Doctor profile · Federal record

Dr. Nkemamaka Okpala, MD

Internal Medicine Physician (CMS: Internal Medicine) · Hackettstown, NJ

  • NPI 1992062749
  • Accepts Medicare
  • 20 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
433 Sand Shore RD
Hackettstown, NJ 078405504
(862) 254-2299
fax (862) 254-2300

Credentials & registration

NPPES · NUCC
NPI registered
April 2012 — 14 yrs on file
Profile last updated
August 23, 2016
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
New Jersey #25MA09363400
Medicaid
NJ #0379239

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1992062749. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
142
Distinct HCPCS
3
Medicare allowed
$15,415
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 61 20 $100
99214 Established patient office or other outpatient visit, 30-39 minutes 54 24 $141
99212 Established patient office or other outpatient visit, 10-19 minutes 27 12 $63

In context: peer comparison

Among 13 peers in Hackettstown Internal Medicine Physician, average services per provider: 137. This provider delivers 1.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
163
Patients
0
Total drug cost
$1,981
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 25 0 $200
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 21 0 $513
Metformin Hcl Generic 19 0 $160
Amlodipine Besylate Generic 17 0 $271
Levothyroxine Sodium Generic 17 0 $357
Lisinopril-Hydrochlorothiazide (Lisinopril/Hydrochlorothiazide) Brand 14 0 $61
Tramadol Hcl Generic 14 0 $86
Metoprolol Succinate Generic 13 0 $123
Alprazolam Generic 12 0 $79
Clopidogrel (Clopidogrel Bisulfate) Brand 11 0 $129

Frequently asked questions

Auto-generated from federal data
What is Dr. Nkemamaka Okpala's medical specialty?
Dr. Nkemamaka Okpala practices Internal Medicine Physician in Hackettstown, NJ.
Where does Dr. Nkemamaka Okpala practice?
Dr. Nkemamaka Okpala practices at 433 Sand Shore RD, Hackettstown, NJ 078405504. Office phone: 8622542299.
What is Dr. Nkemamaka Okpala's NPI?
Dr. Nkemamaka Okpala's National Provider Identifier (NPI) is 1992062749, issued by NPPES.
Does Dr. Nkemamaka Okpala accept Medicare assignment?
Yes. Dr. Nkemamaka Okpala accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nkemamaka Okpala commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99212). Source: CMS Medicare Physician & Other Practitioners file.