Doctor profile · Federal record

Dr. Mark Sontag, MD

Physical Medicine & Rehabilitation Physician · Redwood City, CA

  • NPI 1891854568
  • 20 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
363 Main St, Suite C
Redwood City, CA 940631729
(650) 306-9490
fax (650) 306-0250

Credentials & registration

NPPES · NUCC
NPI registered
December 2006 — 20 yrs on file
Profile last updated
May 28, 2009
Specialty taxonomy
208100000X — NUCC code
State license (1)
California #G052976

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1891854568. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$114
Transactions
5
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Curonix LLC 2 $44.18
ABBVIE INC. 1 $31.61
Collegium Pharmaceutical, Inc. 1 $22.32
SI-BONE, INC. 1 $15.55

By nature of payment

Food and Beverage
$114

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Sontag's medical specialty?
Dr. Mark Sontag practices Physical Medicine & Rehabilitation Physician in Redwood City, CA.
Where does Dr. Mark Sontag practice?
Dr. Mark Sontag practices at 363 Main St, Redwood City, CA 940631729. Office phone: 6503069490.
What is Dr. Mark Sontag's NPI?
Dr. Mark Sontag's National Provider Identifier (NPI) is 1891854568, issued by NPPES.