1. Home
  2. Directory
  3. California
  4. San Rafael
  5. Physician Assistant
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HUMBERTO ROBERT INZUNZA PA-C
NPI 1528356441
Physician Assistant in San Rafael, CA

Active since July 12, 2011PECOS Enrolled
999 3RD ST STE A, SAN RAFAEL, CA 94901(415) 448-1500 Get Directions Write a Review

NPPES record last updated: August 10, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 10, 2026, Feb 10, 2020, Jan 15, 2020 and 3 more (6 updates tracked since 2017).

About Humberto Robert Inzunza Pa-c NPPES

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

HUMBERTO ROBERT INZUNZA PA-C (NPI 1528356441) is an individual physician assistant in San Rafael, California, licensed in California (PA21592) and active in the NPI registry since July 2011. He is enrolled in Medicare PECOS and maintains a secondary practice location in Mesa.

NPPES Registry Identity

NPI1528356441
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameHUMBERTO ROBERT INZUNZACredential: PA-C
Location Address999 3RD ST STE ASan Rafael, CA 94901-3113
Mailing Address5116 S Salk LnMesa, AZ 85212-8005 · (661) 221-2552
Phone(415) 448-1500
Sole ProprietorYes
Enumeration DateJuly 12, 2011
Last NPPES UpdateAugust 10, 20266 updates tracked since enumeration
NPPES CertifiedAugust 10, 2026
✔ NPI 1528356441 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 8

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses✔ Licensed in CA · PA21592✔ Licensed in AZ · 6604
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Also ListedHealth EducatorTaxonomy 174H00000X
Also ListedFamily MedicineTaxonomy 207Q00000X · License 6604 (AZ)
Also ListedFamily Medicine · Geriatric MedicineTaxonomy 207QG0300X · License 6604 (AZ)
Also ListedPediatrics · Adolescent MedicineTaxonomy 2080A0000X · License 6604 (AZ)
Also ListedHome HealthTaxonomy 251E00000X · License 6604 (AZ)
Also ListedClinic/Center · Urgent CareTaxonomy 261QU0200X · License 6604 (AZ)
Also ListedPhysician Assistant · SurgicalTaxonomy 363AS0400X · License PA21592 (CA)
999 3RD ST STE A, San Rafael, CA 94901
Open in Google Maps ↗

Secondary Practice Location 1

Location 15116 S Salk LnMesa, AZ 85212-8005 · Phone (661) 221-2552

Other Identifiers 1

Medicaid254343AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Imperial Insurance Companies, Inc..Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Humberto Robert Inzunza Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 94901 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
$104.67 typical visit price
range $69.07 – $202.63
Typical copayment $26.16 (range $17.26 – $50.65)
Most-billed visit code 99203
Established Patient
$85.00 typical visit price
range $23.44 – $166.64
Typical copayment $21.25 (range $5.86 – $41.66)
Most-billed visit code 99213
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

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

CLAUDIA AWAMLEH FNP
Nurse Practitioner (Family)
999 3RD ST STE A
SAN RAFAEL, CA 94901
Marin County (415) 448-1500

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Humberto Inzunza's NPI number?

The NPI number for Humberto Inzunza is 1528356441. It was assigned to this individual provider in the NPPES registry on July 12, 2011.

Where is Humberto Inzunza located?

Humberto Inzunza practices at 999 3rd St Ste A, San Rafael, CA 94901. The listed phone number is (415) 448-1500.

What is Humberto Inzunza's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Humberto Inzunza enrolled in Medicare?

Yes. Humberto Inzunza is registered in the Medicare PECOS enrollment system.

What insurance does Humberto Inzunza accept?

Health plans from Imperial Insurance Companies, Inc. list Humberto Inzunza as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Humberto Inzunza was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.