S.No.	DISTRICT	HUD	Block	RD Block	PHC	TYPE
1	Tiruvallur	Tiruvallur	Ammayarkuppam	R.K.Pet	Ammayarkuppam	Block Main PHC
2	Tiruvallur	Tiruvallur	Ammayarkuppam	R.K.Pet	Balapuram	Addl. PHC
3	Tiruvallur	Tiruvallur	Ammayarkuppam	R.K.Pet	R.K.Pet	Upgraded PHC
4	Tiruvallur	Tiruvallur	Ammayarkuppam	R.K.Pet	Venganur	Addl. PHC
5	Tiruvallur	Tiruvallur	Athimanjeripet	Pallipattu	Athimanjeripet	Upgraded Block PHC
6	Tiruvallur	Tiruvallur	Athimanjeripet	Pallipattu	Sorakkapettai	Addl. PHC
7	Tiruvallur	Tiruvallur	Athimanjeripet	Pallipattu	Velliagaram	Addl. PHC
8	Tiruvallur	Tiruvallur	Beerakuppam	Tiruttani	Beerakuppam	Upgraded Block PHC
9	Tiruvallur	Tiruvallur	Beerakuppam	Tiruttani	Maddur	Addl. PHC
10	Tiruvallur	Tiruvallur	Beerakuppam	Tiruttani	Melkesavarajapet	Addl. PHC
11	Tiruvallur	Tiruvallur	Budur	Sholavaram	Alamathi	Addl. PHC
12	Tiruvallur	Tiruvallur	Budur	Sholavaram	Arani	Addl. PHC
13	Tiruvallur	Tiruvallur	Budur	Sholavaram	Budur	Upgraded Block PHC
14	Tiruvallur	Tiruvallur	Budur	Sholavaram	Padianallur	Addl. PHC
15	Tiruvallur	Tiruvallur	Budur	Sholavaram	Panchatti	Addl. PHC
16	Tiruvallur	Tiruvallur	Eguvarpalayam	Gummidipoondi	Aarambakkam	Addl. PHC
17	Tiruvallur	Tiruvallur	Eguvarpalayam	Gummidipoondi	Eguvarpalayam	Upgraded Block PHC
18	Tiruvallur	Tiruvallur	Eguvarpalayam	Gummidipoondi	Kannakottai	Addl. PHC
19	Tiruvallur	Tiruvallur	Eguvarpalayam	Gummidipoondi	Kavarapettai	Addl. PHC
20	Tiruvallur	Tiruvallur	Eguvarpalayam	Gummidipoondi	Madarapakkam	Addl. PHC
21	Tiruvallur	Tiruvallur	Eguvarpalayam	Gummidipoondi	Sunnambukulam	Addl. PHC
22	Tiruvallur	Tiruvallur	Katchur	Poondi	Katchur	Upgraded Block PHC
23	Tiruvallur	Tiruvallur	Katchur	Poondi	Pattarai Perumbudur	Addl. PHC
24	Tiruvallur	Tiruvallur	Katchur	Poondi	Poondi	Addl. PHC
25	Tiruvallur	Tiruvallur	Kollumedu	Villivakkam	Ayapakkam	Addl. PHC
26	Tiruvallur	Tiruvallur	Kollumedu	Villivakkam	Kathavoor	Addl. PHC
27	Tiruvallur	Tiruvallur	Kollumedu	Villivakkam	Kollumedu	Upgraded Block PHC
28	Tiruvallur	Tiruvallur	Kollumedu	Villivakkam	Morai	Addl. PHC
29	Tiruvallur	Tiruvallur	Minjur	Minjur	Athipattu	Addl. PHC
30	Tiruvallur	Tiruvallur	Minjur	Minjur	Devampat	Addl. PHC
31	Tiruvallur	Tiruvallur	Minjur	Minjur	Kattur	Addl. PHC
32	Tiruvallur	Tiruvallur	Minjur	Minjur	Medhur	Addl. PHC
33	Tiruvallur	Tiruvallur	Minjur	Minjur	Minjur	Upgraded Block PHC
34	Tiruvallur	Tiruvallur	Naravarikuppam	Puzhal	Naravarikuppam	Upgraded Block PHC
35	Tiruvallur	Tiruvallur	Naravarikuppam	Puzhal	Vilangadupakkam	Addl. PHC
36	Tiruvallur	Tiruvallur	Perambakkam	Kadambattur	Kadambattur	Addl. PHC
37	Tiruvallur	Tiruvallur	Perambakkam	Kadambattur	Papparambakkam	Addl. PHC
38	Tiruvallur	Tiruvallur	Perambakkam	Kadambattur	Perambakkam	Upgraded Block PHC
39	Tiruvallur	Tiruvallur	Perambakkam	Kadambattur	Ulundai	Addl. PHC
40	Tiruvallur	Tiruvallur	Perambakkam	Kadambattur	Vidaiyur	Addl. PHC
41	Tiruvallur	Tiruvallur	Periapalayam	Ellapuram	Enampakkam	Addl. PHC
42	Tiruvallur	Tiruvallur	Periapalayam	Ellapuram	Guruvoyal	Addl. PHC
43	Tiruvallur	Tiruvallur	Periapalayam	Ellapuram	Latchivakkam	Addl. PHC
44	Tiruvallur	Tiruvallur	Periapalayam	Ellapuram	Periapalayam	Upgraded Block PHC
45	Tiruvallur	Tiruvallur	Periapalayam	Ellapuram	Vengal	Addl. PHC
46	Tiruvallur	Tiruvallur	Poonimangadu	Thiruvelangadu	Kanakammachathram	Addl. PHC
47	Tiruvallur	Tiruvallur	Poonimangadu	Thiruvelangadu	Poonimangadu	Block Main PHC
48	Tiruvallur	Tiruvallur	Poonimangadu	Thiruvelangadu	Thiruvelangadu	Upgraded PHC
49	Tiruvallur	Tiruvallur	Thiruverkadu Mpty.	Thiruverkadu Mpty	Thiruverkadu	Urban PHC
50	Tiruvallur	Tiruvallur	Tiruttani Mpty.	Tiruttani Mpty	Thiruthani	Urban PHC
51	Tiruvallur	Tiruvallur	Tiruvallur Mpty.	Tiruvallur Mpty	Tiruvallur	Urban PHC
52	Tiruvallur	Tiruvallur	Velliyur	Tiruvellore @ Ikkadu	Kalyanakuppam	Addl. PHC
53	Tiruvallur	Tiruvallur	Velliyur	Tiruvellore @ Ikkadu	Perumalpattu	Addl. PHC
54	Tiruvallur	Tiruvallur	Velliyur	Tiruvellore @ Ikkadu	Puliyur	Addl. PHC