NPI Portal NPI Lookup & Verification

Mr. Mark Allen Sullivan, MBA, PT, ATC

Mr. Mark Allen Sullivan is a Physical Therapist provider (Physical Therapist) practicing in Suffield, CT, registered in the NPPES registry with NPI 1306874227 since 2006. The credential PT stands for Physical Therapist. Practices at Suffield Psychology Associates (listed at the same practice address in NPPES).

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NPI 1306874227
Entity type Individual (Type 1)
Name Mr. Mark Allen Sullivan
Credential MBA, PT, ATC
Sex Male
Practice address 133 MOUNTAIN RD, SUITE 2B., Suffield, CT, 06078
Phone 8602545982
Enumeration date 2006-06-29
Last updated in NPPES 2025-09-11

Taxonomy & licenses

Taxonomy code Specialty Primary License State
225100000X Physical Therapist Primary 003846 CT
2251S0007X Sports Physical Therapist Secondary 003846 CT
2251X0800X Orthopedic Physical Therapist Secondary 003846 CT
2255A2300X Athletic Trainer Secondary 116 MA

PT — Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

Copy-ready billing details
Provider: Mark Sullivan, MBA, PT, ATC
NPI: 1306874227
Taxonomy: 225100000X (Physical Therapist)
Address: 133 MOUNTAIN RD, SUITE 2B., Suffield, CT, 06078

Other providers at this practice address

NPI Name Type Specialty Location
1154402899 Joanne Lertora Individual Psychologist Suffield, CT
1396815833 Kathryn Tkacz Individual Marriage & Family Therapist Suffield, CT
1588735682 Suffield Psychology Associates Organization Psychologist Suffield, CT
1487715272 Carol Kagel Individual Psychologist Suffield, CT
1104987239 Steven Kagel Individual Psychologist Suffield, CT
1275675787 Stacey Nath-Vinick Individual Dentist Suffield, CT
1962545400 Alan Nath Individual Dentist Suffield, CT
1407097462 Yvonne Wutka Individual Marriage & Family Therapist Suffield, CT

Verify this record

Cross-check NPI 1306874227 against the authoritative CMS record: view Mr. Mark Allen Sullivan 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 Mark Sullivan?
Mark Sullivan is registered in NPPES with the primary taxonomy of Physical Therapist. 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 2025-09-11.