Emily Guzman Hays
Physician Assistant · Pomona, CA
Emily Guzman Hays is a physician assistant with a practice address in Pomona, California, and NPI 1932985314, issued on Sep 1, 2023. Check the license (California PA63286, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Emily Guzman Hays
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA63286 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1798 N Garey Ave, Pomona, CA 91767
- Phone
- (909) 865-9500
- Enumerated
- Sep 1, 2023
- Record last updated
- Aug 20, 2024
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 1798 N Garey Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Emily Guzman Hays in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA63286Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average physician assistant in 2024
749 Medicare Part D claims for 233 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 110 claims were for opioids.
Most prescribed
- Methylprednisolone114 claims
- Cefdinir102 claims
- Diazepam94 claims
- Promethazine Hcl70 claims
- Acetaminophen-Codeine53 claims
- Fluticasone Propionate46 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: $136.67
6 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 64,719 providers of this specialty with any payment received $841.65 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.
Emily Guzman Hays among 14,451 physician assistant records in California
Emily Guzman Hays 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 2023, is newer than 80% of them.
- NPI issued2023 · 80% of these records are older, 13% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2024 · 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).
186 physician assistant records list a practice address in Pomona
They are 186 of the 5,102 NPPES records with a practice address in Pomona, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Pomona → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jaison Fraizer, PA-CPomona, CA 917671073551263
- Peta-Gay Gihbsson, P.A.-CPomona, CA 917671295988095
- Yoodiy Gonzales, PAPomona, CA 917671942366281
- Jehan Goubran, PACPomona, CA 917671942413356
- Manuela Hess, PA-CPomona, CA 917671508019167
- Catherine Letherer, PA-CPomona, CA 917671265476485
- Joel LopezPomona, CA 917671659526911
- Erin Merchant, P.A.-C.Pomona, CA 917671619089117
Common questions
What is Emily Guzman Hays's NPI number?
Emily Guzman Hays's National Provider Identifier (NPI) is 1932985314, issued on Sep 1, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Emily Guzman Hays located?
The NPPES record lists a practice address at 1798 N Garey Ave, Pomona, CA, 91767. Phone: (909) 865-9500. Providers update this record themselves, so call before visiting.
How can I verify Emily Guzman Hays's license?
NPPES lists California license number PA63286, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Emily Guzman Hays prescribe under Medicare Part D?
In 2024, Emily Guzman Hays had 749 Medicare Part D claims for 233 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.