Miriam Avena-Mascareno, FNP-C
Family Nurse Practitioner · Petaluma, CA
Miriam Avena-Mascareno, FNP-C is a family nurse practitioner with a practice address in Petaluma, California, and NPI 1629797246, issued on Aug 25, 2022. Check the license (California 95021379, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Miriam Avena-Mascareno
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95021379 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1179 N Mcdowell Blvd, Petaluma, CA 94954
- Phone
- (707) 559-7500
- Enumerated
- Aug 25, 2022
- Record last updated
- Feb 13, 2023
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 1179 N Mcdowell Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Miriam Avena-Mascareno in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95021379Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average family nurse practitioner in 2024
382 Medicare Part D claims for 71 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Lisinopril22 claims
- Famotidine16 claims
- Atorvastatin Calcium13 claims
- Losartan Potassium13 claims
- Metformin Hcl13 claims
- Sertraline Hcl12 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.
Miriam Avena-Mascareno among 16,966 family nurse practitioner records in California
Miriam Avena-Mascareno, 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 2022, is newer than 68% of them.
- NPI issued2022 · 68% of these records are older, 25% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2023 · 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).
50 family nurse practitioner records list a practice address in Petaluma
They are 50 of the 1,856 NPPES records with a practice address in Petaluma, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Petaluma → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Julie Anna Bautista, F.N.PPetaluma, CA 949541275547085
- Jessica Flinders, FNPPetaluma, CA 949541073769055
- Genevieve Foster-Freedman, FNPPetaluma, CA 949541912123787
- Donna Geiger, FNPPetaluma, CA 949541245440064
- Jessicca Jarrett, FNPPetaluma, CA 949541891911707
- Meliea Lane, FNPPetaluma, CA 949541700993334
- Teresa Lurie, NPPetaluma, CA 949541245418730
- Cheryl Negrin, NPPetaluma, CA 949541558577692
Common questions
What is Miriam Avena-Mascareno, FNP-C's NPI number?
Miriam Avena-Mascareno, FNP-C's National Provider Identifier (NPI) is 1629797246, issued on Aug 25, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Miriam Avena-Mascareno, FNP-C located?
The NPPES record lists a practice address at 1179 N Mcdowell Blvd, Petaluma, CA, 94954. Phone: (707) 559-7500. Providers update this record themselves, so call before visiting.
How can I verify Miriam Avena-Mascareno, FNP-C's license?
NPPES lists California license number 95021379, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Miriam Avena-Mascareno, FNP-C prescribe under Medicare Part D?
In 2024, Miriam Avena-Mascareno, FNP-C had 382 Medicare Part D claims for 71 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.