Margaret Keenan, DNP, FNP-C
NPI 1275179806 · Nurse Practitioner · Oak Lawn, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Keenan, DNP, FNP-C is a Nurse Practitioner provider in Oak Lawn, IL (NPI 1275179806).
Provider details
- NPI number
- 1275179806
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 209019975 (IL)
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
6 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
- 2019-11-19
- Last updated
- 2024-03-26
- Certified
- 2024-03-26
Frequently asked questions
- What is Margaret Keenan's NPI number?
- Margaret Keenan's National Provider Identifier (NPI) is 1275179806, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Keenan's specialty?
- Margaret Keenan is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Keenan located?
- Margaret Keenan's practice location on file with NPPES is 4440 W 95th St, Oak Lawn, IL 60453-2600.
- What is Margaret Keenan's phone number?
- The practice phone number listed in the NPPES registry for Margaret Keenan is (708) 684-8000.
- Does Margaret Keenan accept Medicare?
- Margaret Keenan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Keenan's NPI active?
- Yes — Margaret Keenan's NPI (1275179806) is active in the NPPES registry as of the last update on 2024-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.