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

Felipe Fernandez del Castillo, MD

Individual provider Internal Medicine Physician · NPI 1740639681

Felipe Fernandez del Castillo, MD is a Nephrology in Worcester, Massachusetts. Graduated from University of Massachusetts Medical School in 2016, 10 years ago. Practices with Atrius Health Inc, a 1,205-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Massachusetts.

Years since qualifying
10
Trained at
University of Massachusetts Medical School
Licensed in
IL, MA
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

123 Summer St Ste 380N
Worcester, MA 01608-1216
Phone: (508) 363-6126
Fax: (508) 363-9266
Show map & directions

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

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 286110 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125068852 (IL)

Record details

NPI number1740639681
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 10, 2016
Last updated in NPPESAugust 12, 2021
Certification dateAugust 12, 2021

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2016 (10 years in practice)
Group practice Atrius Health Inc — 1205 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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