Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nurse Practitioner

Nik J. Ooi, NP

Sees patients in Washington, DC · Silver Spring, MD · District of Columbia, Maryland

Summary

Nik J. Ooi, NP (Nurse Practitioner) is enrolled with Medicare at 2 practice locations in Washington, DC and Silver Spring, MD. NPI 1215587365. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Nik J. Ooi, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
7Years since medical school (graduated 2019)
MaleGender (as listed)
Unity Health Care Inc.Group practice

Quick answers

Where does Nik J. Ooi see patients?
Medicare's clinician data lists 2 practice locations, including Washington, DC and Silver Spring, MD. Call before your visit to confirm the address.
What is Nik J. Ooi's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Nik J. Ooi accept Medicare assignment?
Yes. Medicare's clinician data says Nik J. Ooi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Nik J. Ooi offer telehealth?
Medicare's clinician data says Nik J. Ooi offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Nik J. Ooi?
(202) 745-4300, as listed in official Medicare / NPI Registry data.
What is Nik J. Ooi's NPI number?
1215587365. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Nik J. Ooi is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Nik J. Ooi as a member of this group (CMS data updated 2026-10-02).

  • Unity Health Care Inc.151 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, District of Columbia →

Other nurse practitioners in Washington

Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.

All nurse practitioners in Washington →

Clinician information

CredentialNP
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1215587365
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians