Karen Kamerzell, FNP-BC
NPI 1003689621 · Family Nurse Practitioner · Littleton, CO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Kamerzell, FNP-BC is a Family Nurse Practitioner provider in Littleton, CO (NPI 1003689621).
Provider details
- NPI number
- 1003689621
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0999261 (CO)
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
2 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
$92 across 1 record (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
Additional practice locations (1)
- 7761 Shaffer Pkwy Ste 225Littleton, CO 80127-3729Phone: (303) 862-1504Fax: (303) 933-9431
Registry dates
- Enumerated
- 2023-11-06
- Last updated
- 2025-12-29
- Certified
- 2025-12-29
Frequently asked questions
- What is Karen Kamerzell's NPI number?
- Karen Kamerzell's National Provider Identifier (NPI) is 1003689621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Kamerzell's specialty?
- Karen Kamerzell is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Kamerzell located?
- Karen Kamerzell's practice location on file with NPPES is 1000 Southpark Dr, Littleton, CO 80120-5654.
- What is Karen Kamerzell's phone number?
- The practice phone number listed in the NPPES registry for Karen Kamerzell is (303) 744-1065.
- Does Karen Kamerzell accept Medicare?
- Karen Kamerzell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Kamerzell's NPI active?
- Yes — Karen Kamerzell's NPI (1003689621) is active in the NPPES registry as of the last update on 2025-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.