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

Mr. Carl William Christensen, LCSW-R

Clinical Social Worker in Rochester, NY · enumerated 2006 · practices at Joshua Jones Psychiatry, Pllc.

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

National Provider Identifier

1083683338

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Registry record

Entity type Individual (Type 1)

Name Mr. Carl William Christensen

Credential LCSW-R

Sex Male

Practice address Rochester, NY, 14607

Phone (585) 262-4303

Fax (585) 262-4363

Enumeration date Mar 17, 2006

Last updated in NPPES Jan 17, 2017

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License RO36366-1 (NY) Primary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License PENDING (NY) Secondary

Other identifiers

Identifier	Type	State	Issuer
103235FK	Other	NY	PREFERRED CARE
010036366	Other	NY	BLUE CHOICE - EXCELLUS
01410746	Medicaid	NY	-

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 Carl Christensen?

Carl Christensen is registered in NPPES with the primary taxonomy of Clinical Social Worker. 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 2017-01-17.