Individual Healthcare Provider
Steven C. Shifflett, MD
Provider's NPPES record last updated: January 11, 2023
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1558371641
- Primary Specialty
- Internal Medicine — Addiction Medicine
- Practice Location
- Lakeport, 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 21, 2026, 5:30 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
Internal Medicine
Addiction Medicine
Allopathic & Osteopathic Physicians
An internist doctor of osteopathy that specializes in the treatment of addiction disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Added Qualifications in the field of Addiction Medicine.
Taxonomy code 207RA0401X Personal Emergency Response Attendant
Emergency Medical Service Providers
Individuals that are specially trained to assist patients living at home with urgent/emergent situations. These individuals must be able to perform CPR and basic first aid and have sufficient counseling skills to allay fears and assist in working through processes necessary to resolve the crisis. Functions may include transportation to various facilities and businesses, contacting agencies to initiate remediation service or providing reassurance.
Taxonomy code 146D00000XEmergency Medicine
Allopathic & Osteopathic Physicians
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Taxonomy code 207P00000X
Provider-Reported License Information
- Internal Medicine (California)
- G58128
- Personal Emergency Response Attendant (California)
- G58128
- Emergency Medicine (California)
- G58128
Practice Locations
Practice Location
5176 Hill Road E.
Lakeport, California 95453-6300
Phone: (707) 262-5000
Record Information
- Enumeration Date
- August 9, 2006
- Provider's NPPES Record Last Updated
- January 11, 2023
- Certification Date
- January 11, 2023
- NPISignal NPPES Dataset
- August 2026
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