Karen Woo, DO
NPI 1245318906 · Neonatal-Perinatal Medicine Physician · Roseville, CA
Karen Woo, DO is a Neonatal-Perinatal Medicine Physician provider in Roseville, CA (NPI 1245318906).
Provider details
- NPI number
- 1245318906
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 20A5666 (CA)
Specialties & taxonomies
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
- 2006-11-01
- Last updated
- 2009-02-27
Frequently asked questions
- What is Karen Woo's NPI number?
- Karen Woo's National Provider Identifier (NPI) is 1245318906, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Woo's specialty?
- Karen Woo is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Woo located?
- Karen Woo's practice location on file with NPPES is 1600 Eureka Rd, Roseville, CA 95661-3027.
- What is Karen Woo's phone number?
- The practice phone number listed in the NPPES registry for Karen Woo is (916) 784-4000.
- Is Karen Woo's NPI active?
- Yes — Karen Woo's NPI (1245318906) is active in the NPPES registry as of the last update on 2009-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.