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

Mrs. Tanya Joyce Rock, LMSW

Clinical Social Worker in Atlanta, MI · enumerated 2005.

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

National Provider Identifier

1427055680

Verified

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Registry record

Entity type Individual (Type 1)

Name Mrs. Tanya Joyce Rock

Credential LMSW

Sex Female

Practice address Atlanta, MI, 49709

Phone (989) 785-4444

Fax (989) 785-4444

Enumeration date Jul 2, 2005

Last updated in NPPES Nov 13, 2016

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 6801066400 (MI) Primary

Other identifiers

Identifier	Type	State	Issuer
1726	Medicaid	MI	-
BLACK-0013	Medicaid	MA	-
119754(MHS)	Other	MI	VALUE OPTIONS
800008513	Other	MA	RAILROAD MEDICARE PROVIDE
COUN04-99298	Medicaid	MI	-
80-0-89-3855-0	Other	MI	BCBS-MICHIGAN

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 Tanya Rock?

Tanya Rock 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-11-13.