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

Eric W. Eisenberg, MD

Individual provider Internal Medicine Physician · NPI 1427171545

Eric W. Eisenberg, MD is an Internal Medicine in Portsmouth, New Hampshire. Graduated from New York University School of Medicine in 2000, 26 years ago. Practices with Greater Seacoast Community Health, a 37-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Maine and New Hampshire.

Years since qualifying
26
Trained at
New York University School of Medicine
Licensed in
ME, NH
In the registry since
2007
Specialties on file
2
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

8 Greenleaf Woods Dr
Portsmouth, NH 03801-5454
Phone: (603) 422-8208
Fax: (603) 422-8218
Show map & directions

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

Additional practice locations (2)

  • 25a June St, Sanford, ME 04073-2642 — (207) 490-7998
  • 6 Healthcare Drive, Suite 2, Rochester, NH 03867 — (603) 330-3404

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD24359 (ME)
Internal Medicine Physician Taxonomy 207R00000X · Licence 17915 (NH)

Record details

NPI number1427171545
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 6, 2007
Last updated in NPPESMarch 26, 2024
Certification dateMarch 26, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Greater Seacoast Community Health — 37 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Other providers in Portsmouth