NPI Portal NPI Lookup & Verification

Thomas Bubnack

Thomas Bubnack is a Social Worker provider (Social Worker) practicing in Guilderland, NY, registered in the NPPES registry with NPI 1528238359 since 2008. Practices at Sparc (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1528238359
Entity type Individual (Type 1)
Name Thomas Bubnack
Sex Male
Practice address Guilderland, NY, 12084
Phone 5184526769
Fax 5184526706
Enumeration date 2008-03-07
Last updated in NPPES 2008-03-07

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
104100000X Social Worker Primary 040909 NY
Copy-ready billing details
Provider: Thomas Bubnack
NPI: 1528238359
Taxonomy: 104100000X (Social Worker)
Address: Guilderland, NY, 12084

Other providers at this practice address

NPI Name Type Specialty Location
1427150218 Maureen Roeth Individual Family Nurse Practitioner Guilderland, NY
1477780880 Cailin George Individual Mental Health Counselor Guilderland, NY
1922237163 Grace Adepoju Individual Psychiatric/Mental Health Nurse Practitioner Guilderland, NY
1578897922 Ashley Bowery Individual Substance Abuse Rehabilitation Facility Guilderland, NY
1376867952 Monica Dean Individual Addiction (Substance Use Disorder) Counselor Guilderland, NY
1386983872 Elizabeth Liotta-Rosenthal Individual Addiction (Substance Use Disorder) Counselor Guilderland, NY
1316286271 Sandra Cummings Individual Social Worker Guilderland, NY
1427452630 Sparc Organization Addiction (Substance Use Disorder) Counselor Guilderland, NY

Verify this record

Cross-check NPI 1528238359 against the authoritative CMS record: view Thomas Bubnack 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 Thomas Bubnack?
Thomas Bubnack is registered in NPPES with the primary taxonomy of Social Worker. 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 2008-03-07.