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

Dr. Tristan Gregory Kooistra, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1205274305

Dr. Tristan Gregory Kooistra, MD is a Pulmonary Disease in Boston, Massachusetts. Graduated from Harvard Medical School in 2013, 13 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
13
Trained at
Harvard Medical School
Licensed in
MA
In the registry since
2013
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

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Boston, MA

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 276793 (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 256529 (MA)

Record details

NPI number1205274305
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 11, 2013
Last updated in NPPESApril 10, 2019

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2013 (13 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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