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Robert Larsen, M.D.
NPI 1639163553 · Anesthesiology Physician · Sacramento, CA
Robert Larsen, M.D. is a Anesthesiology Physician provider in Sacramento, CA (NPI 1639163553).
Provider details
- NPI number
- 1639163553
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- C51155 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
3315 Watt Ave
Sacramento, CA 95821-3600
Phone: (916) 481-6800
Fax: (916) 481-1881
Street-level locationGet directions
Mailing address
Po Box 660910
Sacramento, CA 95866-0910
Registry dates
- Enumerated
- 2005-09-07
- Last updated
- 2011-01-13
Frequently asked questions
- What is Robert Larsen's NPI number?
- Robert Larsen's National Provider Identifier (NPI) is 1639163553, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Larsen's specialty?
- Robert Larsen is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Larsen located?
- Robert Larsen's practice location on file with NPPES is 3315 Watt Ave, Sacramento, CA 95821-3600.
- What is Robert Larsen's phone number?
- The practice phone number listed in the NPPES registry for Robert Larsen is (916) 481-6800.
- Is Robert Larsen's NPI active?
- Yes — Robert Larsen's NPI (1639163553) is active in the NPPES registry as of the last update on 2011-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.