Janet Ma, (MSN, FNP)
Family Nurse Practitioner · Tustin, CA
Janet Ma, (MSN, FNP) is a family nurse practitioner with a practice address in Tustin, California, and NPI 1144868050, issued on Dec 11, 2019. Check the license (California 95013164, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Janet Ma
- Credential
- (MSN, FNP)
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95013164 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1422 Edinger Ave Ste 130, Tustin, CA 92780
- Phone
- (714) 628-9342
- Enumerated
- Dec 11, 2019
- Record last updated
- May 5, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 1422 Edinger Ave Ste 130
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Luong, NPFamily Nurse Practitioner1235897190
Verify Janet Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95013164Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average family nurse practitioner in 2024
1,572 Medicare Part D claims for 351 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 172 claims were for opioids.
Most prescribed
- Methotrexate133 claims
- Prednisone129 claims
- Hydroxychloroquine Sulfate121 claims
- Hydrocodone-Acetaminophen105 claims
- Gabapentin85 claims
- Duloxetine Hcl81 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: $988.47
44 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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.
Janet Ma among 16,966 family nurse practitioner records in California
Janet Ma, (MSN, FNP) 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 2019, is newer than 50% of them.
- NPI issued2019 · 50% of these records are older, 44% 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).
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 Janet Ma, (MSN, FNP)'s NPI number?
Janet Ma, (MSN, FNP)'s National Provider Identifier (NPI) is 1144868050, issued on Dec 11, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Janet Ma, (MSN, FNP) located?
The NPPES record lists a practice address at 1422 Edinger Ave Ste 130, Tustin, CA, 92780. Phone: (714) 628-9342. Providers update this record themselves, so call before visiting.
How can I verify Janet Ma, (MSN, FNP)'s license?
NPPES lists California license number 95013164, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Janet Ma, (MSN, FNP) prescribe under Medicare Part D?
In 2024, Janet Ma, (MSN, FNP) had 1,572 Medicare Part D claims for 351 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.