Jennifer Douglas-kruk, MA, LPC, LCADC
Jennifer Douglas-kruk, MA, LPC, LCADC is a Professional Counselor in Denville, NJ, registered under NPI 1003041401. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Denville, based on OpenStreetMap data collected Sep 1, 2026. Parking is available about 0.24 mi away. There is EV charging 0.43 mi from the office — useful if you are driving in from out of town. A pharmacy sits 0.47 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.49 mi away.
Getting here and what is nearby
Parking 0.23 mi ~5 min
Parking 0.24 mi ~5 min
Parking 0.24 mi ~5 min
EV charging 0.40 mi ~9 min
Restaurant Cafe Metro 0.41 mi ~9 min
60 Diamond Spring Road, Denville 07834
Mo-Th 12:00-20:00; Fr,Sa 12:00-21:00
EV charging 0.43 mi ~9 min
Restaurant Carver's 0.43 mi ~9 min
38 1st Avenue, Denville 07834
Coffee Church Street Bagels 0.44 mi ~9 min
Coffee Sweet Vinyl 0.47 mi ~10 min
23 Diamond Spring Road, Denville 07834
Tu-Fr 06:30-18:00; Sa 09:00-22:00; Su 09:00-17:00
Pharmacy Walgreens 0.47 mi ~10 min
22 West Main Street
Restaurant Moe's Southwest Grill 0.47 mi ~10 min
16 W Main Street, Denville 07834
Mo-Sa 11:00-20:00
Coffee Starbucks 0.49 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 37LC00096800 | NJ | Addiction (Substance Use Disorder)… |
| 37PC00049100 | NJ | Professional Counselor primary |
This provider holds licence 37LC00096800 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 Professional covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YP2500X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | 37LC00096800 | NJ | |
| 101YP2500X | Professional Counselor Professional | 37PC00049100 | NJ | primary |
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 | 1003041401 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 29, 2009 |
| Last updated | May 29, 2009 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | MA, LPC, LCADC |
| Practice address |
50 MORRIS AVE Denville, NJ 07834 (973) 625-7130 |
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 | 0 | 0 | 3 | 0 | 4 | 1 | 4 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 4 | 2 | 4 | 0 |
Sum = 39 · next multiple of 10 = 40 · check digit = 1 · actual last digit = 1
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.