Nik Ooi
NPI 1215587365 · Psychiatric/Mental Health Nurse Practitioner · Silver Spring, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nik Ooi is a Psychiatric/Mental Health Nurse Practitioner provider in Silver Spring, MD (NPI 1215587365).
Provider details
- NPI number
- 1215587365
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- RN1047416 (DC)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
536 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 275 | $163 |
| Psychotherapy With Evaluation and Management Visit, 1 Hour90838 | 149 | $110 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 64 | $65 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 48 | $119 |
Typical Medicare-allowed amounts for these services range $65–$163 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 104 | 33 |
| Amlodipine Besylate | 38 | 17 |
| Atorvastatin Calcium | 32 | 12 |
| Clonazepam | 25 | — |
| Metformin Hcl | 22 | — |
| Pantoprazole Sodium | 22 | — |
| Duloxetine Hcl | 20 |
Practice location
Mailing address
Additional practice locations (1)
- 3020 14th St NwWashington, DC 20009-6865Phone: (202) 469-4699
Registry dates
- Enumerated
- 2019-09-19
- Last updated
- 2024-03-06
- Certified
- 2024-03-06
Frequently asked questions
- What is Nik Ooi's NPI number?
- Nik Ooi's National Provider Identifier (NPI) is 1215587365, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nik Ooi's specialty?
- Nik Ooi is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nik Ooi located?
- Nik Ooi's practice location on file with NPPES is 3901 Randolph Rd, Silver Spring, MD 20902-1052.
- What is Nik Ooi's phone number?
- The practice phone number listed in the NPPES registry for Nik Ooi is (434) 409-7543.
- Does Nik Ooi accept Medicare?
- Nik Ooi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nik Ooi's NPI active?
- Yes — Nik Ooi's NPI (1215587365) is active in the NPPES registry as of the last update on 2024-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.