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

Timothy J Ernst, MD

Individual provider Medical Oncology Physician · NPI 1972542975

Timothy J Ernst, MD is a Medical Oncology Physician in Natick, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
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

67 Union St Ste 206
Natick, MA 01760-7700
Phone: (508) 655-0065
Show map & directions

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

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 52630 (MA)

Record details

NPI number1972542975
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 5, 2006
Last updated in NPPESJune 13, 2012
Mailing address67 Union St, Suite 206, Natick, MA 01760-7700