Kathreen Dee Castro, NP
Family Nurse Practitioner · Los Angeles, CA
Kathreen Dee Castro, NP is a family nurse practitioner with a practice address in Los Angeles, California, and NPI 1043602857, issued on Mar 3, 2015. Check the license (California 95000820, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathreen Dee Castro
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95000820 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1005 E Washington Blvd Ste A, Los Angeles, CA 90021
- Phone
- (323) 233-3100
- Enumerated
- Mar 3, 2015
- Record last updated
- Jun 4, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (323) 233-4100
- Medicaid ID
- 1093023277 CA
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 1005 E Washington Blvd Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathreen Dee Castro in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95000820Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average family nurse practitioner in 2024
389 Medicare Part D claims for 74 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium31 claims
- Amlodipine Besylate23 claims
- Metformin Hcl22 claims
- Losartan Potassium19 claims
- Lisinopril18 claims
- Glipizide14 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: $109.41
5 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals 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.
Kathreen Dee Castro among 16,966 family nurse practitioner records in California
Kathreen Dee Castro, NP 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 2015, is newer than 31% of them.
- NPI issued2015 · 31% of these records are older, 65% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- 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).
1,103 family nurse practitioner records list a practice address in Los Angeles
They are 1,103 of the 69,537 NPPES records with a practice address in Los Angeles, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Los Angeles → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Christopher Bacon, FNP-CEast Los Angeles, CA 900221205347341
- Adriana Cedro, N.P.-CLos Angeles, CA 900221316391576
- Catharine Cheung, NURSE PRACTITIONERLos Angeles, CA 900221659613230
- Soojung Choi, FNPLos Angeles, CA 900201801457437
- Gladis Funes, MSN/FNP-BCLos Angeles, CA 900221457543530
- Martha Garcia, F.N.P.Los Angeles, CA 900221275799066
- Kate Han, NPLos Angeles, CA 900201831899608
- Jungwoo KimLos Angeles, CA 900201184439465
Common questions
What is Kathreen Dee Castro, NP's NPI number?
Kathreen Dee Castro, NP's National Provider Identifier (NPI) is 1043602857, issued on Mar 3, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Kathreen Dee Castro, NP located?
The NPPES record lists a practice address at 1005 E Washington Blvd Ste A, Los Angeles, CA, 90021. Phone: (323) 233-3100. Providers update this record themselves, so call before visiting.
How can I verify Kathreen Dee Castro, NP's license?
NPPES lists California license number 95000820, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Kathreen Dee Castro, NP prescribe under Medicare Part D?
In 2024, Kathreen Dee Castro, NP had 389 Medicare Part D claims for 74 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.