Peter Eustace Cotsonas, DDS

Peter Eustace Cotsonas is a Orthodontics and Dentofacial Orthopedics Dentistry provider (Dentist) practicing in Weymouth, MA, registered in the NPPES registry with NPI 1467473389 since 2006. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum

NPI	1467473389
Entity type	Individual (Type 1)
Name	Peter Eustace Cotsonas
Credential	DDS
Sex	Male
Practice address	884 WASHINGTON ST, Weymouth, MA, 02189
Phone	7813355420
Fax	7813351876
Enumeration date	2006-07-23
Last updated in NPPES	2007-07-08

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223X0400X	Orthodontics and Dentofacial Orthopedics Dentistry	Primary	11859	MA

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Peter Cotsonas, DDS
NPI: 1467473389
Taxonomy: 1223X0400X (Orthodontics and Dentofacial Orthopedics Dentistry)
Address: 884 WASHINGTON ST, Weymouth, MA, 02189

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1861564510	Christoph Maywald	Individual	Chiropractor	Weymouth, MA
1669696530	Preventive Medicine Associates	Organization	Addiction Medicine (Family Medicine) Physician	Weymouth, MA
1336457191	Anna Coulstring	Individual	Psychiatric/Mental Health Nurse Practitioner	Weymouth, MA
1770022055	Dental Aid 1	Organization	Dental Clinic/Center	Weymouth, MA
1336886043	Megan Callahan	Individual	Social Worker	Weymouth, MA

Verify this record

Cross-check NPI 1467473389 against the authoritative CMS record: view Peter Eustace Cotsonas 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 Peter Cotsonas?

Peter Cotsonas is registered in NPPES with the primary taxonomy of Orthodontics and Dentofacial Orthopedics Dentistry. 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 2007-07-08.