1. Home
  2. Directory
  3. Ohio
  4. Cincinnati
  5. Internal Medicine
  6. NPI Profile

DR. JOHN P. CZARNECKI M.D.
NPI 1932198645
Internal Medicine - Gastroenterology in Cincinnati, OH

Active since October 14, 2005PECOS EnrolledAccepts Medicare Assignment
2925 VERNON PL, SUITE 100, CINCINNATI, OH 45219(513) 751-6667(513) 872-4553 Get Directions Write a Review

NPPES record last updated: October 2, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. John P. Czarnecki M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN P. CZARNECKI M.D. (NPI 1932198645) is an individual gastroenterology provider in Cincinnati, Ohio, licensed in Ohio (35079091) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Adena Regional Medical Center, and maintains a secondary practice location in Chillicothe.

NPPES Registry Identity

NPI1932198645
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. JOHN P. CZARNECKICredential: M.D.
Location Address2925 VERNON PL, SUITE 100Cincinnati, OH 45219-2425
Mailing Address2925 Vernon Pl Ste 100Cincinnati, OH 45219-2425 · (513) 751-6667 · Fax (513) 872-4553
Phone(513) 751-6667
Fax(513) 872-4553
Sole ProprietorNo
Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 1995
Enumeration DateOctober 14, 2005
Last NPPES UpdateOctober 2, 2025
NPPES CertifiedOctober 2, 2025
✔ NPI 1932198645 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in OH · 35079091
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
2925 VERNON PL, Cincinnati, OH 45219
Open in Google Maps ↗

Secondary Practice Location 1

Location 1272 Hospital Rd Ste 225Chillicothe, OH 45601-9031 · Phone (740) 779-8530

Other Identifiers 1

Medicaid02241756OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John P. Czarnecki M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9032130208
PECOS Enrollment IDI20100203000057, I20240613001467
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show John Czarnecki reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gcga Physicians Inc.
Same address
Gastroenterology
2925 VERNON PL, SUITE 100
Cincinnati, OH 45219
  • Reassigned Medicare billing, Ohio enrollment
  • 96 clinicians in this Medicare group
NPI 1790851095 (513) 751-6667
Adena Medical Group LLC
84 mi
Family Medicine
272 HOSPITAL RD
Chillicothe, OH 45601
  • Reassigned Medicare billing, Ohio enrollment
  • 763 clinicians in this Medicare group
NPI 1235468083 (740) 779-7500
Chicago Gastro LLC
255 mi
Gastroenterology
945 W GEORGE ST STE 101
Chicago, IL 60657
  • Reassigned Medicare billing, Illinois enrollment
  • 3 clinicians in this Medicare group
NPI 1548414063 (773) 537-0020
Porter Hospital Inc
673 mi
Family Medicine
61 COURT DR, NESHOBE FAMILY MEDICINE
Brandon, VT 05733
  • Reassigned Medicare billing, Vermont enrollment
  • Also billed through NPI 1134457013 (Vermont)
  • 243 clinicians in this Medicare group
NPI 1609896935 (802) 247-3755

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
68 services68 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
67 services56 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
45 services45 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
37 services36 patients
Colorectal cancer screening; colonoscopy on individual at high risk G0105
Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.
37 services37 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
35 services35 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Adena Regional Medical Center

Acute Care Hospitals · Chillicothe, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360159
Location272 Hospital RoadChillicothe, OH 45601 · Ross County
Emergency services Birthing friendly

Porter Hospital, Inc

Critical Access Hospitals · Middlebury, VT
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number471307
Location115 Porter DriveMiddlebury, VT 05753 · Addison County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 45219 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.12 typical visit price
range $54.34 – $166.65
Typical copayment $31.53 (range $13.58 – $41.66)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. KIM RICHARD JURELL M.D.
Internal Medicine (Gastroenterology)
2925 VERNON PL, SUITE 100
CINCINNATI, OH 45219
Hamilton County (513) 751-6667
DR. TERRANCE MICHAEL O'TOOLE JR. D.O
Internal Medicine (Gastroenterology)
2925 VERNON PL, STE 100
CINCINNATI, OH 45219
Hamilton County (513) 751-6667
HSC SURGICAL ASSOCIATES OF CINCINNATI, LLC
Clinic/Center (Ambulatory Surgical)
2925 VERNON PL, SUITE 101
CINCINNATI, OH 45219
Hamilton County (513) 872-4538
DR. MARK E. JONAS M.D.
Internal Medicine (Gastroenterology)
2925 VERNON PL, SUITE 100
CINCINNATI, OH 45219
Hamilton County (513) 751-6667
AMIT GAJERA M.D.
Internal Medicine (Gastroenterology)
2925 VERNON PL, STE 100
CINCINNATI, OH 45219
Hamilton County (513) 751-6667
MICHAEL MARKOW M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
2925 VERNON PL, SUITE 100
CINCINNATI, OH 45219
Hamilton County (513) 569-1310
DR. MICHAEL D. KREINES M.D.
Internal Medicine (Gastroenterology)
2925 VERNON PL, SUITE100
CINCINNATI, OH 45219
Hamilton County (513) 751-6667
DR. MATTHEW ATKINSON M.D.
Internal Medicine (Gastroenterology)
2925 VERNON PL
CINCINNATI, OH 45219
Hamilton County (513) 751-6667

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Czarnecki's NPI number?

The NPI number for John Czarnecki is 1932198645. It was assigned to this individual provider in the NPPES registry on October 14, 2005.

Where is John Czarnecki located?

John Czarnecki practices at 2925 Vernon Pl Suite 100, Cincinnati, OH 45219. The listed phone number is (513) 751-6667.

What is John Czarnecki's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is John Czarnecki enrolled in Medicare?

Yes. John Czarnecki is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for John Czarnecki's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Czarnecki reassigns Medicare benefits to 4 organizations: Gcga Physicians Inc. (Cincinnati, OH), Adena Medical Group LLC (Chillicothe, OH), Chicago Gastro LLC (Chicago, IL) and Porter Hospital Inc (Brandon, VT). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Czarnecki's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Czarnecki accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Anthem Blue Cross and Blue Shield and 2 other insurers list John Czarnecki as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Czarnecki affiliated with any hospitals?

According to CMS data, John Czarnecki is affiliated with Adena Regional Medical Center and Porter Hospital, Inc.

When was this NPI record last updated?

The NPPES record for John Czarnecki was last updated on October 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.