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Contact Information

MARK R NORTHFIELD, MD
1496 PROFESSIONAL DRIVE
SUITE 601
PETALUMA, CA94954
 Phone: 707-778-1131
 Fax: 707-778-3818
 Website:
 

Specialty

Taxonomy Code Specialty Code Provider Type

Orthopaedic Surgery

207X00000X 02 Physician/General Surgery
Indicates primary specialty

NPI Profile & details for MARK R NORTHFIELD · (Male)

NPI Number 1861406316
Status Active
Credentials MD
Entity Individual
Enumeration date 07/28/2006
Last updated 11/09/2021 - About 5 years ago
Sole proprietor 1 Yes
Identifiers
  • CA License # G77114
Hospital affiliation(s)
  • PETALUMA VALLEY HOSPITAL - (Acute Care)
    400 N MCDOWELL BLVD
    PETALUMA, CA 94954
  • SANTA ROSA MEMORIAL HOSPITAL - (Acute Care)
    1165 MONTGOMERY DR
    SANTA ROSA, CA 95405
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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