Kei Martin, APRN, FNP-C
Family Nurse Practitioner · Tustin, CA
Kei Martin, APRN, FNP-C is a family nurse practitioner with a practice address in Tustin, California, and NPI 1972117992, issued on Sep 8, 2020. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kei Martin
- Credential
- APRN, FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- APRN11008013 FL
Self-reported in NPPES; status is on the state search - Practice location
- 140 Centennial Way, Tustin, CA 92780
- Phone
- (949) 594-0446
- Enumerated
- Sep 8, 2020
- Record last updated
- Sep 27, 2022
- Medicare enrollment
- Enrolled (PECOS I20210203003122); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Verify Kei Martin 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
73% fewer Medicare Part D claims than the average family nurse practitioner in 2024
349 Medicare Part D claims for 242 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Hyclate31 claims
- Cephalexin28 claims
- Nitrofurantoin Mono-Macro25 claims
- Amoxicillin-Clavulanate Potass23 claims
- Triamcinolone Acetonide20 claims
- Prednisone17 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 3 group practices
- Dispatchhealth Washington PCSeattle, WA
- Dispatchhealth-CA, PCMonrovia, CA
- True North Health Navigation LLCDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kei Martin among 16,966 family nurse practitioner records in California
Kei Martin, APRN, FNP-C 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 fileYes · 40% of these records are
- Graduated2019 · median 2019 among the 6,793 with a school on file
- Record last updated2022 · 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).
56 family nurse practitioner records list a practice address in Tustin
They are 56 of the 2,221 NPPES records with a practice address in Tustin, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Tustin → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Cynthia Cohen, RN,FNP-CTustin, CA 927801902891252
- Sol Estrella, FNP-BCTustin, CA 927801265976021
- Amanda Imai, NPTustin, CA 927801508195231
- Bernice Jacob, FNPTustin, CA 927801215472949
- Sharron Krueger, RNPTustin, CA 927801851684237
- Holly Leo, NPTustin, CA 927801467663666
- Julie Lopes, RN, NPTustin, CA 927801821358979
- Rema Nair, NPTustin, CA 927801881081966
Common questions
What is Kei Martin, APRN, FNP-C's NPI number?
Kei Martin, APRN, FNP-C's National Provider Identifier (NPI) is 1972117992, issued on Sep 8, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Kei Martin, APRN, FNP-C located?
The NPPES record lists a practice address at 140 Centennial Way, Tustin, CA, 92780. Phone: (949) 594-0446. Providers update this record themselves, so call before visiting.
How can I verify Kei Martin, APRN, FNP-C's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Kei Martin, APRN, FNP-C prescribe under Medicare Part D?
In 2024, Kei Martin, APRN, FNP-C had 349 Medicare Part D claims for 242 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.