Dr. Timothy Paul Liszewski, D.C.

Dr. Timothy Paul Liszewski is a Nutrition Chiropractor provider (Chiropractor) practicing in Amsterdam, NY, registered in the NPPES registry with NPI 1851491500 since 2006. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1851491500
Entity type	Individual (Type 1)
Name	Dr. Timothy Paul Liszewski
Credential	D.C.
Sex	Male
Practice address	Amsterdam, NY, 12010
Phone	5188421828
Fax	5188428841
Enumeration date	2006-09-23
Last updated in NPPES	2025-09-11

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
111NN0400X	Neurology Chiropractor	Secondary	X004673-1	NY
111NN1001X	Nutrition Chiropractor	Primary	1063	SC

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
10001201	Other	NY	CDPHP

Copy-ready billing details

Provider: Timothy Liszewski, D.C.
NPI: 1851491500
Taxonomy: 111NN1001X (Nutrition Chiropractor)
Address: Amsterdam, NY, 12010

Verify this record

Cross-check NPI 1851491500 against the authoritative CMS record: view Dr. Timothy Paul Liszewski 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

What specialty is Timothy Liszewski?

Timothy Liszewski is registered in NPPES with the primary taxonomy of Nutrition Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-09-11.