Doctor profile · Federal record

Dr. Obioma Nwaiwu, M.D

Geriatric Medicine (Family Medicine) Physician (CMS: Geriatric Medicine) · Student in an Organized Health Care Education/Training Program · Emergency Medicine Physician · Family Medicine Physician · Little Rock, AR

  • NPI 1649634601
  • Accepts Medicare
  • 21 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4301 W Markham St # 748
Little Rock, AR 722057101
(501) 686-6219
Mailing address
4301 W Markham St # 783
Little Rock, AR 722057101

Credentials & registration

NPPES · NUCC
NPI registered
April 2016 — 10 yrs on file
Profile last updated
August 25, 2021
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207QG0300X — NUCC code
State license (1)
Arkansas #E-12659

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1649634601. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
962
Distinct HCPCS
10
Medicare allowed
$81,907
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 365 244 $69
99443 Telephone medical discussion with physician, 21-30 minutes 111 88 $89
99284 Emergency department visit with moderate level of medical decision making 77 75 $112
99215 Established patient office or other outpatient visit, 40-54 minutes 69 63 $99
99442 Telephone medical discussion with physician, 11-20 minutes 65 61 $61
99285 Emergency department visit with high level of medical decision making 53 53 $163
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 52 52 $64
99204 New patient office or other outpatient visit, 45-59 minutes 47 47 $124
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 24 17 $73
99213 Established patient office or other outpatient visit, 20-29 minutes 22 21 $62

In context: peer comparison

Among 3 peers in this city , average services per provider: 75. This provider delivers 13× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,360
Patients
772
Total drug cost
$101,823
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 381 117 $5,571
Amlodipine Besylate Generic 268 98 $2,186
Gabapentin Generic 254 77 $4,592
Losartan Potassium Generic 180 61 $3,059
Levothyroxine Sodium Generic 177 57 $2,919
Lisinopril Generic 161 55 $1,749
Potassium Chloride Generic 145 62 $5,654
Trazodone Hcl Generic 110 39 $1,214
Donepezil Hcl Generic 107 33 $1,138
Metformin Hcl Er (Metformin Hcl) Brand 102 30 $1,173

Frequently asked questions

Auto-generated from federal data
What is Dr. Obioma Nwaiwu's medical specialty?
Dr. Obioma Nwaiwu practices Geriatric Medicine (Family Medicine) Physician in Little Rock, AR.
Where does Dr. Obioma Nwaiwu practice?
Dr. Obioma Nwaiwu practices at 4301 W Markham St # 748, Little Rock, AR 722057101. Office phone: 5016866219.
What is Dr. Obioma Nwaiwu's NPI?
Dr. Obioma Nwaiwu's National Provider Identifier (NPI) is 1649634601, issued by NPPES.
Does Dr. Obioma Nwaiwu accept Medicare assignment?
Yes. Dr. Obioma Nwaiwu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Obioma Nwaiwu commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99443); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.