Active NPI
John P. Czarnecki, M.D.
- Gastroenterology Physician
- Cincinnati, OH
National Provider Identifier
1932198645
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- 35079091
- Practice address
- 2925 Vernon PL
Suite 100
Cincinnati, OH 45219-2425 - Phone
- (513) 751-6667
- Fax
- (513) 872-4553
- NPI assigned
- Oct 14, 2005
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | 35079091 | OH | Primary |
Addresses
Primary practice location
2925 Vernon PL
Suite 100
Cincinnati, OH 45219-2425
Mailing address
2925 Vernon PL Ste 100
Cincinnati, OH 45219-2425
Phone (513) 751-6667
Other practice location 1
272 Hospital Rd Ste 225
Chillicothe, OH 45601-9031
Phone (740) 779-8530
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 02241756 | Medicaid | OH |
Electronic endpoints 2
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | adena.gastro@adena.medicity.net | ||
| Direct Messaging Address | john.czarnecki@gastrohealth.eclinicaldirectplus.com | GCGA Physicians Inc. |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in OH, IL, VT
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 3
Care Compare profile
Medicare Care Compare- Specialty
- Gastroenterology
- Education
- Northwestern University Feinberg Medical School, 1995
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
272 Hospital Rd
Suite 225
Chillicothe, OH 45601-9031
Phone (740) 779-8530
836 W Wellington Ave
Chicago, IL 60657-5147
Phone (773) 975-1600
Hospital & facility affiliations
- Adena Regional Medical Center
- Advocate Illinois Masonic Medical Center
- Porter Hospital Inc
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 54 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 47 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 35079091 | OH | MD | Gastroenterology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Chicago Gastro LLC | Gastroenterology | Current | Accepting new patients |
| Porter Hospital Inc | Current | Accepting new patients | |
| Porter Hospital, Inc | Current | Accepting new patients | |
| Gcga Physicians Inc. | Gastroenterology | Current | Accepting new patients |
| Adena Medical Group LLC | Current | Accepting new patients |
Locations
836 W Wellington Ave
Chicago, IL 60657
Phone (773) 296-7054
2835 N Sheffield Ave
Ste 303
Chicago, IL 60657
Phone (773) 368-3164
272 Hospital Rd
Ste 225
Chillicothe, OH 45601
Phone (740) 779-8530
2925 Vernon Pl
Ste 100
Cincinnati, OH 45219
Phone (513) 872-4555
12340 State Route 104
Waverly, OH 45690
Phone (740) 941-5180
82 Catamount Park
Middlebury, VT 05753
Phone (802) 388-7185
115 Porter Dr
Middlebury, VT 05753
Phone (802) 388-4701
116 Porter Dr
Middlebury, VT 05753
Phone (802) 388-6326
104 Porter Dr
Middlebury, VT 05753
Phone (802) 388-5682
Interoperability endpoints
- jczarnecki604203@direct.uvmhealth.org
Organizations & group practices 5
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Family Medicine Physician
- Chillicothe, OH
- NPI 1235468083
-
- Gastroenterology Physician
- Chicago, IL
- NPI 1548414063
-
- Gastroenterology Physician
- Cincinnati, OH
- NPI 1790851095
-
- Critical Access Hospital
- Middlebury, VT
- NPI 1740291400
-
- Family Medicine Physician
- Middlebury, VT
- NPI 1134457013
Hospital & facility affiliations 19
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Chillicothe, OH
- NPI 1902839673
-
- General Acute Care Hospital
- Chicago, IL
- NPI 1912014564
-
- Family Medicine Physician
- Middlebury, VT
- NPI 1558381889
Hospital
-
- Family Medicine Physician
- Middlebury, VT
- NPI 1144240474
Hospital
-
- Hospice and Palliative Medicine (Family Medicine) Physician
- Middlebury, VT
- NPI 1033340641
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1129248000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1759363200000",
"number": "1932198645",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2925 VERNON PL STE 100",
"city": "CINCINNATI",
"state": "OH",
"postal_code": "452192425",
"telephone_number": "513-751-6667",
"fax_number": "513-872-4553"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2925 VERNON PL",
"address_2": "SUITE 100",
"city": "CINCINNATI",
"state": "OH",
"postal_code": "452192425",
"telephone_number": "513-751-6667",
"fax_number": "513-872-4553"
}
],
"practiceLocations": [
{
"address_1": "272 Hospital Rd Ste 225",
"address_purpose": "LOCATION",
"city": "Chillicothe",
"state": "OH",
"postal_code": "456019031",
"country_code": "US",
"telephone_number": "740-779-8530",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "CZARNECKI",
"first_name": "JOHN",
"middle_name": "P.",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-10-14",
"last_updated": "2025-10-02",
"certification_date": "2025-10-02",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "OH",
"license": "35079091",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "02241756",
"state": "OH"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "adena.gastro@adena.medicity.net",
"affiliation": "N",
"address_1": "272 Hospital Rd Ste 225",
"city": "Chillicothe",
"state": "OH",
"country_code": "US",
"postal_code": "456019031",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "john.czarnecki@gastrohealth.eclinicaldirectplus.com",
"affiliation": "Y",
"endpointDescription": "eCW Direct messaging Address",
"affiliationName": "GCGA Physicians Inc.",
"address_1": "2925 Vernon Pl",
"address_2": "Suite 100",
"city": "Cincinnati",
"state": "OH",
"country_code": "US",
"postal_code": "452192425",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}Other providers in Cincinnati, OH
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 2, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.