Carmen Guadalupe Walker, NURSE PRACTITIONER
Nurse Practitioner · Orange, CA
Carmen Guadalupe Walker, NURSE PRACTITIONER is a nurse practitioner with a practice address in Orange, California, and NPI 1699098608, issued on Mar 4, 2010. Check the license (California 18564, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Carmen Guadalupe Walker
- Credential
- NURSE PRACTITIONER
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 18564 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 W LA Veta Ave, Orange, CA 92868
- Phone
- (714) 734-6200
- Enumerated
- Mar 4, 2010
- Record last updated
- Mar 4, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (714) 734-6231
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 1000 W LA Veta Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Carmen Guadalupe Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 18564Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average nurse practitioner in 2024
210 Medicare Part D claims for 73 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole28 claims
- Dexamethasone20 claims
- Ciprofloxacin Hcl12 claims
- Prochlorperazine Maleate12 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: $995.00
23 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 38,884 providers of this specialty with any payment received $791.64 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.
Carmen Guadalupe Walker among 8,223 nurse practitioner records in California
Carmen Guadalupe Walker, NURSE PRACTITIONER is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 32% of them.
- NPI issued2010 · 32% of these records are older, 66% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2010 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
147 nurse practitioner records list a practice address in Orange
They are 147 of the 13,245 NPPES records with a practice address in Orange, and 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Orange → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Mahnaz Baradar, N.P.Orange, CA 928681225113293
- Rita Ceja, NPOrange, CA 928681033201496
- Aiping Dai, NPOrange, CA 928681417053026
- Kathleen Doan, R.N., N.P.Orange, CA 928681447295001
- Susana Ertac, RN, NPOrange, CA 928681265547335
- Jennifer Hillyer, NPOrange, CA 928681154403335
- Veronica Kang, PMHNPOrange, CA 928681801815998
- Joon Myung, NPOrange, CA 928681518997030
Common questions
What is Carmen Guadalupe Walker, NURSE PRACTITIONER's NPI number?
Carmen Guadalupe Walker, NURSE PRACTITIONER's National Provider Identifier (NPI) is 1699098608, issued on Mar 4, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Carmen Guadalupe Walker, NURSE PRACTITIONER located?
The NPPES record lists a practice address at 1000 W LA Veta Ave, Orange, CA, 92868. Phone: (714) 734-6200. Providers update this record themselves, so call before visiting.
How can I verify Carmen Guadalupe Walker, NURSE PRACTITIONER's license?
NPPES lists California license number 18564, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Carmen Guadalupe Walker, NURSE PRACTITIONER prescribe under Medicare Part D?
In 2024, Carmen Guadalupe Walker, NURSE PRACTITIONER had 210 Medicare Part D claims for 73 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.