Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Donald Zall, LICSW

Clinical Social Worker in Concord, MA · enumerated 2006.

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

National Provider Identifier

1093739070

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Registry record

Entity type Individual (Type 1)

Name Donald Zall

Credential LICSW

Sex Male

Practice address 86 Baker Avenue Extension, Concord, MA, 01742

Phone (978) 287-9380

Fax (978) 287-6199

Enumeration date Jul 26, 2006

Last updated in NPPES Mar 6, 2009

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 103183 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
P01509	Other	MA	BLUE CROSS

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

How do I verify Donald Zall's NPI record?

Cross-check NPI 1093739070 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1093739070 active?

Yes, as of the latest NPPES snapshot, NPI 1093739070 is active (record last updated 2009-03-06).

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Marie Darsch Clinical Social Worker · Concord, MA NPI 1043263668

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-06.