Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Thor Christian Bergersen, M.D.
Psychiatry Physician in Needham, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1013112796
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Registry record
Entity type Individual (Type 1)
Name Dr. Thor Christian Bergersen
Credential M.D.
Sex Male
Practice address 75 2nd Ave, Suite 310, Needham, MA, 02494
Phone (781) 726-6698
Fax (781) 726-6725
Enumeration date Jun 20, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
How do I verify Thor Bergersen's NPI record?
Cross-check NPI 1013112796 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1013112796 active?
Yes, as of the latest NPPES snapshot, NPI 1013112796 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Nichole Dacosta Adult Health Nurse Practitioner · Needham, MA NPI 1821195611 Hallowell Center Psychologist · Needham, MA NPI 1073843249 Catherine Birgeneau Psychologist · Needham, MA NPI 1578893525 Aletha Webb Adult Health Nurse Practitioner · Needham, MA NPI 1770815839 Docthor P.C. Adult Mental Health Clinic/Center · Needham, MA NPI 1952708968
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.