Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Ellen Rose Tabak, ACSW, M.A.

Clinical Social Worker in Bloomfield Hills, MI · enumerated 2005.

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

National Provider Identifier

1396743704

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Registry record

Entity type Individual (Type 1)

Name Mrs. Ellen Rose Tabak

Credential ACSW, M.A.

Sex Female

Practice address 101 W Long Lake Rd, Bloomfield Hills, MI, 48304

Phone (248) 480-4965

Fax (248) 480-4966

Enumeration date Jul 9, 2005

Last updated in NPPES Oct 7, 2019

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6801018478 (MI) Primary

Other identifiers

Identifier	Type	State	Issuer
382778765	Other	MI	CIGNA / VENDOR # 1139981
750910718	Other	MI	BLUE CROSS BLUE SHIELD
247423000	Other	-	MAGELLAN BEHAVIORAL OF MI
51940-01	Other	-	MT CARMEL BEHAVIORAL HLTH
9359445	Other	-	PRIVATE HEALTHCARE SYSTEM

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 → Validate an NPI →

Frequently asked questions

What specialty is Ellen Tabak?

Ellen Tabak 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 2019-10-07.