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DR. OBIEFUNA CHINEDU OKPONYIA MD
NPI 1609505528
Internal Medicine in Carbondale, IL

Active since June 07, 2022PECOS EnrolledAccepts Medicare Assignment
405 W JACKSON ST, CARBONDALE, IL 62901(618) 942-2171 Get Directions Write a Review

NPPES record last updated: August 29, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Obiefuna Chinedu Okponyia Md NPPES

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

DR. OBIEFUNA CHINEDU OKPONYIA MD (NPI 1609505528) is an individual internal medicine provider in Carbondale, Illinois, licensed in Illinois (036.176889) and active in the NPI registry since June 2022. He is enrolled in Medicare PECOS, is affiliated with Herrin Hospital, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1609505528
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. OBIEFUNA CHINEDU OKPONYIACredential: MD
Location Address405 W JACKSON STCarbondale, IL 62901-1462
Mailing Address405 W Jackson StCarbondale, IL 62901-1462 · (618) 942-2171
Phone(618) 942-2171
Sole ProprietorYes
Medical School CMSOtherGraduated 2015
Enumeration DateJune 7, 2022
Last NPPES UpdateAugust 29, 2025
NPPES CertifiedAugust 29, 2025
✔ NPI 1609505528 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036.176889
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
405 W JACKSON ST, Carbondale, IL 62901
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Obiefuna Chinedu Okponyia Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6204332885
PECOS Enrollment IDI20251002001012
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Herrin Hospital

Acute Care Hospitals · Herrin, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140011
Location201 S 14th StHerrin, IL 62948 · Williamson County
Emergency services

Memorial Hospital Of Carbondale

Acute Care Hospitals · Carbondale, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140164
Location405 W JacksonCarbondale, IL 62901 · Jackson County
Emergency services Birthing friendly

Heartland Regional Medical Center

Acute Care Hospitals · Marion, IL
2/5 CMS rating
OwnershipProprietary
CMS Certification Number140184
Location3333 W DeyoungMarion, IL 62959 · Williamson County
Emergency services

Harrisburg Medical Center

Acute Care Hospitals · Harrisburg, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140210
Location100 Doctor Warren Tuttle DrHarrisburg, IL 62946 · Saline County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62901 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$127.46 typical visit price
range $54.80 – $168.44
Typical copayment $31.86 (range $13.70 – $42.11)
Most-billed visit code 99204
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

MR. LUKAS WARD PA
Physician Assistant
405 W JACKSON ST
CARBONDALE, IL 62901
Jackson County (618) 549-0721
RUPAL PARMAR M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
405 W JACKSON ST
CARBONDALE, IL 62901
Jackson County (618) 549-0721
SCOTT A. COOPER M.D.
Emergency Medicine
405 W JACKSON ST, MEMORIAL HOSPITAL
CARBONDALE, IL 62901
Jackson County (618) 549-0721
LONG HA HUYNH M.D., PH.D.
Anesthesiology
405 W JACKSON ST
CARBONDALE, IL 62901
Jackson County (618) 549-0721
MS. BRITNEY NICOLE ARNOLD PA-C
Physician Assistant
405 W JACKSON ST
CARBONDALE, IL 62901
Jackson County (618) 549-0721
MR. DAN EDWARD MILLER CRNA
Nurse Anesthetist, Certified Registered
405 W JACKSON ST
CARBONDALE, IL 62901
Jackson County (618) 549-0721
AMANDA M RYDEN MD
Emergency Medicine
405 W JACKSON ST
CARBONDALE, IL 62901
Jackson County (618) 549-0721
MS. NICOLE A JOHNSON PA-C
Physician Assistant
405 W JACKSON ST
CARBONDALE, IL 62901
Jackson County (618) 549-0721

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 Obiefuna Okponyia's NPI number?

The NPI number for Obiefuna Okponyia is 1609505528. It was assigned to this individual provider in the NPPES registry on June 7, 2022.

Where is Obiefuna Okponyia located?

Obiefuna Okponyia practices at 405 W Jackson St, Carbondale, IL 62901. The listed phone number is (618) 942-2171.

What is Obiefuna Okponyia's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Obiefuna Okponyia enrolled in Medicare?

Yes. Obiefuna Okponyia is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Obiefuna Okponyia affiliated with any hospitals?

According to CMS data, Obiefuna Okponyia is affiliated with Herrin Hospital, Memorial Hospital Of Carbondale, Heartland Regional Medical Center and Harrisburg Medical Center.

When was this NPI record last updated?

The NPPES record for Obiefuna Okponyia was last updated on August 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.