Mary Kleinaitis, NP
NPI 1558166751 · Family Nurse Practitioner · Skokie, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Kleinaitis, NP is a Family Nurse Practitioner provider in Skokie, IL (NPI 1558166751).
Provider details
- NPI number
- 1558166751
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 209029117 (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
1 yr 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)
- 6916 Cermak RdBerwyn, IL 60402-2244Phone: (708) 933-3840
Registry dates
- Enumerated
- 2025-02-13
- Last updated
- 2026-04-07
- Certified
- 2026-04-07
Frequently asked questions
- What is Mary Kleinaitis's NPI number?
- Mary Kleinaitis's National Provider Identifier (NPI) is 1558166751, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Kleinaitis's specialty?
- Mary Kleinaitis is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Kleinaitis located?
- Mary Kleinaitis's practice location on file with NPPES is 9735 Skokie Blvd, Skokie, IL 60077-1383.
- What is Mary Kleinaitis's phone number?
- The practice phone number listed in the NPPES registry for Mary Kleinaitis is (847) 380-8969.
- Does Mary Kleinaitis accept Medicare?
- Mary Kleinaitis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Kleinaitis's NPI active?
- Yes — Mary Kleinaitis's NPI (1558166751) is active in the NPPES registry as of the last update on 2026-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.