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DR. EZENWA C ONYEMA MD
NPI 1679852636
Internal Medicine in Houston, TX

Active since August 09, 2011PECOS EnrolledAccepts Medicare Assignment
82.38/100
CMS Quality Rating
6431 FANNIN ST, HOUSTON, TX 77030(713) 704-3989 Get Directions Write a Review

NPPES record last updated: June 22, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Ezenwa C Onyema Md NPPES

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

DR. EZENWA C ONYEMA MD (NPI 1679852636) is an individual internal medicine provider in Houston, Texas, licensed in Maryland (MD042538) and active in the NPI registry since August 2011. He is enrolled in Medicare PECOS, is affiliated with Memorial Hermann - Texas Medical Center, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1679852636
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. EZENWA C ONYEMACredential: MD
Location Address6431 FANNIN STHouston, TX 77030-1501
Mailing Address110 Irving St NwWashington, DC 20010-3017
Phone(713) 704-3989
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateAugust 9, 2011
Last NPPES UpdateJune 22, 2022
NPPES CertifiedJune 22, 2022
✔ NPI 1679852636 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 MD · MD042538
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
6431 FANNIN ST, Houston, TX 77030
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

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. Ezenwa C Onyema 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 ID8325360670
PECOS Enrollment IDI20160818001186
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.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
281 services118 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
68 services67 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
58 services57 patients

Hospital Affiliations CMS Care Compare

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

Memorial Hermann - Texas Medical Center

Acute Care Hospitals · Houston, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450068
Location6411 FanninHouston, TX 77030 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77030 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
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.38/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality79.23
Promoting Interoperability100
Improvement Activities40
Cost58.5

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$11.33 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$55.75 avg. paid by Medicare
Lightweight wheelchair K0003
DME-Wheelchairs · category DD000N
1 supplier24 claims24 services$16.97 avg. paid by Medicare
Elevating leg rests, pair (for use with capped rental wheelchair base) K0195
DME-Wheelchairs · category DD021N
1 supplier30 claims30 services$6.28 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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. STUART MASON FRASER M.D.
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
6431 FANNIN ST, MSB 3.151
HOUSTON, TX 77030
Harris County (713) 500-5800
AMY ROSSI MD
Emergency Medicine
6431 FANNIN ST, JJL 431
HOUSTON, TX 77030
Harris County (713) 500-7882
MATTHEW KHOA NGUYEN
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 500-6113
MARY WAYNE PELTIER MD
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 500-5010
HANNA MAVRIC DO
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 500-7882
DR. DAVIDE CATTANO MD
Anesthesiology
6431 FANNIN ST, MSB 5.020
HOUSTON, TX 77030
Harris County (713) 500-6235
MICHAEL ANTHONY HOLZMAN
Orthopaedic Surgery
6431 FANNIN ST, SUITE JJL 310
HOUSTON, TX 77030
Harris County (713) 500-5154
SHUBHANGI MEHRA
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 500-0798

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 Ezenwa Onyema's NPI number?

The NPI number for Ezenwa Onyema is 1679852636. It was assigned to this individual provider in the NPPES registry on August 9, 2011.

Where is Ezenwa Onyema located?

Ezenwa Onyema practices at 6431 Fannin St, Houston, TX 77030. The listed phone number is (713) 704-3989.

What is Ezenwa Onyema's specialty?

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

Is Ezenwa Onyema enrolled in Medicare?

Yes. Ezenwa Onyema 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.

What insurance does Ezenwa Onyema accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Ezenwa Onyema as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ezenwa Onyema affiliated with any hospitals?

According to CMS data, Ezenwa Onyema is affiliated with Memorial Hermann - Texas Medical Center.

When was this NPI record last updated?

The NPPES record for Ezenwa Onyema was last updated on June 22, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.