Karen Duderstadt, NP
NPI 1144347519 · Ambulatory Care Registered Nurse · San Francisco, CA
Karen Duderstadt, NP is a Ambulatory Care Registered Nurse provider in San Francisco, CA (NPI 1144347519).
Provider details
- NPI number
- 1144347519
- Entity type
- Individual
- Primary specialty
- Ambulatory Care Registered NurseNursing Service Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- RN229710 (CA)
Specialties & taxonomies
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$234 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-23
- Last updated
- 2025-09-11
Frequently asked questions
- What is Karen Duderstadt's NPI number?
- Karen Duderstadt's National Provider Identifier (NPI) is 1144347519, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Duderstadt's specialty?
- Karen Duderstadt is listed in the NPPES registry with a primary specialty of Ambulatory Care Registered Nurse (Nursing Service Providers).
- Where is Karen Duderstadt located?
- Karen Duderstadt's practice location on file with NPPES is 1001 Potrero Ave # 6m, San Francisco, CA 94110-3518.
- What is Karen Duderstadt's phone number?
- The practice phone number listed in the NPPES registry for Karen Duderstadt is (415) 206-5908.
- Is Karen Duderstadt's NPI active?
- Yes — Karen Duderstadt's NPI (1144347519) 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.