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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. DAVID SIEGEL M.D.
NPI 1023092590
Internal Medicine in Mather, CA

Active since November 30, 2005
10535 HOSPITAL WAY, MATHER, CA 95655(916) 843-7096(916) 366-5475 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. David Siegel M.d. NPPES

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

DR. DAVID SIEGEL M.D. (NPI 1023092590) is an individual internal medicine provider in Mather, California, licensed in California (G39933) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1023092590
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. DAVID SIEGELCredential: M.D.
Location Address10535 HOSPITAL WAYMather, CA 95655-4200
Mailing Address10535 Hospital WayMather, CA 95655-4200 · (916) 843-7096 · Fax (916) 366-5475
Phone(916) 843-7096
Fax(916) 366-5475
Sole ProprietorNo
Enumeration DateNovember 30, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1023092590 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G39933
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
10535 HOSPITAL WAY, Mather, CA 95655
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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.

ALAYNA HUYNH NGUYEN
Pharmacist
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 843-7000
MS. JANE CHAN RPH
Pharmacist
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 366-5321
DR. PATRICIA L. DALTON M.D.
Specialist
10535 HOSPITAL WAY, DEPT. OF VA SACRAMENTO MEDICAL CENTER
MATHER, CA 95655
Sacramento County (916) 843-7000
SHIN SHAN CHO
Dietitian, Registered
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 843-9022
BRENDA JACKSON LMFT
Marriage & Family Therapist
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 843-2918
JEFFREY JON METER MD
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 843-7324
ERICKA RAMIREZ-SOLIS PH.D.
Psychologist (Clinical)
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (800) 382-8387
BRITTNEY REED
Nurse Practitioner
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 843-7000

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 David Siegel's NPI number?

The NPI number for David Siegel is 1023092590. It was assigned to this individual provider in the NPPES registry on November 30, 2005.

Where is David Siegel located?

David Siegel practices at 10535 Hospital Way, Mather, CA 95655. The listed phone number is (916) 843-7096.

What is David Siegel's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for David Siegel was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.