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Contact Information

CLAYTON P SMITH, MD
121 CORPORATE DR
PORTSMOUTH, NH03801-6895
 Phone: 603-230-6100
 Fax:
 Website:
 

Specialty

Taxonomy Code Specialty Code Provider Type

Radiation Oncology

2085R0001X 92 Physician/Radiation Oncology
 

General Practice

208D00000X 99 Physician/Undefined Physician type[6]
 

Student in an Organized Health Care Education/Training Program

390200000X
Indicates primary specialty

NPI Profile & details for CLAYTON P SMITH · (Male)

NPI # 1184184160
Status Active
Credentials MD
Entity Individual
Enumeration date 03/25/2019
Last updated 07/22/2025 - About 11 months ago
Sole proprietor 1 No
Identifiers
  • CA License # A180474
  • MA License # 1017867
  • NH License # 25062
Hospital affiliation(s) Not Available
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.

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