Doctor profile · Federal record

Dr. Chatchawin Assanasen, MD

Pediatric Hematology & Oncology Physician · Pediatric Hematology & Oncology Physician · San Antonio, TX

  • NPI 1205852779
  • MIPS 82.7 / 100 · 2023
  • 20 yrs on file
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
333 N Santa Rosa St, 8Th Floor
San Antonio, TX 782073108
(210) 704-2187
fax (210) 704-3566
Mailing address
7703 Floyd Curl Dr, Mc7977
San Antonio, TX 782293901

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
June 22, 2011
Specialty taxonomy
2080P0207X — NUCC code
State licenses (2)
Texas #N9167 · Florida #ME80084
Medicaid
TX #220350701

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1205852779. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$17,678
Transactions
13
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Alexion Pharmaceuticals, INC. 10 $17,607.08
Pierre Fabre Pharmaceuticals, INC. 1 $25.33
Servier Pharmaceuticals LLC 1 $24.21
Jazz Pharmaceuticals INC. 1 $21.72

By nature of payment

Compensation for Services Other Than Consulting, Including Serving As Faculty or As A Speaker at A Venue Other Than A Continuing Education Program
$17,160
Food and Beverage
$417
Travel and Lodging
$102

Frequently asked questions

Auto-generated from federal data
What is Dr. Chatchawin Assanasen's medical specialty?
Dr. Chatchawin Assanasen practices Pediatric Hematology & Oncology Physician in San Antonio, TX.
Where does Dr. Chatchawin Assanasen practice?
Dr. Chatchawin Assanasen practices at 333 N Santa Rosa St, San Antonio, TX 782073108. Office phone: 2107042187.
What is Dr. Chatchawin Assanasen's NPI?
Dr. Chatchawin Assanasen's National Provider Identifier (NPI) is 1205852779, issued by NPPES.