Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Michael E. Kostelnik, MD PA

Organization Internal Medicine Physician · NPI 1508049115

Michael E. Kostelnik, MD PA is an Internal Medicine Physician in Succasunna, New Jersey. Licensed in New Jersey. Registered with an NPI since 2007.

Licensed in
NJ
In the registry since
2007
What do these letters mean?
PA — Professional association
A form of business registration, not a clinical qualification.

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Practice location Address checks out

52 Main St Unit One
Succasunna, NJ 07876-1462
Phone: (973) 584-1405
Fax: (973) 584-6889
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 25MA26309 (NJ)

Record details

NPI number1508049115
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Michael Kostelnik — Owner · (973) 584-1405
NPI enumeratedDecember 6, 2007
Last updated in NPPESDecember 6, 2007
Mailing address52 Main St, Unit One, Succasunna, NJ 07876-1462

Other providers in Succasunna