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

Dr. Mark Garret, MD

Individual provider Neuromuscular Medicine (Psychiatry & Neurology) Physician · NPI 1245683226

Dr. Mark Garret, MD practises Neurology in Lebanon, New Hampshire. Qualified in 2016, 10 years ago. Practices with Dartmouth-Hitchcock Clinic, a 1,430-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts, Missouri and New Hampshire.

Years since qualifying
10
Licensed in
MA, MO, NH
In the registry since
2016
Specialties on file
5
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

1 Medical Center Dr # 1000
Lebanon, NH 03756-0001
Phone: (603) 650-5000
Fax: (603) 640-1228
Show map & directions

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

Additional practice locations (1)

  • 55 Fruit St # 835, Boston, MA 02114-2696 — (617) 724-3914

Specialties & licences

Neuromuscular Medicine (Psychiatry & Neurology) Physician (primary) Taxonomy 2084N0008X · Licence 33832 (NH)
Neuromuscular Medicine (Psychiatry & Neurology) Physician Taxonomy 2084N0008X · Licence 2020017661 (MO)
Neuromuscular Medicine (Psychiatry & Neurology) Physician Taxonomy 2084N0008X · Licence 291557 (MA)
Neurology Physician Taxonomy 2084N0400X · Licence 2020017661 (MO)
Neurology Physician Taxonomy 2084N0400X · Licence 291557 (MA)

Record details

NPI number1245683226
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 14, 2016
Last updated in NPPESMay 21, 2026
Certification dateMay 21, 2026

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Dartmouth-Hitchcock Clinic — 1430 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients93
Services billed 360 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Dartmouth-Hitchcock Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1430 clinicians in the practice; 12 are shown here.