Contact Us

UCS Hotline · 24 Hours

Call 1330

Universal Coverage Scheme helpline — eligibility checks, hospital referrals, benefit enquiries, and complaints. Available 24/7 in Thai and English.

Get in Touch

For inquiries, complaints, grievances, or questions about your health insurance rights, please contact us:

facebook.com/NHSOInter
Line : @nhso
1330@nhso.go.th

HEAD OFFICE

National Health Security Office

Address: National Health Security Office
The Government Complex, Building B
120 Moo 3 Chaengwattana Road
Lak Si District, Bangkok 10210
Phone: 02-141-4000 (Office hours)
Fax: 02-143-9730 - 1
Email: Internhso@nhso.go.th
Office Hours: Monday – Friday
08:30 – 16:30 (closed on public holidays)

REGIONAL OFFICES

13 NHSO Sub-Branches nationwide

1

Sub-Branch 1
NHSO Chiang Mai

Responsible area: Chiang Mai, Lamphun, Lampang, Phrae, Nan, Phayao, Chiang Rai, Mae Hong Son

saraban1@nhso.go.th 053-285-355
2

Sub-Branch 2
NHSO Phitsanulok

Responsible area: Uttaradit, Tak, Sukhothai, Phitsanulok, Phetchabun

saraban2@nhso.go.th 055-247-000
3

Sub-Branch 3
NHSO Nakhon Sawan

Responsible area: Chai Nat, Nakhon Sawan, Uthai Thani, Kamphaeng Phet, Phichit

saraban3@nhso.go.th 056-371-540
4

Sub-Branch 4
NHSO Saraburi

Responsible area: Nonthaburi, Pathum Thani, Ayutthaya, Ang Thong, Lopburi, Singburi, Saraburi, Nakhon Nayok

saraban4@nhso.go.th 036-213-205
5

Sub-Branch 5
NHSO Ratchaburi

Responsible area: Ratchaburi, Suphan Buri, Kanchanaburi, Nakhon Pathom, Samut Sakhon, Samut Songkhram, Phetchaburi, Prachuap Khiri Khan

saraban5@nhso.go.th 032-332-590
6

Sub-Branch 6
NHSO Rayong

Responsible area: Samut Prakan, Chonburi, Rayong, Chanthaburi, Trat, Chachoengsao, Prachinburi, Sa Kaeo

saraban6@nhso.go.th 038-864-313
7

Sub-Branch 7
NHSO Khon Kaen

Responsible area: Khon Kaen, Maha Sarakham, Roi Et, Kalasin

saraban7@nhso.go.th 043-365-200
8

Sub-Branch 8
NHSO Udon Thani

Responsible area: Bueng Kan, Nong Bua Lamphu, Udon Thani, Loei, Nong Khai, Sakon Nakhon, Nakhon Phanom

saraban8@nhso.go.th 042-325-681
9

Sub-Branch 9
NHSO Nakhon Ratchasima

Responsible area: Nakhon Ratchasima, Buriram, Surin, Chaiyaphum

saraban9@nhso.go.th 044-248-870
10

Sub-Branch 10
NHSO Ubon Ratchathani

Responsible area: Sisaket, Ubon Ratchathani, Yasothon, Amnat Charoen, Mukdahan

saraban10@nhso.go.th 045-240-591
11

Sub-Branch 11
NHSO Surat Thani

Responsible area: Nakhon Si Thammarat, Krabi, Phang Nga, Phuket, Surat Thani, Ranong, Chumphon

saraban11@nhso.go.th 077-274-811
12

Sub-Branch 12
NHSO Songkhla

Responsible area: Songkhla, Satun, Trang, Phatthalung, Pattani, Yala, Narathiwat

saraban12@nhso.go.th 074-233-888
13

Sub-Branch 13
NHSO Bangkok

Responsible area: Bangkok Metropolitan Area

saraban13@nhso.go.th 02-142-0911

Contact Us

Get in Touch

HEAD OFFICE

National Health Security Office

National Health Security Office

REGIONAL OFFICES

13 NHSO Sub-Branches nationwide

Sub-Branch 1 NHSO Chiang Mai

Sub-Branch 2 NHSO Phitsanulok

Sub-Branch 3 NHSO Nakhon Sawan

Sub-Branch 4 NHSO Saraburi

Sub-Branch 5 NHSO Ratchaburi

Sub-Branch 6 NHSO Rayong

Sub-Branch 7 NHSO Khon Kaen

Sub-Branch 8 NHSO Udon Thani

Sub-Branch 9 NHSO Nakhon Ratchasima

Sub-Branch 10 NHSO Ubon Ratchathani

Sub-Branch 11 NHSO Surat Thani

Sub-Branch 12 NHSO Songkhla

Sub-Branch 13 NHSO Bangkok

Sub-Branch 1
NHSO Chiang Mai

Sub-Branch 2
NHSO Phitsanulok

Sub-Branch 3
NHSO Nakhon Sawan

Sub-Branch 4
NHSO Saraburi

Sub-Branch 5
NHSO Ratchaburi

Sub-Branch 6
NHSO Rayong

Sub-Branch 7
NHSO Khon Kaen

Sub-Branch 8
NHSO Udon Thani

Sub-Branch 9
NHSO Nakhon Ratchasima

Sub-Branch 10
NHSO Ubon Ratchathani

Sub-Branch 11
NHSO Surat Thani

Sub-Branch 12
NHSO Songkhla

Sub-Branch 13
NHSO Bangkok