Doctor profile · Federal record

Dr. Nnamdi Maduekwe, MD

Psychiatry Physician (CMS: Psychiatry) · Internal Medicine Physician · Psychiatry Physician · Pomona, NY

  • NPI 1659424398
  • Accepts Medicare
  • MIPS 89.1 / 100 · 2023
  • 38 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
81 Halley Drive
Pomona, NY 10970
(646) 286-9770
Additional location
34 Maple St
Norwalk, CT 068503815
(866) 642-9355

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
July 17, 2023
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State licenses (2)
New York #244833 · Connecticut #72661

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659424398. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
258
Distinct HCPCS
3
Medicare allowed
$17,620
HCPCS Description Services Patients Avg allowed
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 140 51 $57
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 107 19 $82
99283 Emergency department visit with low level of medical decision making 11 11 $74

In context: peer comparison

Among 3 peers in Pomona Psychiatry Physician, average services per provider: 118. This provider delivers 2.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$119
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Eisai INC. 1 $118.88

By nature of payment

Food and Beverage
$119

Frequently asked questions

Auto-generated from federal data
What is Dr. Nnamdi Maduekwe's medical specialty?
Dr. Nnamdi Maduekwe practices Psychiatry Physician in Pomona, NY.
Where does Dr. Nnamdi Maduekwe practice?
Dr. Nnamdi Maduekwe practices at 81 Halley Drive, Pomona, NY 10970. Office phone: 6462869770.
What is Dr. Nnamdi Maduekwe's NPI?
Dr. Nnamdi Maduekwe's National Provider Identifier (NPI) is 1659424398, issued by NPPES.
Does Dr. Nnamdi Maduekwe accept Medicare assignment?
Yes. Dr. Nnamdi Maduekwe accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nnamdi Maduekwe commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.