Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marek Belz, M.D.
Psychiatry Physician in Summit, NJ · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1073732699
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Registry record
Entity type Individual (Type 1)
Name Marek Belz
Credential M.D.
Sex Male
Practice address 19 Prospect St, Summit, NJ, 07901
Phone (908) 277-9722
Enumeration date Apr 24, 2007
Last updated in NPPES Aug 6, 2014
Taxonomy & licenses
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 25MA09259100 (NJ) Primary
2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License 25MA09259100 (NJ) Secondary
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.
Frequently asked questions
Where does Marek Belz practice?
The practice location on file with NPPES is in Summit, NJ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marek Belz?
The National Provider Identifier (NPI) for Marek Belz is 1073732699, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Summit Oaks Hospital Inc Psychiatric Hospital · Summit, NJ NPI 1205880200 Jayakanthi Dealwis Psychiatry Physician · Summit, NJ NPI 1245285030 Chowdhury Azam Psychologist · Summit, NJ NPI 1922053792 Donna Vickery Psychologist · Summit, NJ NPI 1255373841 Indra Cidambi Psychiatry Physician · Summit, NJ NPI 1528097631 Evangelos Christodoulou Psychiatry Physician · Summit, NJ NPI 1942232517 Psi Summit Professional Group Psychiatry Physician · Summit, NJ NPI 1043404650 Summit Oaks Hospital, Inc Psychiatry Physician · Summit, NJ NPI 1659517464
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-06.