CLIFFORD JOSEPH KLIMAS DO
NPI 1831830058
Pediatrics in Oak Lawn, IL

Q: What is Clifford Klimas's NPI number?

The NPI number for Clifford Klimas is 1831830058. It was assigned to this individual provider in the NPPES registry on April 3, 2022.

Q: What is Clifford Klimas's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Q: When was this NPI record last updated?

The NPPES record for Clifford Klimas was last updated on June 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 60 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 03, 2022

4220 W 95TH ST, OAK LAWN, IL 60453(312) 949-4200(708) 423-1899 Get Directions Write a Review

NPPES record last updated: June 9, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 16, 2023, Mar 25, 2023 (2 updates tracked since 2023).

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About Clifford Joseph Klimas Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CLIFFORD JOSEPH KLIMAS DO (NPI 1831830058) is an individual pediatrics provider in Oak Lawn, Illinois, licensed in Illinois (125.081643) and active in the NPI registry since April 2022. He maintains a secondary practice location in Harrogate.

NPPES Registry Identity

NPI1831830058

Entity TypeIndividualMale

Primary Taxonomy208000000X

Provider Legal NameCLIFFORD JOSEPH KLIMASCredential: DO

Location Address4220 W 95TH STOak Lawn, IL 60453-2793

Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900

Phone(312) 949-4200

Fax(708) 423-1899

Sole ProprietorNo

Enumeration DateApril 3, 2022

Last NPPES UpdateJune 9, 20262 updates tracked since enumeration

NPPES CertifiedJune 9, 2026

✔ NPI 1831830058 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in IL · 125.081643

Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

4220 W 95TH ST, Oak Lawn, IL 60453

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Secondary Practice Location 1

Location 16965 Cumberland Gap PkwyHarrogate, TN 37752-8245 · Phone (423) 869-7200

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. SAMRITA SAWHNEY DO

Pediatrics

4220 W 95TH ST
OAK LAWN, IL 60453

Cook County (312) 949-4200

ALEXANDRA GARY DO

Pediatrics

4220 W 95TH ST
OAK LAWN, IL 60453

Cook County (312) 949-4200

ALEKYA KOTHAMASU MD

Pediatrics

4220 W 95TH ST
OAK LAWN, IL 60453

Cook County (708) 684-5341

ZACHARY MICHAEL BELNAVIS MD

Hospitalist

4220 W 95TH ST
OAK LAWN, IL 60453

Cook County (708) 684-5341

AMANY ABUNIMEH DO

Hospitalist

4220 W 95TH ST
OAK LAWN, IL 60453

Cook County (708) 684-5341

KELLY WHIRITY RD

Dietitian, Registered

4220 W 95TH ST, SUITE 200
OAK LAWN, IL 60453

Cook County (708) 398-0273

BENJAMIN OBADIAH PETERS DO

Pediatrics

4220 W 95TH ST
OAK LAWN, IL 60453

Cook County (312) 949-4200

TIMOTEEA ANA PEANA DO

Pediatrics

4220 W 95TH ST
OAK LAWN, IL 60453

Cook County (312) 949-4200

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Clifford Klimas's NPI number?

The NPI number for Clifford Klimas is 1831830058. It was assigned to this individual provider in the NPPES registry on April 3, 2022.

Where is Clifford Klimas located?

Clifford Klimas practices at 4220 W 95th St, Oak Lawn, IL 60453. The listed phone number is (312) 949-4200.

What is Clifford Klimas's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

When was this NPI record last updated?

The NPPES record for Clifford Klimas was last updated on June 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 60 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.