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

William R Hart MD PC

Organization Internal Medicine Physician · NPI 1811946148

William R Hart MD PC is an Internal Medicine Physician in Hampstead, New Hampshire. Registered with an NPI since 2006.

In the registry since
2006
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

13 Emerson Ave
Hampstead, NH 03841-2265
Phone: (603) 329-6911
Fax: (603) 329-5712
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X

Record details

NPI number1811946148
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official William Hart — Owner · (603) 329-6911
NPI enumeratedMay 5, 2006
Last updated in NPPESAugust 22, 2020
Mailing addressPo Box 2200, Amherst, NH 03031-4200