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

Dr. Louis Ercolani, MD

Individual provider Internal Medicine Physician · NPI 1164407516

Dr. Louis Ercolani, MD practises Nephrology in Boston, Massachusetts. Graduated from State University of New York at Stony Brook, School of Medicine in 1973, 53 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
53
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
MA
In the registry since
2005
Specialties on file
2
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

55 Fruit St Mass General Renal Unit
Boston, MA 02114-2621 Not confirmed with CMS for 15 years — call before visiting
Phone: (617) 726-5050
Fax: (617) 724-1122
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 51939 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 51939 (MA)

Record details

NPI number1164407516
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 8, 2005
Last updated in NPPESSeptember 23, 2011

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1973 (53 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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