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

Mr. Guillermo E Ferrer, MD

Individual provider Surgery Physician · NPI 1659470557

Mr. Guillermo E Ferrer, MD is a General Surgery in Ithaca, New York. Qualified in 1980, 46 years ago. Practices with Drs Ferrer and Monaghan Vein and Aesthetic Center LLP, a 2-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
46
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

8 Brentwood Dr Ste A
Ithaca, NY 14850
Phone: (607) 257-2116
Fax: (607) 257-0315
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 161912 (NY)

Record details

NPI number1659470557
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 21, 2006
Last updated in NPPESJuly 8, 2007
Mailing address8 Brentwood Drive, Suite A, Ithaca, NY 14850

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolOTHER
Graduated 1980 (46 years in practice)
Group practice Drs Ferrer And Monaghan Vein And Aesthetic Center Llp — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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