NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Leonid Kruglyak, D.C.

Chiropractor in Clifton, NJ · enumerated 2006 · practices at The Center for Chiropractic and Rehabilitation, LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1215024278

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Registry record

Entity type Individual (Type 1)
Name Dr. Leonid Kruglyak
Credential D.C.
Sex Male
Practice address Clifton, NJ, 07011
Fax (973) 772-6426
Enumeration date Oct 9, 2006
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License MC4655 (NJ) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
P413627 Other NJ OXFORD
6616607 Medicaid NJ -
3129678 Other NJ AETNA US HEALTHCARE

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.

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Frequently asked questions

What specialty is Leonid Kruglyak?
Leonid Kruglyak 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.