National Provider Identifier Database

CLAYTON P SMITH, MD – NPI #1184184160
Radiation Oncology

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.


Contact Information

CLAYTON P SMITH, MD
121 CORPORATE DR
PORTSMOUTH, NH03801-6895
Phone: 603-230-6100
Fax:
Website:
Specialty Taxonomy Code
* Radiation Oncology 2085R0001X
General Practice 208D00000X
Student in an Organized Health Care Education/Training Program 390200000X

* Indicates primary specialty

NPI Profile & details for CLAYTON P SMITH

NPI Number 1184184160
Credentials MD
Entity Individual
Enumeration date 03/25/2019
Last updated 07/22/2025 - About 11 months ago
Sole proprietor1 No
Identifiers
  • CA License #: A180474
  • MA License #: 1017867
  • NH License #: 25062
Hospital affiliation n/a

1 A sole proprietor/sole proprietorship is an individual, and as such, is eligible for a single NPI number. The sole proprietor must apply for the NPI number using his or her own Social Security Number (SSN), not an Employer Identification Number (EIN) even if he/she has an EIN.

Reviews for CLAYTON P SMITH, MD

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