Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Melissa Ann Knowlton, MSPT
Physical Therapist in Old Lyme, CT · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1699047662
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Registry record
Entity type Individual (Type 1)
Name Mrs. Melissa Ann Knowlton
Credential MSPT
Sex Female
Practice address 19 Halls Rd, Suite 201, Old Lyme, CT, 06371
Phone (860) 434-5524
Fax (860) 434-3262
Enumeration date Feb 6, 2012
Last updated in NPPES Feb 6, 2012
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 007676 (CT) Primary
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.
Frequently asked questions
What specialty is Melissa Knowlton?
Melissa Knowlton 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.
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.
Other providers at this practice address
Browse all → Terrence Doherty Family Medicine Physician · Old Lyme, CT NPI 1255435558 Thomas Semenza Optometrist · Old Lyme, CT NPI 1457458036 Christine Semenza Vision Therapy Optometrist · Old Lyme, CT NPI 1588759823 Jay Graves Family Medicine Physician · Old Lyme, CT NPI 1083771745 Suresh D'Mello Family Medicine Physician · Old Lyme, CT NPI 1144387838 Susan Lang Physical Therapist · Old Lyme, CT NPI 1568529238 Olaf Ogland Psychiatry Physician · Old Lyme, CT NPI 1134255771 Elizabeth Wojcik Durable Medical Equipment & Medical Supplies · Old Lyme, CT NPI 1811027402
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-06.