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

Dr. David Werblin Nierenberg, MD

Individual provider Internal Medicine Physician · NPI 1275558645

Dr. David Werblin Nierenberg, MD is an Internal Medicine in Lebanon, New Hampshire. Graduated from Harvard Medical School in 1976, 50 years ago. Practices with Mary Hitchcock Memorial Hospital, a 1,266-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
50
Trained at
Harvard Medical School
Licensed in
NH
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

1 Medical Center Dr Dhmc - Dept OF Clinical Pharmacology
Lebanon, NH 03756-1000
Phone: (603) 650-7679
Fax: (603) 650-6841
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 6407 (NH)

Record details

NPI number1275558645
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 13, 2006
Last updated in NPPESFebruary 29, 2012

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1976 (50 years in practice)
Group practice Mary Hitchcock Memorial Hospital — 1266 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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