NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Michal Dubowski, MD

General Practice Physician in Pine Brook, NJ · enumerated 2020 · practices at Siparadigm LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1104428499

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Registry record

Entity type Individual (Type 1)
Name Dr. Michal Dubowski
Credential MD
Sex Male
Practice address Pine Brook, NJ, 07058
Phone (224) 628-4001
Enumeration date Nov 11, 2020
Last updated in NPPES Jan 31, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 08787533 (CA) Secondary
246ZC0007X Surgical Assistant Technologists, Technicians & Other Technical Service Providers · License 18-172 (WI) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License NJDCATEMP-001670 (NJ) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 2019028021 (MO) Secondary
208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License P129347 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

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Frequently asked questions

Is NPI 1104428499 active?
Yes, as of the latest NPPES snapshot, NPI 1104428499 is active (record last updated 2025-01-31).
How do I verify Michal Dubowski's NPI record?
Cross-check NPI 1104428499 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-31.