Karen O'Mara, D.O.
NPI 1235112269 · Critical Care Medicine (Internal Medicine) Physician · Oak Lawn, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen O'Mara, D.O. is a Critical Care Medicine (Internal Medicine) Physician provider in Oak Lawn, IL (NPI 1235112269).
Provider details
- NPI number
- 1235112269
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 036057006 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 2800 W 95th StEvergreen Park, IL 60805Phone: (708) 422-4221Fax: (708) 422-4415
Registry dates
- Enumerated
- 2005-11-23
- Last updated
- 2025-06-18
- Certified
- 2025-06-18
Frequently asked questions
- What is Karen O'Mara's NPI number?
- Karen O'Mara's National Provider Identifier (NPI) is 1235112269, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen O'Mara's specialty?
- Karen O'Mara is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Karen O'Mara located?
- Karen O'Mara's practice location on file with NPPES is 9555 S 52nd Ave, Oak Lawn, IL 60453-3054.
- What is Karen O'Mara's phone number?
- The practice phone number listed in the NPPES registry for Karen O'Mara is (708) 684-6867.
- Does Karen O'Mara accept Medicare?
- Karen O'Mara is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen O'Mara's NPI active?
- Yes — Karen O'Mara's NPI (1235112269) is active in the NPPES registry as of the last update on 2025-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.