Stacy Ann Guzman, PA-C
Physician Assistant · Buttonwillow, CA
Stacy Ann Guzman, PA-C is a physician assistant with a practice address in Buttonwillow, California, and NPI 1326298530, issued on Sep 24, 2008. Check the license (California PA19933, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stacy Ann Guzman
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA19933 CA
Self-reported in NPPES; status is on the state search - Practice location
- 277 E. Front Steet, Buttonwillow, CA 93206
- Phone
- (661) 764-5211
- Enumerated
- Sep 24, 2008
- Record last updated
- Jan 25, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111011000738); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Stacy Ann Guzman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA19933Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average physician assistant in 2024
1,811 Medicare Part D claims for 202 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Metformin Hcl135 claims
- Atorvastatin Calcium123 claims
- Lisinopril114 claims
- Amlodipine Besylate90 claims
- Levothyroxine Sodium79 claims
- Omeprazole56 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: $28.15
1 payment: food and beverage; the largest payer was Exact Sciences Corporation. 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.
Bills Medicare through one group practice
- Omni Family HealthTaft, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stacy Ann Guzman among 14,451 physician assistant records in California
Stacy Ann Guzman, PA-C 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 2008, is newer than 22% of them.
- NPI issued2008 · 22% of these records are older, 75% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2008 · median 2018 among the 7,214 with a school on file
- Record last updated2012 · 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).
Physician Assistant providers in California
There are 14,451 physician assistant records in California.
The 8 physician assistant records with the nearest ZIP codes
- Kristin LehrAvenal, CA 932041063049781
- Brianna Myers, PA-CArvin, CA 932031508276098
- Donald Ervin, PA-CCoalinga, CA 932101952410623
- Seth FallenCoalinga, CA 932101861181703
- Barry Swanson, P.A.Corcoran, CA 932121396880324
- Florentino Valdez, PHYSICIAN ASSISTANTCorcoran, CA 932121689701567
- Ricki Barnes, PA-CDelano, CA 932151376970863
- Courtney Grayson, PA-CDelano, CA 932151689240780
Common questions
What is Stacy Ann Guzman, PA-C's NPI number?
Stacy Ann Guzman, PA-C's National Provider Identifier (NPI) is 1326298530, issued on Sep 24, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Stacy Ann Guzman, PA-C located?
The NPPES record lists a practice address at 277 E. Front Steet, Buttonwillow, CA, 93206. Phone: (661) 764-5211. Providers update this record themselves, so call before visiting.
How can I verify Stacy Ann Guzman, PA-C's license?
NPPES lists California license number PA19933, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Stacy Ann Guzman, PA-C prescribe under Medicare Part D?
In 2024, Stacy Ann Guzman, PA-C had 1,811 Medicare Part D claims for 202 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.