1. Home
  2. Directory
  3. New Jersey
  4. Belle Mead
  5. Counselor
  6. NPI Profile

MR. STEVEN J DRZEWOSZEWSKI
NPI 1083869184
Counselor - Addiction (Substance Use Disorder) in Belle Mead, NJ

Active since November 18, 2008PECOS EnrolledAccepts Medicare Assignment
252 ROUTE 601, BELLE MEAD, NJ 08502(908) 281-1000(908) 281-1676 Get Directions Write a Review

NPPES record last updated: November 18, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mr. Steven J Drzewoszewski NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. STEVEN J DRZEWOSZEWSKI (NPI 1083869184) is an individual addiction (substance use disorder) provider in Belle Mead, New Jersey, licensed in New Jersey (CDAC37CA00070300) and active in the NPI registry since November 2008. He is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1083869184
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameMR. STEVEN J DRZEWOSZEWSKI
Location Address252 ROUTE 601Belle Mead, NJ 08502-3923
Mailing Address252 Route 601Belle Mead, NJ 08502-3923 · (908) 281-1000 · Fax (908) 281-1676
Phone(908) 281-1000
Fax(908) 281-1676
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateNovember 18, 2008
✔ NPI 1083869184 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
License✔ Licensed in NJ · CDAC37CA00070300
252 ROUTE 601, Belle Mead, NJ 08502
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Steven J Drzewoszewski is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID840646766
PECOS Enrollment IDI20231030002622
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Steven Drzewoszewski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Happy Mango Mental Health PC
25 mi
Clinical
26 MADISON AVE STE 6
Morristown, NJ 07960
  • Reassigned Medicare billing, New Jersey enrollment
  • 14 clinicians in this Medicare group
NPI 1710695044 (973) 490-4284

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychiatric diagnostic evaluation 90791
A psychiatric diagnostic evaluation is a thorough assessment used to identify any mental health conditions you may have. It involves a detailed discussion about your symptoms, thoughts, feelings and behavior patterns. Your medical history and family's mental health history are also considered.
11 services11 patients

Other Providers at the Same Location NPPES 19

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. ROBERT BORNE ACS COUNSELOR
Counselor (Addiction (Substance Use Disorder))
252 ROUTE 601
BELLE MEAD, NJ 08502
Somerset County (908) 281-1000
HMH CARRIER CLINIC INC
Psychiatric Residential Treatment Facility
252 ROUTE 601
BELLE MEAD, NJ 08502
Somerset County (908) 281-1000
DR. CLAIRE C MARSH MD
Psychiatry & Neurology (Psychiatry)
252 ROUTE 601
BELLE MEAD, NJ 08502
Somerset County (908) 281-1449
HMH CARRIER CLINIC, INC.
Psychiatric Residential Treatment Facility
252 ROUTE 601
BELLE MEAD, NJ 08502
Somerset County (908) 281-1000
EAST MOUNTAIN HOSPITAL INC
Psychiatric Hospital
252 ROUTE 601
BELLE MEAD, NJ 08502
Somerset County (908) 281-1270
VIJAYA PEDDU MD
Psychiatry & Neurology (Psychiatry)
252 ROUTE 601
BELLE MEAD, NJ 08502
Somerset County (908) 281-1000
HMH CARRIER BEHAVIORAL HEALTH INC
Psychiatric Hospital
252 ROUTE 601
BELLE MEAD, NJ 08502
Somerset County (908) 281-1000
DR. ANTHONY MARINO JR. MD
Psychiatry & Neurology (Psychiatry)
252 ROUTE 601
BELLE MEAD, NJ 08502
Somerset County (908) 281-1455

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Steven Drzewoszewski's NPI number?

The NPI number for Steven Drzewoszewski is 1083869184. It was assigned to this individual provider in the NPPES registry on November 18, 2008.

Where is Steven Drzewoszewski located?

Steven Drzewoszewski practices at 252 Route 601, Belle Mead, NJ 08502. The listed phone number is (908) 281-1000.

What is Steven Drzewoszewski's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Is Steven Drzewoszewski enrolled in Medicare?

Yes. Steven Drzewoszewski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Steven Drzewoszewski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Steven Drzewoszewski reassigns Medicare benefits to Happy Mango Mental Health PC (Morristown, NJ). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Steven Drzewoszewski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Steven Drzewoszewski accept?

Health plans from Oscar Health list Steven Drzewoszewski as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Steven Drzewoszewski was last updated on November 18, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.