JOANNA DIEL-MARTIN NP
NPI 1932759461
Nurse Practitioner in Petaluma, CA

Q: What is Joanna Diel-martin's NPI number?

The NPI number for Joanna Diel-martin is 1932759461. It was assigned to this individual provider in the NPPES registry on September 17, 2019. The provider is also known as Joanna Diel Np.

Q: What is Joanna Diel-martin's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Active since September 17, 2019PECOS EnrolledAccepts Medicare Assignment

1179 N MCDOWELL BLVD, PETALUMA, CA 94954(707) 559-7500(707) 559-7620 Get Directions Write a Review

NPPES record last updated: May 22, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 22, 2026, Jul 10, 2023, Feb 8, 2022 and 1 more (4 updates tracked since 2019).

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About Joanna Diel-martin Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOANNA DIEL-MARTIN NP (NPI 1932759461) is an individual nurse practitioner in Petaluma, California, licensed in California (95012708) and active in the NPI registry since September 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1932759461

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameJOANNA DIEL-MARTINCredential: NP

Location Address1179 N MCDOWELL BLVDPetaluma, CA 94954-6559

Mailing Address1 Embarcadero Ctr Ste 1900San Francisco, CA 94111-3723

Phone(707) 559-7500

Fax(707) 559-7620

Sole ProprietorNo

Medical School CMSOtherGraduated 2019

Enumeration DateSeptember 17, 2019

Last NPPES UpdateMay 22, 20264 updates tracked since enumeration

NPPES CertifiedMay 22, 2026

✔ NPI 1932759461 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in CA · 95012708

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

1179 N MCDOWELL BLVD, Petaluma, CA 94954

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Other Names 1

Professional Name (2)Joanna Diel Np

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Joanna Diel-martin Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7012342926

PECOS Enrollment IDI20260506002212

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94954 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$96.16 typical visit price

range $63.04 – $187.01

Typical copayment $24.04 (range $15.76 – $46.75)

Most-billed visit code 99203

Established Patient

$109.88 typical visit price

range $21.02 – $153.40

Typical copayment $27.47 (range $5.25 – $38.35)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

REBECCA KATZ FINNEMORE MD

Family Medicine