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

Dr. Gregory K. Johnson, MD

Individual provider Specialist · NPI 1922049402

Dr. Gregory K. Johnson, MD is an Orthopedic Surgery in Haverhill, Massachusetts. Graduated from Columbia University College of Physicians and Surgeons in 1984, 42 years ago. Practices with Mass General Brigham Community Physicians Inc, a 422-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
42
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
MA
In the registry since
2006
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

288 Groveland St
Haverhill, MA 01830-6669
Phone: (978) 373-3851
Fax: (978) 521-6542
Show map & directions

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

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 76547 (MA)

Record details

NPI number1922049402
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 8, 2006
Last updated in NPPESJuly 13, 2026
Mailing address288 Groveland St, Haverhill, MA 01830-6669

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 1984 (42 years in practice)
Group practice Mass General Brigham Community Physicians Inc — 422 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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