Maria Eugenia Massella Hernandez, NP
Family Medicine Physician · Oakland, CA
Maria Eugenia Massella Hernandez, NP is a family medicine physician with a practice address in Oakland, California, and NPI 1962917377, issued on Dec 7, 2017. Check the license (California 95007332, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Maria Eugenia Massella Hernandez
- Credential
- NP
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 95007332 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3451 E. 12TH Street, Oakland, CA 94601
- Phone
- (510) 535-3500
- Enumerated
- Dec 7, 2017
- Record last updated
- Dec 7, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (510) 535-4225
- Medicare enrollment
- Enrolled (PECOS I20181101000873); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 3451 E. 12TH Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edessa Diaz, FNPFamily Nurse Practitioner1427264563
- Jeannette Hilgert, LCSWClinical Social Worker1720231178
- Ian Hoffman, MDFamily Medicine Physician1457550956
Verify Maria Eugenia Massella Hernandez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 95007332Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average family medicine physician in 2024
597 Medicare Part D claims for 92 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium48 claims
- Lisinopril28 claims
- Finasteride27 claims
- Gabapentin27 claims
- Simvastatin25 claims
- Mirtazapine22 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
- LA Clinica DE LA Raza IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria Eugenia Massella Hernandez among 17,133 family medicine physician records in California
Maria Eugenia Massella Hernandez, NP is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 79% of them.
- NPI issued2017 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2017 · median 2005 among the 10,652 with a school on file
- Record last updated2017 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Oakland → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Paul Bayard, MDOakland, CA 946011922101237
- Barbara Benzwi, MDOakland, CA 946011063512317
- Jaime Cortes, MDOakland, CA 946011265587778
- Asano Fertig, MDOakland, CA 946011013017268
- Christine Fratino, DOOakland, CA 946011841398542
- Thomas Halligan, MDOakland, CA 946011457454761
- Irene Kelly, MDOakland, CA 946011386747509
- Jill LeggOakland, CA 946011881771624
Common questions
What is Maria Eugenia Massella Hernandez, NP's NPI number?
Maria Eugenia Massella Hernandez, NP's National Provider Identifier (NPI) is 1962917377, issued on Dec 7, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Maria Eugenia Massella Hernandez, NP located?
The NPPES record lists a practice address at 3451 E. 12TH Street, Oakland, CA, 94601. Phone: (510) 535-3500. Providers update this record themselves, so call before visiting.
How can I verify Maria Eugenia Massella Hernandez, NP's license?
NPPES lists California license number 95007332, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Maria Eugenia Massella Hernandez, NP prescribe under Medicare Part D?
In 2024, Maria Eugenia Massella Hernandez, NP had 597 Medicare Part D claims for 92 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.