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

Dr. Leon P. McLean, MD

Individual provider Gastroenterology Physician · NPI 1457495806

Dr. Leon P. McLean, MD is a Gastroenterology in Derry, New Hampshire. Graduated from Tufts University School of Medicine in 2006, 20 years ago. Practices with Granite State Gastrointestinal Consultants PLLC, a 6-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New Hampshire.

Years since qualifying
20
Trained at
Tufts University School of Medicine
Licensed in
NH
In the registry since
2007
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

6 Tsienneto Rd Ste 301
Derry, NH 03038-1584
Phone: (603) 432-8802
Fax: (603) 432-8802
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence NH17841 (NH)

Record details

NPI number1457495806
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 19, 2007
Last updated in NPPESMarch 8, 2017
Mailing address6 Tsienneto Rd Ste 301, Derry, NH 03038-1584

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Granite State Gastrointestinal Consultants Pllc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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