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DR. NELS MARCUS THYGESON M.D.
NPI 1114189495
Internal Medicine - Gastroenterology in San Rafael, CA

Active since June 27, 2008
24 MOORING RD, SAN RAFAEL, CA 94901(651) 269-1404 Get Directions Write a Review

NPPES record last updated: May 31, 2016. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Nels Marcus Thygeson M.d. NPPES

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

DR. NELS MARCUS THYGESON M.D. (NPI 1114189495) is an individual gastroenterology provider in San Rafael, California, licensed in California (G54492) and active in the NPI registry since June 2008.

NPPES Registry Identity

NPI1114189495
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. NELS MARCUS THYGESONCredential: M.D.
Location Address24 MOORING RDSan Rafael, CA 94901-3515
Mailing Address24 Mooring RdSan Rafael, CA 94901-3515 · (651) 269-1404
Phone(651) 269-1404
Sole ProprietorYes
Enumeration DateJune 27, 2008
Last NPPES UpdateMay 31, 2016
✔ NPI 1114189495 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in CA · G54492✔ Licensed in MN · 47465
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
24 MOORING RD, San Rafael, CA 94901
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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 Nels Thygeson's NPI number?

The NPI number for Nels Thygeson is 1114189495. It was assigned to this individual provider in the NPPES registry on June 27, 2008.

Where is Nels Thygeson located?

Nels Thygeson practices at 24 Mooring Rd, San Rafael, CA 94901. The listed phone number is (651) 269-1404.

What is Nels Thygeson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Nels Thygeson was last updated on May 31, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.