Karen Anne O'Laco, MD
NPI 1386221448 · Anesthesiology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Anne O'Laco, MD is a Anesthesiology Physician provider in Stanford, CA (NPI 1386221448).
Provider details
- NPI number
- 1386221448
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2021-03-25
- Last updated
- 2025-06-25
- Certified
- 2025-06-25
Frequently asked questions
- What is Karen Anne O'Laco's NPI number?
- Karen Anne O'Laco's National Provider Identifier (NPI) is 1386221448, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Anne O'Laco's specialty?
- Karen Anne O'Laco is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Anne O'Laco located?
- Karen Anne O'Laco's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Karen Anne O'Laco's phone number?
- The practice phone number listed in the NPPES registry for Karen Anne O'Laco is (650) 723-4000.
- Does Karen Anne O'Laco accept Medicare?
- Karen Anne O'Laco is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Anne O'Laco's NPI active?
- Yes — Karen Anne O'Laco's NPI (1386221448) is active in the NPPES registry as of the last update on 2025-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.