Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Joanna Diel-Martin, NP

Individual provider Nurse Practitioner · NPI 1932759461

Joanna Diel-Martin, NP is a Nurse Practitioner in Petaluma, California. Qualified in 2019, 7 years ago. Practices with Petaluma Health Center Inc, a 76-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
7
Licensed in
CA
In the registry since
2019
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

1179 N McDowell Blvd
Petaluma, CA 94954-6559
Phone: (707) 559-7500
Fax: (707) 559-7620
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2145 University Ave, Berkeley, CA 94704-1025 — (888) 663-6331

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 95012708 (CA)

Record details

NPI number1932759461
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedSeptember 17, 2019
Last updated in NPPESMay 22, 2026
Certification dateMay 22, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Petaluma Health Center Inc — 76 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Petaluma