Warren Ong, MD
NPI 1003896101 · Psychiatry Physician · Warwick, RI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Warren Ong, MD is a Psychiatry Physician provider in Warwick, RI (NPI 1003896101).
Provider details
- NPI number
- 1003896101
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9162 (RI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 218 | 39 |
| Clonazepam | 202 | 30 |
| Alprazolam | 143 | 16 |
| Zolpidem Tartrate | 114 | 17 |
| Lorazepam | 109 | 20 |
| Clonidine Hcl | 104 | 20 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$98,532 across 111 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-17
- Last updated
- 2024-11-26
- Certified
- 2024-11-26
Frequently asked questions
- What is Warren Ong's NPI number?
- Warren Ong's National Provider Identifier (NPI) is 1003896101, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Ong's specialty?
- Warren Ong is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Warren Ong located?
- Warren Ong's practice location on file with NPPES is 2756 Post Rd, Warwick, RI 02886-3077.
- What is Warren Ong's phone number?
- The practice phone number listed in the NPPES registry for Warren Ong is (401) 691-6000.
- Does Warren Ong accept Medicare?
- Warren Ong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Warren Ong's NPI active?
- Yes — Warren Ong's NPI (1003896101) is active in the NPPES registry as of the last update on 2024-11-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.