Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Frank Paul Castaldi, DO

Individual provider Optometrist · NPI 1043396302

Dr. Frank Paul Castaldi, DO is an Optometry in Stamford, Connecticut. Graduated from Pennsylvania College of Optometry in 1984, 42 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
42
Trained at
Pennsylvania College of Optometry
Licensed in
CT
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

0NE Bank St
Stamford, CT 06901-3006
Phone: (203) 324-1606
Fax: (203) 324-4357
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 1074 (CT)

Record details

NPI number1043396302
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedOctober 30, 2006
Last updated in NPPESSeptember 27, 2010
Mailing address0ne Bank Street, Stamford, CT 06901

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolPENNSYLVANIA COLLEGE OF OPTOMETRY
Graduated 1984 (42 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Stamford