Dr. Thomas Steven Killian

Dr. Thomas Steven Killian is a Professional Counselor provider (Counselor) practicing in Montclair, NJ, registered in the NPPES registry with NPI 1710674437 since 2023.

✓ Active NPI ✓ Valid NPI checksum

NPI	1710674437
Entity type	Individual (Type 1)
Name	Dr. Thomas Steven Killian
Sex	Male
Practice address	18-20 LACKAWANNA PLZ STE 200, Montclair, NJ, 07042
Phone	2015095323
Enumeration date	2023-04-21
Last updated in NPPES	2024-06-04

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
101YP2500X	Professional Counselor	Primary	37PC00844100	NJ

Copy-ready billing details

Provider: Thomas Killian
NPI: 1710674437
Taxonomy: 101YP2500X (Professional Counselor)
Address: 18-20 LACKAWANNA PLZ STE 200, Montclair, NJ, 07042

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1639320252	Michael Mccann	Individual	Clinical Social Worker	Montclair, NJ
1902486368	Alex Thompson	Individual	Clinical Social Worker	Montclair, NJ
1639839087	Madalyn Diabetes Nutrition LLC	Organization	Registered Dietitian	Montclair, NJ
1932852662	Christina Andino	Individual	Clinical Social Worker	Montclair, NJ
1871230243	Stephanie Mora	Individual	Clinical Social Worker	Montclair, NJ
1073232815	Forward Motion Counseling Services LLC	Organization	Clinical Social Worker	Montclair, NJ
1013633593	Mind & Body Healing Therapy Center, LLC	Organization	Clinical Social Worker	Montclair, NJ
1417644782	Yensy Graham	Individual	Marriage & Family Therapist	Montclair, NJ

Verify this record

Cross-check NPI 1710674437 against the authoritative CMS record: view Dr. Thomas Steven Killian on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Thomas Killian?

Thomas Killian is registered in NPPES with the primary taxonomy of Professional Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-06-04.