Karen Castellano, FNP-BC
Family Nurse Practitioner · West Covina, CA
Karen Castellano, FNP-BC is a family nurse practitioner with a practice address in West Covina, California, and NPI 1821695552, issued on Oct 6, 2020. Check the license (California 95012925, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Castellano
- Credential
- FNP-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95012925 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1115 S Sunset Ave, West Covina, CA 91790
- Phone
- (626) 962-4011
- Enumerated
- Oct 6, 2020
- Record last updated
- Mar 1, 2023
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 1115 S Sunset Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cara Baker, MDAnesthesiology Physician1063660462
- Vincent BalitonEmergency Registered Nurse1578139408
- Noel Benedict Bautista, MDStudent in an Organized Health Care Education/Training Program1972436376
- Gilbert Benitez, PAEmergency Medicine Physician1184678245
Verify Karen Castellano in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95012925Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average family nurse practitioner in 2024
729 Medicare Part D claims for 128 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium69 claims
- Amlodipine Besylate38 claims
- Lisinopril28 claims
- Metformin Hcl28 claims
- Levothyroxine Sodium24 claims
- Simvastatin24 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: $22.83
1 payment: food and beverage; the largest payer was Novo Nordisk 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.
Karen Castellano among 16,966 family nurse practitioner records in California
Karen Castellano, FNP-BC 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 2020, is newer than 56% of them.
- NPI issued2020 · 56% of these records are older, 38% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2023 · 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).
62 family nurse practitioner records list a practice address in West Covina
They are 62 of the 2,450 NPPES records with a practice address in West Covina, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in West Covina → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Oyinade Akhigbe, NPWest Covina, CA 917901467730051
- Julie Alcid, NPWest Covina, CA 917901740695519
- Javanne Brooks, FNPWest Covina, CA 917901760884654
- Nelia Bulos, NPWest Covina, CA 917901528493418
- Caroline Caspe, MSN, FNP-CWest Covina, CA 917901053754952
- Hazel Evalle, FNP-CWest Covina, CA 917901992123806
- Karyn Francis, N.P.West Covina, CA 917901811925050
- Imelda Jimenez, NPWest Covina, CA 917901477753721
Common questions
What is Karen Castellano, FNP-BC's NPI number?
Karen Castellano, FNP-BC's National Provider Identifier (NPI) is 1821695552, issued on Oct 6, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Karen Castellano, FNP-BC located?
The NPPES record lists a practice address at 1115 S Sunset Ave, West Covina, CA, 91790. Phone: (626) 962-4011. Providers update this record themselves, so call before visiting.
How can I verify Karen Castellano, FNP-BC's license?
NPPES lists California license number 95012925, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Castellano, FNP-BC prescribe under Medicare Part D?
In 2024, Karen Castellano, FNP-BC had 729 Medicare Part D claims for 128 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.