Nancy Do Nguyen Downey, NP
Family Nurse Practitioner · El Cajon, CA
Nancy Do Nguyen Downey, NP is a family nurse practitioner with a practice address in El Cajon, California, and NPI 1578051017, issued on Apr 30, 2018. Check the license (California 95008318, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nancy Do Nguyen Downey
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95008318 CA
Self-reported in NPPES; status is on the state search - Practice location
- 875 EL Cajon Blvd, El Cajon, CA 92020
- Phone
- (626) 662-4100
- Enumerated
- Apr 30, 2018
- Record last updated
- Aug 7, 2025
- Medicare enrollment
- Enrolled (PECOS I20180816001342); 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 875 EL Cajon Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Dorreen Danesh, MDHospice and Palliative Medicine (Internal Medicine) Physician1902432826
Verify Nancy Do Nguyen Downey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95008318Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family nurse practitioner in 2024
45 Medicare Part D claims, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
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: $55.64
1 payment: food and beverage; the largest payer was Dexcom, 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
- Centro DE Salud DE LA Comunidad DE San Ysidro, Inc.El Cajon, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nancy Do Nguyen Downey among 16,966 family nurse practitioner records in California
Nancy Do Nguyen Downey, 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 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
- Graduated2017 · median 2019 among the 6,793 with a school on file
- Record last updated2025 · 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).
54 family nurse practitioner records list a practice address in El Cajon
They are 54 of the 3,277 NPPES records with a practice address in El Cajon, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in El Cajon → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Marisol Balistreri, NPEl Cajon, CA 920201649608324
- Brittney Blais, NP-CEl Cajon, CA 920201952852808
- Rebecca Carroll, FNPEl Cajon, CA 920201982962759
- Carol Coloma, FNPEl Cajon, CA 920201528098217
- Maricel DelacruzEl Cajon, CA 920201700314978
- Kathleen Fitzgerald, DNPEl Cajon, CA 920201306357686
- Jaydee Rose Geluz, NPEl Cajon, CA 920201861854622
- Annie HanEl Cajon, CA 920201376085290
Common questions
What is Nancy Do Nguyen Downey, NP's NPI number?
Nancy Do Nguyen Downey, NP's National Provider Identifier (NPI) is 1578051017, issued on Apr 30, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Nancy Do Nguyen Downey, NP located?
The NPPES record lists a practice address at 875 EL Cajon Blvd, El Cajon, CA, 92020. Phone: (626) 662-4100. Providers update this record themselves, so call before visiting.
How can I verify Nancy Do Nguyen Downey, NP's license?
NPPES lists California license number 95008318, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Nancy Do Nguyen Downey, NP prescribe under Medicare Part D?
In 2024, Nancy Do Nguyen Downey, NP had 45 Medicare Part D claims; 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.