NPI Portal NPI Lookup & Verification

Dr. David William Dowis, M.D.

Dr. David William Dowis is a General Practice Physician provider (General Practice) practicing in Fresno, CA, registered in the NPPES registry with NPI 1659337749 since 2006. The credential MD stands for Doctor of Medicine. Practices at Fresno County Eoc Health Services Clinic (listed at the same practice address in NPPES).

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NPI 1659337749
Entity type Individual (Type 1)
Name Dr. David William Dowis
Credential M.D.
Sex Male
Practice address 1047 R ST, Fresno, CA, 93721
Phone 5594991690
Fax 5594991697
Enumeration date 2006-04-26
Last updated in NPPES 2025-09-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
172V00000X Community Health Worker Secondary G32293 CA
208D00000X General Practice Physician Primary G 32293 CA
332U00000X Home Delivered Meals Secondary G32293 CA
251X00000X Supports Brokerage Agency Secondary G32293 CA
171M00000X Case Manager/Care Coordinator Secondary G32293 CA

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details
Provider: David Dowis, M.D.
NPI: 1659337749
Taxonomy: 208D00000X (General Practice Physician)
Address: 1047 R ST, Fresno, CA, 93721

Other providers at this practice address

NPI Name Type Specialty Location
1164403044 Fresno County Eoc Health Services Clinic Organization Ambulatory Family Planning Facility Fresno, CA
1134107980 Leticia Tuite Individual Physician Assistant Fresno, CA
1811031958 Elaine Jimenez-Obeso Individual Physician Assistant Fresno, CA
1487862710 Nancy Griffith Individual Obstetrics & Gynecology Nurse Practitioner Fresno, CA

Verify this record

Cross-check NPI 1659337749 against the authoritative CMS record: view Dr. David William Dowis on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is David Dowis?
David Dowis is registered in NPPES with the primary taxonomy of General Practice Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-09-08.