Michael D Heisinger

Michael D Heisinger is a Behavior Analyst provider (Behavior Analyst) practicing in Seattle, WA, registered in the NPPES registry with NPI 1043692635 since 2015.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1043692635
Entity type	Individual (Type 1)
Name	Michael D Heisinger
Sex	Male
Practice address	Seattle, WA, 98109
Phone	2063844142
Enumeration date	2015-06-19
Last updated in NPPES	2015-06-19

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
103K00000X	Behavior Analyst	Primary	CG60377028	WA

Copy-ready billing details

Provider: Michael Heisinger
NPI: 1043692635
Taxonomy: 103K00000X (Behavior Analyst)
Address: Seattle, WA, 98109

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1336576768	Alexander Kohorst	Individual	Behavior Analyst	Seattle, WA
1720498181	Jessica Anthony	Individual	Behavior Analyst	Seattle, WA
1952704546	Robin Finlayson	Individual	Behavior Analyst	Seattle, WA
1033590252	Mandi Woolsey	Individual	Behavior Analyst	Seattle, WA

Verify this record

Cross-check NPI 1043692635 against the authoritative CMS record: view Michael D Heisinger 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

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 Michael Heisinger?

Michael Heisinger is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2015-06-19.