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

Dr. Allan Jerome Blau, LICSW

Mental Health Counselor in Mountainside, NJ · enumerated 2018.

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

National Provider Identifier

1902384191

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Allan Jerome Blau

Credential LICSW

Sex Male

Practice address Mountainside, NJ, 07092

Phone (908) 543-0220

Enumeration date Jul 31, 2018

Last updated in NPPES Jul 31, 2018

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 107977 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
107911	Other	MA	COMMONWEALTH OF MASSACHUSETTS DIVISION OF PROFESSIONAL LICENSURE

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

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.

What specialty is Allan Blau?

Allan Blau is registered in NPPES with the primary taxonomy of Mental Health Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-07-31.