Tiffany Walker, NP
Adult Health Nurse Practitioner · Orange, CA
Tiffany Walker, NP is an adult health nurse practitioner with a practice address in Orange, California, and NPI 1730683319, issued on Mar 20, 2018. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tiffany Walker
- Credential
- NP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- APRN002775 NV
Self-reported in NPPES; status is on the state search - Practice location
- 1100 W Town And Country RD Ste 1600, Orange, CA 92868
- Phone
- (833) 402-5803
- Enumerated
- Mar 20, 2018
- Record last updated
- Jul 8, 2025
- Medicaid ID
- 1730683319 NV
- Medicare enrollment
- Enrolled (PECOS I20180326001149); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 1,405 in California → Look up another NPI →
Also registered at 1100 W Town And Country RD Ste 1600
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Victorie Herr, FNP MSNFamily Nurse Practitioner1205470929
Verify Tiffany Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
875 Medicare Part D claims for 551 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Azithromycin69 claims
- Prednisone48 claims
- Amoxicillin-Clavulanate Potass29 claims
- Albuterol Sulfate Hfa26 claims
- Lisinopril26 claims
- Paxlovid26 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.
Bills Medicare through one group practice
- Metro Infectious Disease Consultants LLCLas Vegas, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tiffany Walker among 1,405 adult health nurse practitioner records in California
Tiffany Walker, NP is one of 1,405 adult health nurse practitioner records with a practice address in California. 56% 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 77% of them.
- NPI issued2018 · 77% of these records are older, 19% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileYes · 31% of these records are
- Graduated2017 · median 2013 among the 441 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in California
There are 1,405 adult health nurse practitioner records in California.
All 1,405 in California → Every provider in Orange → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Jane Brugman, NPOrange, CA 928681225496086
- Stefan DunauskasOrange, CA 928681891151148
- Elaine Mary Joyce Go, NP, MSNOrange, CA 928681386738748
- Paula Gull, RNPOrange, CA 928681154476000
- Jeoung Kang, NPOrange, CA 928681306324850
- Christine Master, N.P.Orange, CA 928681144424904
- Segismundo Millan, NP - ADULT GERIATRICOrange, CA 928681831605641
- Darcie Peterson, NPOrange, CA 928681114287620
Common questions
What is Tiffany Walker, NP's NPI number?
Tiffany Walker, NP's National Provider Identifier (NPI) is 1730683319, issued on Mar 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Tiffany Walker, NP located?
The NPPES record lists a practice address at 1100 W Town And Country RD Ste 1600, Orange, CA, 92868. Phone: (833) 402-5803. Providers update this record themselves, so call before visiting.
How can I verify Tiffany Walker, NP's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Tiffany Walker, NP prescribe under Medicare Part D?
In 2024, Tiffany Walker, NP had 875 Medicare Part D claims for 551 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.