Mark Theodore Olesnicky, MD
Internal Medicine Physician · Florham Park, NJ
Mark Theodore Olesnicky, MD is an internal medicine physician with a practice address in Florham Park, New Jersey, and NPI 1770503617, issued on Jul 21, 2006. Check the license (New Jersey 27783, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mark Theodore Olesnicky
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 27783 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 135 Columbia Trnpk, Florham Park, NJ 07932
- Phone
- (973) 822-3693
- Enumerated
- Jul 21, 2006
- Record last updated
- May 26, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (973) 822-3321
- Medicaid ID
- 1642707 NJ
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Verify Mark Theodore Olesnicky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 27783Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
74 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Mark Theodore Olesnicky among 4,632 internal medicine physician records in New Jersey
Mark Theodore Olesnicky, MD is one of 4,632 internal medicine physician records with a practice address in New Jersey. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2010 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 internal medicine physician records list a practice address in Florham Park
They are 23 of the 701 NPPES records with a practice address in Florham Park, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Florham Park → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Charles Castellano, MDFlorham Park, NJ 079321396845632
- Eric Digiacomo, MDFlorham Park, NJ 079321467431312
- Robert Freid, MDFlorham Park, NJ 079321659474104
- Richard Laudadio, M.D.Florham Park, NJ 079321386639185
- Zhexiang Li, MDFlorham Park, NJ 079321710929898
- Steven Pally, D.O.Florham Park, NJ 079321114921079
- Ashish Parikh, M.D.Florham Park, NJ 079321821027533
- Arthur Paulina, MDFlorham Park, NJ 079321356311328
Common questions
What is Mark Theodore Olesnicky, MD's NPI number?
Mark Theodore Olesnicky, MD's National Provider Identifier (NPI) is 1770503617, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Theodore Olesnicky, MD located?
The NPPES record lists a practice address at 135 Columbia Trnpk, Florham Park, NJ, 07932. Phone: (973) 822-3693. Providers update this record themselves, so call before visiting.
How can I verify Mark Theodore Olesnicky, MD's license?
NPPES lists New Jersey license number 27783, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Theodore Olesnicky, MD prescribe under Medicare Part D?
In 2024, Mark Theodore Olesnicky, MD had 74 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.