Erwin J Oei, MD
Erwin J Oei is a Pulmonary Disease Physician provider (Internal Medicine) practicing in Summit, NJ, registered in the NPPES registry with NPI 1659373421 since 2005. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1659373421 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Erwin J Oei |
| Credential | MD |
| Sex | Male |
| Practice address | Summit, NJ, 07901 |
| Phone | 9089340555 |
| Enumeration date | 2005-08-11 |
| Last updated in NPPES | 2017-02-03 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207RP1001X | Pulmonary Disease Physician | Primary | 25MA07010700 | NJ |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 222233003 | Other | NJ | HORIZON INS, |
| 2974224 | Other | NJ | AETNA INS |
| 7VC204 | Other | NJ | EMPIRE INS |
| 163925 | Other | NJ | CHN INS. |
| P2669917 | Other | NJ | OXFORD INS. |
Copy-ready billing details
Provider: Erwin Oei, MD NPI: 1659373421 Taxonomy: 207RP1001X (Pulmonary Disease Physician) Address: Summit, NJ, 07901
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1184625220 | Federico Cerrone | Individual | Sleep Medicine (Internal Medicine) Physician | Summit, NJ |
| 1760483804 | Robert Restifo | Individual | Pulmonary Disease Physician | Summit, NJ |
| 1275534323 | Edward Dimitry | Individual | Pulmonary Disease Physician | Summit, NJ |
| 1568463636 | Louis Messano | Individual | Physician Assistant | Summit, NJ |
| 1750382818 | Frederic Scoopo | Individual | Pulmonary Disease Physician | Summit, NJ |
| 1831190990 | Robert Sussman | Individual | Specialist | Summit, NJ |
| 1881654036 | Jeffrey Nahmias | Individual | Sleep Medicine (Internal Medicine) Physician | Summit, NJ |
| 1346280518 | Pulmonary & Allergy Associates, PA | Organization | Specialist | Summit, NJ |
Verify this record
Cross-check NPI 1659373421 against the authoritative CMS record: view Erwin J Oei on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
Is NPI 1659373421 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2017-02-03.