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

Lionel A. Sifontes, M D, PC

Organization Internal Medicine Physician · NPI 1598086902

Lionel A. Sifontes, M D, PC is an Internal Medicine Physician in Buffalo, New York. Licensed in New York. Registered with an NPI since 2010.

Licensed in
NY
In the registry since
2010
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

2772 Main St
Buffalo, NY 14214-1704
Phone: (716) 837-2772
Fax: (716) 837-0041
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 103484 (NY)

Record details

NPI number1598086902
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Lionel Sifontes — President · (716) 837-2772
NPI enumeratedJune 21, 2010
Last updated in NPPESJune 21, 2010
Mailing address2772 Main St, Buffalo, NY 14214-1704

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