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

Dr. Clifford George Risk, MD, PHD

Individual provider Legal Medicine · NPI 1013029651

Dr. Clifford George Risk, MD, PHD is a Pulmonary Disease in Marlborough, Massachusetts. Graduated from Irvine California College of Medicine in 1977, 49 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
49
Trained at
Irvine California College of Medicine
Licensed in
MA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

320 Bolton St Ste 101
Marlborough, MA 01752-3980
Phone: (508) 481-4288
Fax: (508) 624-7228
Show map & directions

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

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 47576 (MA)
Legal Medicine Taxonomy 173000000X · Licence 47576 (MA)

Record details

NPI number1013029651
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedAugust 31, 2006
Last updated in NPPESMay 14, 2014

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Medical schoolIRVINE CALIFORNIA COLLEGE OF MEDICINE
Graduated 1977 (49 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services