NPI Portal NPI Lookup & Verification

Heidi Lynn Thacker

Heidi Lynn Thacker is a Speech-Language Pathologist provider (Speech-Language Pathologist) practicing in Fairfield, ME, registered in the NPPES registry with NPI 1639652670 since 2018.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1639652670
Entity type Individual (Type 1)
Name Heidi Lynn Thacker
Sex Female
Practice address Fairfield, ME, 04937
Phone 2074534200
Enumeration date 2018-09-14
Last updated in NPPES 2018-09-14

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
235Z00000X Speech-Language Pathologist Primary SP1011 ME
Copy-ready billing details
Provider: Heidi Thacker
NPI: 1639652670
Taxonomy: 235Z00000X (Speech-Language Pathologist)
Address: Fairfield, ME, 04937

Other providers at this practice address

NPI Name Type Specialty Location
1609083104 Maine School Administrative District No 49 Organization Local Education Agency (LEA) Fairfield, ME
1598921363 Msad 49 Organization Skilled Nursing Facility Fairfield, ME
1548574510 Lisa Hart Individual Occupational Therapist Fairfield, ME
1790099414 Nanette Bennett Individual Physical Therapist Fairfield, ME
1033425327 Susan Bilslend Individual Speech-Language Assistant Fairfield, ME
1356680722 Jennifer Giroux Individual Occupational Therapy Assistant Fairfield, ME
1629853387 Carly Mckeil Individual Occupational Therapy Assistant Fairfield, ME

Verify this record

Cross-check NPI 1639652670 against the authoritative CMS record: view Heidi Lynn Thacker on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How do I verify Heidi Thacker's NPI record?
Cross-check NPI 1639652670 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1639652670 active?
Yes — as of the latest NPPES snapshot, NPI 1639652670 is active (record last updated 2018-09-14).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2018-09-14.