Individual Healthcare Provider
William I Lin, MD
Provider's NPPES record last updated: April 2, 2026
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1235593104
- Primary Specialty
- Family Medicine
- Practice Location
- Hamilton, New York
- 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, 8:11 AM 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
Allopathic & Osteopathic Physicians
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Taxonomy code 207Q00000X
Provider-Reported License Information
- Family Medicine (New York)
- 300849
- Family Medicine (California)
- A158034
Practice Locations
Practice Location
1055 Madison Marketplace
Hamilton, New York 13346
Phone: (315) 825-3111
Additional Practice Location
18785 Brookhurst St Ste 101
Fountain Valley, California 92708-7300
Phone: (714) 378-0042
Fax: (714) 968-9129
Additional Practice Location
4950 Barranca Pkwy Ste 104
Irvine, California 92604-8644
Phone: (949) 857-1248
Fax: (949) 559-1165
Additional Practice Location
660 Baker St Ste A102
Costa Mesa, California 92626-4407
Phone: (714) 668-2505
Fax: (714) 668-2515
Additional Practice Location
221 3rd St W Bldg 1040
Jbsa Randolph, Texas 78150-4800
Phone: (830) 298-6538
Additional Practice Location
590 Mitchell Blvd Bldg 375
Laughlin Afb, Texas 78843-5242
Phone: (830) 298-6333
Record Information
- Enumeration Date
- April 7, 2016
- Provider's NPPES Record Last Updated
- April 2, 2026
- Certification Date
- April 2, 2026
- NPISignal NPPES Dataset
- August 2026
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