Sylvia Kostro

Sylvia Kostro is a Behavior Analyst provider (Behavior Analyst) practicing in Warren, MI, registered in the NPPES registry with NPI 1356044911 since 2023.

✓ Active NPI ✓ Valid NPI checksum

NPI	1356044911
Entity type	Individual (Type 1)
Name	Sylvia Kostro
Sex	Female
Practice address	12200 E 13 MILE RD UNIT 200, Warren, MI, 48093
Phone	5865731810
Enumeration date	2023-03-23
Last updated in NPPES	2023-03-23

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
103K00000X	Behavior Analyst	Primary	—	—

Copy-ready billing details

Provider: Sylvia Kostro
NPI: 1356044911
Taxonomy: 103K00000X (Behavior Analyst)
Address: 12200 E 13 MILE RD UNIT 200, Warren, MI, 48093

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1609442771	Colin Miller	Individual	Clinical Social Worker	Warren, MI
1831962869	Devon Gruskin	Individual	Mental Health Counselor	Warren, MI

Verify this record

Cross-check NPI 1356044911 against the authoritative CMS record: view Sylvia Kostro 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 Sylvia Kostro?

Sylvia Kostro 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 2023-03-23.