David Kroning, MD
David Kroning, MD is a Pediatric Emergency Medicine (Pediatrics) Physician in Ridgewood, NJ, registered under NPI 1922058346. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 223 N VAN DIEN AVENUE THE VALLEY HOSPITAL, Ridgewood, NJ 07450. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 25MA06223600 | NJ | Pediatric Emergency Medicine (Pediatrics)… primary |
This provider holds licence 25MA06223600 issued in NJ. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Pediatric Emergency Medicine covers
A pediatrician who has special qualifications to manage emergencies in infants and children. NUCC Health Care Provider Taxonomy, code 2080P0204X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1922058346 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 10, 2006 |
| Last updated | Jul 8, 2007 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | MD |
| Practice address |
223 N VAN DIEN AVENUE THE VALLEY HOSPITAL Ridgewood, NJ 07450 (201) 444-2019 Fax (201) 444-3604 |
| Mailing address |
PO BOX 1173 VALLEY EMERGENCY ROOM ASSOCIATES PA Ridgewood, NJ 07451 |
| Other identifiers |
8486808
· Medicaid (NJ) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 9 | 2 | 2 | 0 | 5 | 8 | 3 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 4 | 2 | 0 | 5 | 7 | 3 | 8 |
Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.