Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Austin Heine, L.C.S.W., P.P.S.C.

School Social Worker in Grass Valley, CA · enumerated 2007 · practices at Nevada Jt. Union High School District.

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

National Provider Identifier

1457483919

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Registry record

Entity type Individual (Type 1)

Name Mark Austin Heine

Credential L.C.S.W., P.P.S.C.

Sex Male

Practice address 11645 Ridge Rd, Grass Valley, CA, 95945

Phone (530) 273-4431

Fax (530) 271-5943

Enumeration date Mar 11, 2007

Last updated in NPPES Mar 1, 2024

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary

101YS0200X School Counselor Behavioral Health & Social Service Providers Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 29603 (CA) Secondary

1041S0200X School Social Worker Behavioral Health & Social Service Providers · License 29603 (CA) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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 NPI 1457483919 active?

Yes, as of the latest NPPES snapshot, NPI 1457483919 is active (record last updated 2024-03-01).

How do I verify Mark Heine's NPI record?

Cross-check NPI 1457483919 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Nevada Jt. Union High School District Local Education Agency (LEA) · Grass Valley, CA NPI 1619190071 Jenifer Layton Marriage & Family Therapist · Grass Valley, CA NPI 1689874281 Tammi Gerrald School Psychologist · Grass Valley, CA NPI 1528825387 Carrie St. Thomas School Registered Nurse · Grass Valley, CA NPI 1609633478 Allison North School Psychologist · Grass Valley, CA NPI 1134987803 Allison Rivers Clinical Social Worker · Grass Valley, CA NPI 1659241008

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-01.