Karen Fox, CRNP
NPI 1821153925 · Adult Health Nurse Practitioner · Rockville, MD
Karen Fox, CRNP is a Adult Health Nurse Practitioner provider in Rockville, MD (NPI 1821153925).
Provider details
- NPI number
- 1821153925
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- R097054 (MD)
Specialties & taxonomies
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.
$306 across 3 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
- 2006-12-27
- Last updated
- 2012-03-29
Frequently asked questions
- What is Karen Fox's NPI number?
- Karen Fox's National Provider Identifier (NPI) is 1821153925, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Fox's specialty?
- Karen Fox is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Fox located?
- Karen Fox's practice location on file with NPPES is 10110 Molecular Drive, Rockville, MD 20850-7542.
- What is Karen Fox's phone number?
- The practice phone number listed in the NPPES registry for Karen Fox is (301) 279-2779.
- Is Karen Fox's NPI active?
- Yes — Karen Fox's NPI (1821153925) is active in the NPPES registry as of the last update on 2012-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.