DR. GERARD DENNIS CERNIAK (M.D.) – Gastroenterology Physician, NPI 1003587049

DR. GERARD DENNIS CERNIAK (M.D.) is a healthcare provider. based in Joliet, Illinois. specializing in Gastroenterology Physician. They hold the professional credentials M.D.. They hold a License No. 36-46439 (IL). The NPI Number for DR. GERARD DENNIS CERNIAK (M.D.) is 1003587049

Main info

Male
Sole Proprietor
Name
DR. GERARD DENNIS CERNIAK (M.D.)
NPI
1003587049
Phone
(815) 744-7507
Address
208 TIMBERLINE CT
Enumeration Date
21 September 2021
Last Update Date
15 December 2021
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience37
Completeness75
Years active:4State licenses:1Digital endpointsOther names

Provider Addresses for DR. GERARD DENNIS CERNIAK (M.D.)

  • 208 TIMBERLINE CT

    JOLIET, IL 604314852

    Phone: (815) 744-7507

    Type: Mailing

  • 208 TIMBERLINE CT.

    JOLIET, IL 604314852

    Phone: (815) 744-7507

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 60431)

Loading plans...

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What is DR. GERARD DENNIS CERNIAK (M.D.)'s NPI number?
DR. GERARD DENNIS CERNIAK (M.D.)'s NPI is 1003587049 — the number used across U.S. healthcare to identify this provider.
Active or inactive — what applies to DR. GERARD DENNIS CERNIAK (M.D.)?
You should see DR. GERARD DENNIS CERNIAK (M.D.) as active in CMS-hosted NPPES data.
What area of care is associated with DR. GERARD DENNIS CERNIAK (M.D.)?
DR. GERARD DENNIS CERNIAK (M.D.)'s record emphasizes Gastroenterology Physician. Clinical services aligned with this taxonomy classification.
What locale is associated with DR. GERARD DENNIS CERNIAK (M.D.)?
Directory geography for DR. GERARD DENNIS CERNIAK (M.D.) centers on Joliet, Illinois.
When was this NPI issued?
Enumeration for DR. GERARD DENNIS CERNIAK (M.D.) is noted as September 21, 2021 where the registry provides it.

Similar Providers

DR. SURESH BHALLA (MD)

Gastroenterology Physician
Hammes Avenue, Joliet, Will County, Illinois, 60435, United States
NPI: 1811995426

DR. BASANT K JHAWAR (M.D.)

Gastroenterology Physician
1423, Essington Road, Joliet, Troy Township, Will County, Illinois, 60435, United States
NPI: 1205878048

DR. RICHARD ROTNICKI (DO)

Gastroenterology Physician
1715 N DIVISION ST STE A
NPI: 1427062850

DR. BACHAR HAMAD (M.D.)

Gastroenterology Physician
2363 63rd St
NPI: 1780690040

DR. TAMER ATASSI (M.D.)

Gastroenterology Physician
PO BOX 433
NPI: 1548276819

DR. RITEN HARSHAD SHETH (M.D.)

Gastroenterology Physician
3077, West Jefferson Street, Joliet, Troy Township, Will County, Illinois, 60435, United States
NPI: 1578664728

DIGESTIVE HEALTH ASSOCIATES, P.C.

Gastroenterology Physician
1100, Houbolt Road, Joliet, Will County, Illinois, 60431, United States
NPI: 1831369800

FAIZAN ALI KHAN (DO)

Gastroenterology Physician
PO BOX 2010
NPI: 1194022541
1890 SILVER CROSS BLVD STE 535
NPI: 1861902991