Katherine Guardado, FNP
Family Nurse Practitioner · Northridge, CA
Katherine Guardado, FNP is a family nurse practitioner with a practice address in Northridge, California, and NPI 1821516535, issued on Sep 1, 2017. Check the license (California 95007215, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Guardado
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95007215 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18250 Roscoe Blvd Ste 200, Northridge, CA 91325
- Phone
- (818) 721-4800
- Enumerated
- Sep 1, 2017
- Record last updated
- May 13, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20240612001150); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 18250 Roscoe Blvd Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nathalie Gin, MDFamily Medicine Physician1578204814
Verify Katherine Guardado in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95007215Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family nurse practitioner in 2024
165 Medicare Part D claims for 24 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium23 claims
- Fluticasone Propionate14 claims
- Levothyroxine Sodium12 claims
- Metformin Hcl11 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: $1,194.29
19 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, 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
- EL Proyecto Del Barrio IncNorthridge, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Guardado among 16,966 family nurse practitioner records in California
Katherine Guardado, FNP 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 2017, is newer than 40% of them.
- NPI issued2017 · 40% of these records are older, 55% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2006 · median 2019 among the 6,793 with a school on file
- Record last updated2019 · 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).
67 family nurse practitioner records list a practice address in Northridge
They are 67 of the 2,598 NPPES records with a practice address in Northridge, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Northridge → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Carla Mae Cuisia-Zimmer, MSN FNPNorthridge, CA 913251144572025
- Gregorio De Grano, NPNorthridge, CA 913251417392176
- Victoria Isaacson, NPNorthridge, CA 913251104361484
- Maria Keklikian, FNP-CNorthridge, CA 913251174076483
- Riffat KhanNorthridge, CA 913251043704190
- Joanna Lebans, NPNorthridge, CA 913251871852111
- Kaixuan LuoNorthridge, CA 913251396288239
- Carey Mahoney, N.P.Northridge, CA 913251790082139
Common questions
What is Katherine Guardado, FNP's NPI number?
Katherine Guardado, FNP's National Provider Identifier (NPI) is 1821516535, issued on Sep 1, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Guardado, FNP located?
The NPPES record lists a practice address at 18250 Roscoe Blvd Ste 200, Northridge, CA, 91325. Phone: (818) 721-4800. Providers update this record themselves, so call before visiting.
How can I verify Katherine Guardado, FNP's license?
NPPES lists California license number 95007215, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Guardado, FNP prescribe under Medicare Part D?
In 2024, Katherine Guardado, FNP had 165 Medicare Part D claims for 24 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.