John Peng, D.O., M.P.H.
NPI 1831333541 · Psychiatry Physician · Piscataway, NJ
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Peng, D.O., M.P.H. is a Psychiatry Physician provider in Piscataway, NJ (NPI 1831333541).
Provider details
- NPI number
- 1831333541
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O., M.P.H.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 25MB08537300 (NJ)
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
17 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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Quetiapine Fumarate | 37 |
| Paroxetine Hcl | 29 |
| Lamotrigine | 24 |
| Lithium Carbonatebrand: Lithium Carbonate Er | 24 |
| Bupropion Hclbrand: Bupropion Xl | 21 |
| Olanzapine | 13 |
| Sertraline Hcl | 13 |
| Zolpidem Tartrate | 13 |
| Divalproex Sodiumbrand: Divalproex Sodium Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$15 across 1 record (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
- 2009-04-24
- Last updated
- 2009-04-24
Frequently asked questions
- What is John Peng's NPI number?
- John Peng's National Provider Identifier (NPI) is 1831333541, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Peng's specialty?
- John Peng is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Peng located?
- John Peng's practice location on file with NPPES is 671 Hoes Ln W # C205, Piscataway, NJ 08854-8021.
- What is John Peng's phone number?
- The practice phone number listed in the NPPES registry for John Peng is (732) 235-4063.
- Does John Peng accept Medicare?
- John Peng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Peng's NPI active?
- Yes — John Peng's NPI (1831333541) is active in the NPPES registry as of the last update on 2009-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.