Clifford Klimas, DO
NPI 1831830058 · Pediatrics Physician · Oak Lawn, IL
Clifford Klimas, DO is a Pediatrics Physician provider in Oak Lawn, IL (NPI 1831830058).
Provider details
- NPI number
- 1831830058
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% 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)
- 6965 Cumberland Gap PkwyHarrogate, TN 37752-8245Phone: (423) 869-7200
Registry dates
- Enumerated
- 2022-04-03
- Last updated
- 2023-05-16
- Certified
- 2023-05-16
Frequently asked questions
- What is Clifford Klimas's NPI number?
- Clifford Klimas's National Provider Identifier (NPI) is 1831830058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clifford Klimas's specialty?
- Clifford Klimas is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Clifford Klimas located?
- Clifford Klimas's practice location on file with NPPES is 4220 W 95th St, Oak Lawn, IL 60453-2793.
- What is Clifford Klimas's phone number?
- The practice phone number listed in the NPPES registry for Clifford Klimas is (312) 949-4200.
- Is Clifford Klimas's NPI active?
- Yes — Clifford Klimas's NPI (1831830058) is active in the NPPES registry as of the last update on 2023-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.