Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Michael John Jaronczyk, MD

Individual provider Surgery Physician · NPI 1710203914

Michael John Jaronczyk, MD practises General Surgery in Lakewood, New Jersey. Qualified in 2010, 16 years ago. Practices with Barnabas Health Medical Group PC, a 1,025-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut and New Jersey.

Years since qualifying
16
Licensed in
CT, NJ
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

101 Prospect St Ste 214
Lakewood, NJ 08701-5003
Phone: (732) 937-8939
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 114 Woodland St, Hartford, CT 06105-1208 — (860) 714-4000

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 25MA09700800 (NJ)
Surgery Physician Taxonomy 208600000X · Licence 55233 (CT)

Record details

NPI number1710203914
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 13, 2010
Last updated in NPPESApril 12, 2024
Certification dateApril 12, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Barnabas Health Medical Group Pc — 1025 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of tissue 33 times · 74th percentile
Hernia repair (minimally invasive) 11 times · 73rd percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 53 times · 64th percentile
Hernia repair - groin (open) 1–10 times
Melanoma (skin cancer) excision 1–10 times
Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients298
Services billed 1,174 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Education $5,639 5 payments · educational material or training, not a fee
Travel and Lodging $669 2 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $585 21 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Barnabas Health Medical Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1025 clinicians in the practice; 12 are shown here.

Other providers in Lakewood