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

Katherine Margaret Fair, MD

Individual provider Internal Medicine Physician · NPI 1629531777

Katherine Margaret Fair, MD is an Internal Medicine in Boston, Massachusetts. Graduated from University of Pittsburgh School of Medicine in 2019, 7 years ago. Practices with Lahey Clinic Inc, a 1,372-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and Washington.

Years since qualifying
7
Trained at
University of Pittsburgh School of Medicine
Licensed in
MA, WA
In the registry since
2019
Specialties on file
4
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

725 Albany St # 9B
Boston, MA 02118-3549
Phone: (617) 638-7480
Show map & directions

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

Additional practice locations (1)

  • 41 Mall Rd, Burlington, MA 01805-0001 — (781) 744-8000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 1023397 (MA)
Hospitalist Physician Taxonomy 208M00000X · Licence MD61184746 (WA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence PHY104778 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD61184746 (WA)

Record details

NPI number1629531777
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 7, 2019
Last updated in NPPESApril 13, 2026
Certification dateApril 13, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Lahey Clinic Inc — 1372 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Other providers in Boston