Mark Olesnicky, MD
NPI 1770503617 · Internal Medicine Physician · Florham Park, NJ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Olesnicky, MD is a Internal Medicine Physician provider in Florham Park, NJ (NPI 1770503617).
Provider details
- NPI number
- 1770503617
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 27783 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2010-05-26
Frequently asked questions
- What is Mark Olesnicky's NPI number?
- Mark Olesnicky's National Provider Identifier (NPI) is 1770503617, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Olesnicky's specialty?
- Mark Olesnicky is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Olesnicky located?
- Mark Olesnicky's practice location on file with NPPES is 135 Columbia Trnpk, Florham Park, NJ 07932.
- What is Mark Olesnicky's phone number?
- The practice phone number listed in the NPPES registry for Mark Olesnicky is (973) 822-3693.
- Does Mark Olesnicky accept Medicare?
- Mark Olesnicky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Olesnicky's NPI active?
- Yes — Mark Olesnicky's NPI (1770503617) is active in the NPPES registry as of the last update on 2010-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.