Karen Koeller, NP-C
NPI 1891231866 · Adult Health Nurse Practitioner · Newport Beach, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Koeller, NP-C is a Adult Health Nurse Practitioner provider in Newport Beach, CA (NPI 1891231866).
Provider details
- NPI number
- 1891231866
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 95004521 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2017-01-13
- Last updated
- 2017-01-13
Frequently asked questions
- What is Karen Koeller's NPI number?
- Karen Koeller's National Provider Identifier (NPI) is 1891231866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Koeller's specialty?
- Karen Koeller is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Koeller located?
- Karen Koeller's practice location on file with NPPES is One Hoag Drive, Bldg 41, 3rd Floor, Newport Beach, CA 92663-4162.
- What is Karen Koeller's phone number?
- The practice phone number listed in the NPPES registry for Karen Koeller is (949) 764-6130.
- Does Karen Koeller accept Medicare?
- Karen Koeller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Koeller's NPI active?
- Yes — Karen Koeller's NPI (1891231866) is active in the NPPES registry as of the last update on 2017-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.