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

Dr. Leonard Lois Calo, MD

Individual provider Internal Medicine Physician · NPI 1033305545

Dr. Leonard Lois Calo, MD is an Internal Medicine in New Haven, Connecticut. Qualified in 2004, 22 years ago. Practices with Northeast Medical Group Inc, a 1,360-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
22
Licensed in
CT
In the registry since
2007
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

20 York St Ynh Medical Services Pc - Cb 2041
New Haven, CT 06504-8900
Phone: (203) 688-4748
Fax: (203) 688-4740
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 045289 (CT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 045289 (CT)

Record details

NPI number1033305545
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 18, 2007
Last updated in NPPESJanuary 6, 2015

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Northeast Medical Group Inc — 1360 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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