Individual Healthcare Provider
Zachary Michael Zwolak, D.O.
Provider's NPPES record last updated: August 8, 2024
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1265695571
- Primary Specialty
- Family Medicine — Addiction Medicine
- Practice Location
- Ventura, California
- Sole Proprietor
- No
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 18, 2026, 12:41 PM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Family Medicine
Addiction Medicine
Allopathic & Osteopathic Physicians
A family medicine physician who specializes in the diagnosis and treatment of addictions.
Taxonomy code 207QA0401X Preventive Medicine
Addiction Medicine
Allopathic & Osteopathic Physicians
A physician engaged in the subspecialty practice of Addiction Medicine who specializes in the prevention, evaluation, diagnosis, treatment, and recovery of persons with the disease of addiction.
Taxonomy code 2083A0300X
Provider-Reported License Information
- Family Medicine (California)
- 20A12298
- Preventive Medicine (California)
- 20A12298
Practice Locations
Practice Location
300 Hillmont Ave
Ventura, California 93003-1651
Phone: (805) 652-6100
Additional Practice Location
1280 S Victoria Avenue #250
Ventura, California 93003-6521
Phone: (805) 351-0745
Fax: (805) 288-6744
Record Information
- Enumeration Date
- July 7, 2008
- Provider's NPPES Record Last Updated
- August 8, 2024
- Certification Date
- August 8, 2024
- NPISignal NPPES Dataset
- August 2026
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