Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Ricardo De Castro Fonseca Ribeiro Sr., MD

Individual provider Internal Medicine Physician · NPI 1386993194

Dr. Ricardo De Castro Fonseca Ribeiro Sr., MD practises Internal Medicine in East Boston, Massachusetts. Qualified in 2008, 18 years ago. Practices with Charles River Medical Associates, PC, a 119-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
18
Licensed in
MA
In the registry since
2012
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

10 Gove St
East Boston, MA 02128-1920 Not confirmed with CMS for 10 years — call before visiting
Phone: (617) 569-5800
Fax: (617) 568-4780
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 264880 (MA)

Record details

NPI number1386993194
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 7, 2012
Last updated in NPPESOctober 19, 2015

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Charles River Medical Associates, Pc — 119 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients526
Services billed 3,154 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Charles River Medical Associates, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 119 clinicians in the practice; 12 are shown here.

Other providers in East Boston