Karen Nichols, RN, MSN
NPI 1447343645 · Family Nurse Practitioner · Saint Louis, MO
Enrolled with Medicare as Order and Referring Only - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Nichols, RN, MSN is a Family Nurse Practitioner provider in Saint Louis, MO (NPI 1447343645).
Provider details
- NPI number
- 1447343645
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN, MSN
- Sex
- Female
- Sole proprietor
- No
- License
- 2003003305 (MO)
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 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
- 2006-10-02
- Last updated
- 2007-07-09
Frequently asked questions
- What is Karen Nichols's NPI number?
- Karen Nichols's National Provider Identifier (NPI) is 1447343645, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Nichols's specialty?
- Karen Nichols is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Nichols located?
- Karen Nichols's practice location on file with NPPES is 4590 S Lindbergh Blvd, Saint Louis, MO 63127-1810.
- What is Karen Nichols's phone number?
- The practice phone number listed in the NPPES registry for Karen Nichols is (314) 849-7669.
- Does Karen Nichols accept Medicare?
- Karen Nichols is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Nichols's NPI active?
- Yes — Karen Nichols's NPI (1447343645) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.