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AMAKA JENNIFER ONYIAGU M.D
NPI 1386263283
Internal Medicine in Las Vegas, NV

Active since April 10, 2020PECOS EnrolledAccepts Medicare Assignment
2720 N TENAYA WAY, LAS VEGAS, NV 89128(702) 877-8600 Get Directions Write a Review

NPPES record last updated: November 18, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 18, 2025, May 16, 2024, Apr 10, 2020 (3 updates tracked since 2020).

About Amaka Jennifer Onyiagu M.d NPPES

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

AMAKA JENNIFER ONYIAGU M.D (NPI 1386263283) is an individual internal medicine provider in Las Vegas, Nevada, licensed in Nevada (24413) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with Herrin Hospital, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1386263283
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameAMAKA JENNIFER ONYIAGUCredential: M.D
Location Address2720 N TENAYA WAYLas Vegas, NV 89128-0424
Mailing AddressPo Box 35380Las Vegas, NV 89133-5380 · (702) 579-3203 · Fax (702) 838-1456
Phone(702) 877-8600
Sole ProprietorYes
Medical School CMSOtherGraduated 2012
Enumeration DateApril 10, 2020
Last NPPES UpdateNovember 18, 20253 updates tracked since enumeration
NPPES CertifiedNovember 18, 2025
✔ NPI 1386263283 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NV · 24413
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.
2720 N TENAYA WAY, Las Vegas, NV 89128
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Amaka Jennifer Onyiagu M.d 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 ID4486009206
PECOS Enrollment IDI20251203001538
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Amaka Onyiagu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Optum Medical Group II Rhodes P C
0.2 mi
Internal Medicine
2704 N TENAYA WAY
Las Vegas, NV 89128
  • Reassigned Medicare billing, Nevada enrollment
  • 608 clinicians in this Medicare group
NPI 1790329407 (702) 877-5199
24 On Physicians, PC
1,464 mi
Hospitalist
1100 E NORRIS DR
Ottawa, IL 61350
  • Reassigned Medicare billing, Illinois enrollment
  • 233 clinicians in this Medicare group
NPI 1346480431 (800) 923-2247

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare 2

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 89128 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
$131.25 typical visit price
range $57.07 – $173.24
Typical copayment $32.81 (range $14.26 – $43.31)
Most-billed visit code 99204
Established Patient
$100.60 typical visit price
range $18.27 – $140.96
Typical copayment $25.15 (range $4.56 – $35.24)
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.

DR. VINOD KORRAPATI M.D.
Hospitalist
2720 N TENAYA WAY
LAS VEGAS, NV 89128
Clark County (419) 865-3040
MR. MOHAMED A HASSAN M.B.B.S.
Internal Medicine
2720 N TENAYA WAY
LAS VEGAS, NV 89128
Clark County (702) 877-8600
STEPHANIE HOLLISTER
Nurse Practitioner (Family)
2720 N TENAYA WAY
LAS VEGAS, NV 89128
Clark County (702) 877-5199
SEAN KUMAR MD
Hospitalist
2720 N TENAYA WAY
LAS VEGAS, NV 89128
Clark County (702) 877-8600
MRS. BRENDA SWAIM APRN-CNP
Nurse Practitioner (Family)
2720 N TENAYA WAY
LAS VEGAS, NV 89128
Clark County (702) 671-1111
ILYA REZNIKOV PHARMD
Pharmacist
2720 N TENAYA WAY
LAS VEGAS, NV 89128
Clark County (702) 242-7300
HOLLY ALENE PICK LCSW
Counselor (Mental Health)
2720 N TENAYA WAY
LAS VEGAS, NV 89128
Clark County (763) 330-3997
MRS. LUBNA JAVED SYED MD
Internal Medicine
2720 N TENAYA WAY
LAS VEGAS, NV 89128
Clark County (702) 877-5199

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 Amaka Onyiagu's NPI number?

The NPI number for Amaka Onyiagu is 1386263283. It was assigned to this individual provider in the NPPES registry on April 10, 2020.

Where is Amaka Onyiagu located?

Amaka Onyiagu practices at 2720 N Tenaya Way, Las Vegas, NV 89128. The listed phone number is (702) 877-8600.

What is Amaka Onyiagu's specialty?

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

Is Amaka Onyiagu enrolled in Medicare?

Yes. Amaka Onyiagu 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.

Which organizations bill Medicare for Amaka Onyiagu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Amaka Onyiagu reassigns Medicare benefits to 2 organizations: Optum Medical Group II Rhodes P C (Las Vegas, NV) and 24 On Physicians, PC (Ottawa, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Amaka Onyiagu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Amaka Onyiagu affiliated with any hospitals?

According to CMS data, Amaka Onyiagu is affiliated with Herrin Hospital and Memorial Hospital Of Carbondale.

When was this NPI record last updated?

The NPPES record for Amaka Onyiagu was last updated on November 18, 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.