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SIERRA KLAASSENS
NPI 1427921097
Counselor in Pompton Plains, NJ

Active since September 29, 2025
287 BOULEVARD STE 2, POMPTON PLAINS, NJ 07444(845) 393-4723 Get Directions Write a Review

NPPES record last updated: September 29, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Sierra Klaassens NPPES

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

SIERRA KLAASSENS (NPI 1427921097) is an individual counselor in Pompton Plains, New Jersey, licensed in New Jersey (37AC00909300) and active in the NPI registry since September 2025.

NPPES Registry Identity

NPI1427921097
Entity TypeIndividualFemale
Primary Taxonomy101Y00000X
Provider Legal NameSIERRA KLAASSENS
Location Address287 BOULEVARD STE 2Pompton Plains, NJ 07444-1726
Mailing Address9 Cedar RdPompton Plains, NJ 07444-1430 · (973) 769-1335
Phone(845) 393-4723
Sole ProprietorNo
Enumeration DateSeptember 29, 2025
NPPES CertifiedSeptember 29, 2025
✔ NPI 1427921097 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselorBehavioral Health & Social Service Providers
Taxonomy Code101Y00000X
License✔ Licensed in NJ · 37AC00909300
Definition
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.
287 BOULEVARD STE 2, Pompton Plains, NJ 07444
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Other Providers at the Same Location NPPES 6

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

CYNTHIA M WILLS LCSW
Social Worker (Clinical)
287 BOULEVARD STE 2
POMPTON PLAINS, NJ 07444
Morris County (201) 259-0653
JEFFREY GELTMAN
Social Worker (Clinical)
287 BOULEVARD STE 2
POMPTON PLAINS, NJ 07444
Morris County (845) 393-4723
MAREYA REGAN
Social Worker (Clinical)
287 BOULEVARD STE 2
POMPTON PLAINS, NJ 07444
Morris County (845) 393-4723
DR. GRIGORIY SOYBELMAN M.D.
Surgery
287 BOULEVARD STE 2
POMPTON LAKES, NJ 07444
Morris County (973) 831-5043
KELSEY DUGAN
Social Worker
287 BOULEVARD STE 2
POMPTON PLAINS, NJ 07444
Morris County (845) 393-4723
VALERIA VILLA CEBALLOS LSW
Social Worker
287 BOULEVARD STE 2
POMPTON PLAINS, NJ 07444
Morris County (845) 393-4723

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 Sierra Klaassens's NPI number?

The NPI number for Sierra Klaassens is 1427921097. It was assigned to this individual provider in the NPPES registry on September 29, 2025.

Where is Sierra Klaassens located?

Sierra Klaassens practices at 287 Boulevard Ste 2, Pompton Plains, NJ 07444. The listed phone number is (845) 393-4723.

What is Sierra Klaassens's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

When was this NPI record last updated?

The NPPES record for Sierra Klaassens was last updated on September 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.