Timothy Grayson Ernst, DC

Timothy Grayson Ernst is a Chiropractor provider (Chiropractor) practicing in Madison, NJ, registered in the NPPES registry with NPI 1669946836 since 2019. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1669946836
Entity type	Individual (Type 1)
Name	Timothy Grayson Ernst
Credential	DC
Sex	Male
Practice address	Madison, NJ, 07940
Phone	9103304677
Enumeration date	2019-01-21
Last updated in NPPES	2019-01-21

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
111N00000X	Chiropractor	Primary	38MC00754900	NJ

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

Copy-ready billing details

Provider: Timothy Ernst, DC
NPI: 1669946836
Taxonomy: 111N00000X (Chiropractor)
Address: Madison, NJ, 07940

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1699333120	Katarzyna Ernst	Individual	Pediatric Chiropractor	Madison, NJ

Verify this record

Cross-check NPI 1669946836 against the authoritative CMS record: view Timothy Grayson Ernst 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 Ernst?

Timothy Ernst is registered in NPPES with the primary taxonomy of 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 2019-01-21.