Ashley Brigette Guzman, FNP-C
Family Nurse Practitioner · Fontana, CA
Ashley Brigette Guzman, FNP-C is a family nurse practitioner with a practice address in Fontana, California, and NPI 1194208744, issued on Sep 10, 2018. Check the license (California 95009625, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ashley Brigette Guzman
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95009625 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9961 Sierra Ave, Fontana, CA 92335
- Phone
- (909) 427-3000
- Enumerated
- Sep 10, 2018
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200409002423); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 9961 Sierra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Marla Abrolat, MDPediatrics Physician1164593133
- Eduardo Acosta, MDPediatrics Physician1497803324
- Michael Adair, MDFamily Medicine Physician1780732651
- Berneva Adams, MDObstetrics & Gynecology Physician1376602987
Verify Ashley Brigette 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 95009625Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.8 times the Medicare Part D claims of the average family nurse practitioner in 2024
4,895 Medicare Part D claims for 2,118 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.
Most prescribed
- Prednisolone Acetate2,551 claims
- Ofloxacin1,452 claims
- Polymyxin B Sul-Trimethoprim310 claims
- Ketorolac Tromethamine282 claims
- Gatifloxacin142 claims
- Diclofenac Sodium138 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: $69.39
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 99,489 providers of this specialty with any payment received $650.95 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
- Southern California Permanente Medical GroupRedlands, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashley Brigette Guzman among 16,966 family nurse practitioner records in California
Ashley Brigette Guzman, FNP-C is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 45% of them.
- NPI issued2018 · 45% of these records are older, 50% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2018 · median 2019 among the 6,793 with a school on file
- Record last updated2021 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
69 family nurse practitioner records list a practice address in Fontana
They are 69 of the 3,012 NPPES records with a practice address in Fontana, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Fontana → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Leslie Burgess, NPFontana, CA 923351265893317
- Beverly ChiongFontana, CA 923351447619804
- Marie Cho, NURSE PRACTITIONERFontana, CA 923351265562425
- Fides Escobal, FNPFontana, CA 923351063793065
- Lesley HallFontana, CA 923351891167672
- Catherine Jauregui-Husun, F.N.P.Fontana, CA 923351851584171
- Natalie Johnson, NP-CFontana, CA 923351154096170
- Denise Mah, FNP-BCFontana, CA 923351083114508
Common questions
What is Ashley Brigette Guzman, FNP-C's NPI number?
Ashley Brigette Guzman, FNP-C's National Provider Identifier (NPI) is 1194208744, issued on Sep 10, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Ashley Brigette Guzman, FNP-C located?
The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-3000. Providers update this record themselves, so call before visiting.
How can I verify Ashley Brigette Guzman, FNP-C's license?
NPPES lists California license number 95009625, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ashley Brigette Guzman, FNP-C prescribe under Medicare Part D?
In 2024, Ashley Brigette Guzman, FNP-C had 4,895 Medicare Part D claims for 2,118 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.