Doctor profile · Federal record

Dr. Nik Ooi

Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Primary Care Nurse Practitioner · Primary Care Nurse Practitioner · Gerontology Nurse Practitioner · Psychiatric/Mental Health Nurse Practitioner · Adult Health Nurse Practitioner · Silver Spring, MD

  • NPI 1215587365
  • Accepts Medicare
  • 7 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3901 Randolph RD
Silver Spring, MD 209021052
(434) 409-7543
Additional location
3020 14Th St Nw
Washington, DC 200096865
(202) 469-4699

Credentials & registration

NPPES · NUCC
NPI registered
September 2019 — 7 yrs on file
Profile last updated
March 6, 2024
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363LP0808X — NUCC code
State licenses (3)
Maryland #R263594 · District of Columbia #RN1047416 · Texas #976325

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215587365. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
261
Distinct HCPCS
4
Medicare allowed
$39,263
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 166 30 $170
99214 Established patient office or other outpatient visit, 30-39 minutes 44 22 $122
99491 Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month 39 14 $80
99205 New patient office or other outpatient visit, 60-74 minutes 12 12 $209

In context: peer comparison

Among 12 peers in this city , average services per provider: 164. This provider delivers 1.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
317
Patients
46
Total drug cost
$4,110
Drug Type Claims Patients Total cost
Donepezil Hcl Generic 53 19 $440
Amlodipine Besylate Generic 33 14 $275
Atorvastatin Calcium Generic 29 0 $662
Duloxetine Hcl Generic 27 13 $491
Lisinopril Generic 23 0 $288
Pantoprazole Sodium Generic 23 0 $403
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 22 0 $492
Hydrochlorothiazide Generic 22 0 $120
Metformin Hcl Generic 22 0 $301
Furosemide Generic 18 0 $107

Frequently asked questions

Auto-generated from federal data
What is Dr. Nik Ooi's medical specialty?
Dr. Nik Ooi practices Psychiatric/Mental Health Nurse Practitioner in Silver Spring, MD.
Where does Dr. Nik Ooi practice?
Dr. Nik Ooi practices at 3901 Randolph RD, Silver Spring, MD 209021052. Office phone: 4344097543.
What is Dr. Nik Ooi's NPI?
Dr. Nik Ooi's National Provider Identifier (NPI) is 1215587365, issued by NPPES.
Does Dr. Nik Ooi accept Medicare assignment?
Yes. Dr. Nik Ooi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nik Ooi commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Chronic care management services for two or more chronic conditions (HCPCS 99491). Source: CMS Medicare Physician & Other Practitioners file.