Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. WILLIAM GARDINER SEAVEY MD
NPI 1831145432
Internal Medicine - Geriatric Medicine in Sacramento, CA

Active since May 25, 2006
4860 Y ST, SUITE 3900, SACRAMENTO, CA 95817(916) 734-5496(916) 456-9350 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. William Gardiner Seavey Md NPPES

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

DR. WILLIAM GARDINER SEAVEY MD (NPI 1831145432) is an individual geriatric medicine provider in Sacramento, California, licensed in California (00A611630) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1831145432
Entity TypeIndividualMale
Primary Taxonomy207RG0300X
Provider Legal NameDR. WILLIAM GARDINER SEAVEYCredential: MD
Location Address4860 Y ST, SUITE 3900Sacramento, CA 95817-2307
Mailing Address5960 11th AveSacramento, CA 95820-2432
Fax(916) 456-9350
Sole ProprietorNo
Enumeration DateMay 25, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1831145432 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License Licensed in CA · 00A611630
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
4860 Y ST, Sacramento, CA 95817

Other Identifiers 1

Medicaid00A611630CA

Other Providers at the Same Location NPPES 20

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

Student in an Organized Health Care Education/Training Program
4860 Y ST, SUITE 3850
SACRAMENTO, CA 95817
Internal Medicine
4860 Y ST, SUITE 0101
SACRAMENTO, CA 95817
Internal Medicine
4860 Y ST, SUITE 0100
SACRAMENTO, CA 95817
Physical Medicine & Rehabilitation
4860 Y ST, SUITE 3850
SACRAMENTO, CA 95817
Obstetrics & Gynecology
4860 Y ST
SACRAMENTO, CA 95817
General Acute Care Hospital
4860 Y ST
SACRAMENTO, CA 95817
Obstetrics & Gynecology (Maternal & Fetal Medicine)
4860 Y ST
SACRAMENTO, CA 95817
Internal Medicine (Cardiovascular Disease)
4860 Y ST, SUITE 2820
SACRAMENTO, CA 95817

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 William Seavey's NPI number?

The NPI number for William Seavey is 1831145432. It was assigned to this individual provider in the NPPES registry on May 25, 2006.

Where is William Seavey located?

William Seavey practices at 4860 Y St Suite 3900, Sacramento, CA 95817. The listed phone number is (916) 734-5496.

What is William Seavey's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

When was this NPI record last updated?

The NPPES record for William Seavey was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.