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

Individual provider Optometrist · NPI 1235369349

Dr. John T Leffers, OD is an Optometry in Providence, Rhode Island. Qualified in 2009, 17 years ago. Practices with Mass Optometric Associates, PLLC, a 49-clinician group and accepts Medicare assignment. Licensed in Rhode Island.

Years since qualifying
17
Licensed in
RI
In the registry since
2009
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

891 Westminster St
Providence, RI 02903-4020
Phone: (401) 331-7850
Fax: (401) 274-4739
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence ODTG00540 (RI)

Record details

NPI number1235369349
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedJuly 23, 2009
Last updated in NPPESJuly 23, 2009

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Mass Optometric Associates, Pllc — 49 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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