among the 1,347 with a school on file
- Record last updated2025 · 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 Fountain Valley → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Lisa Cai, PA-CFountain Valley, CA 927081699243253
- William Canaletti, PA-CFountain Valley, CA 927081124056767
- Sarah Garrett, PA-CFountain Valley, CA 927081962805408
- Jasmine Li, PA-CFountain Valley, CA 927081033880646
- Hannah Manning, PA-CFountain Valley, CA 927081780378521
- Breanna Murray, PA-CFountain Valley, CA 927081063872117
- Kaitlyn Nguyen, P.A.C.Fountain Valley, CA 927081043590250
- Daniel Nguyen, PA-CFountain Valley, CA 927081962047365
Common questions
What is Justina K. Zhang, PA-C's NPI number?
Justina K. Zhang, PA-C's National Provider Identifier (NPI) is 1184344103, issued on Aug 30, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Justina K. Zhang, PA-C located?
The NPPES record lists a practice address at 11160 Warner Ave Ste 417, Fountain Valley, CA, 92708. Phone: (714) 424-9300. Providers update this record themselves, so call before visiting.
How can I verify Justina K. Zhang, PA-C's license?
NPPES lists California license number 61563, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Justina K. Zhang, PA-C prescribe under Medicare Part D?
In 2024, Justina K. Zhang, PA-C had 3,863 Medicare Part D claims for 222 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.