Karen Larsen, MD
NPI 1326132796 · Addiction Psychiatry Physician · Palo Alto, CA
Karen Larsen, MD is a Addiction Psychiatry Physician provider in Palo Alto, CA (NPI 1326132796).
Provider details
- NPI number
- 1326132796
- Entity type
- Individual
- Primary specialty
- Addiction Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 042-0006922 (VT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2025-09-11
Frequently asked questions
- What is Karen Larsen's NPI number?
- Karen Larsen's National Provider Identifier (NPI) is 1326132796, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Larsen's specialty?
- Karen Larsen is listed in the NPPES registry with a primary specialty of Addiction Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Larsen located?
- Karen Larsen's practice location on file with NPPES is 3801 Miranda Ave, Palo Alto, CA 94304-1207.
- What is Karen Larsen's phone number?
- The practice phone number listed in the NPPES registry for Karen Larsen is (650) 493-5000.
- Is Karen Larsen's NPI active?
- Yes — Karen Larsen's NPI (1326132796) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.