JOHN T GENECZKO JR. M.D.
NPI 1902875727
Internal Medicine - Gastroenterology in Durham, NC

Active since March 15, 2006PECOS EnrolledAccepts Medicare Assignment
200 TRENT DR, 3662 DUMC, DURHAM, NC 27710(919) 684-1817(919) 681-8147 Get Directions Write a Review

NPPES record last updated: May 28, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About John T Geneczko Jr. M.d. NPPES

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

JOHN T GENECZKO JR. M.D. (NPI 1902875727) is an individual gastroenterology provider in Durham, North Carolina, licensed in Indiana (01036161A) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Duke University Hospital, and is a graduate of University Of Michigan Medical School (1978).

NPPES Registry Identity

NPI1902875727
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameJOHN T GENECZKO JR.Credential: M.D.
Location Address200 TRENT DR, 3662 DUMCDurham, NC 27710-2479
Mailing AddressPo Box 3662Durham, NC 27710-0001 · (919) 684-1817 · Fax (919) 681-8147
Fax(919) 681-8147
Sole ProprietorNo
Medical School CMSUniversity Of Michigan Medical SchoolGraduated 1978
Enumeration DateMarch 15, 2006
Last NPPES UpdateMay 28, 2013
NPI 1902875727 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 IN · 01036161A
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.
200 TRENT DR, Durham, NC 27710

Other Identifiers 8

Medicare PIN100011228IN
MedicaidGE15365010IN
Other9397086IN · Phcs Pid Number
Medicare PIN815500NIN
Medicare UPINC35038IN
Other10825131IN · Caqh Number
Other000000190914IN · Anthem Provider Number
Medicaid100085880IN

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

John T Geneczko Jr. 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 ID3577692854
PECOS Enrollment IDI20100525000573
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.

Areas of Expertise CMS Part B claims

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.
17 services17 patients

Hospital Affiliations CMS Care Compare

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

Duke University Hospital

Acute Care Hospitals · Durham, NC
5/5 CMS rating
OwnershipProprietary
CMS Certification Number340030
Location2100 Erwin RdDurham, NC 27705 · Durham County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27710 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
$125.01 typical visit price
range $54.12 – $165.09
Typical copayment $31.25 (range $13.53 – $41.27)
Most-billed visit code 99204
Established Patient
$95.94 typical visit price
range $17.21 – $134.61
Typical copayment $23.98 (range $4.30 – $33.65)
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.

Neurological Surgery
200 TRENT DR, CLINIC 3-1
DURHAM NC, NC 27710
Internal Medicine (Infectious Disease)
200 TRENT DR, DUMC BOX 3518
DURHAM, NC 27710
Registered Nurse (Diabetes Educator)
200 TRENT DR, DUKE CLINIC 2F/2G
DURHAM, NC 27710
Physician Assistant
200 TRENT DR, BOX 3146
DURHAM, NC 27710
Orthopaedic Surgery
200 TRENT DR
DURHAM, NC 27710
Student in an Organized Health Care Education/Training Program
200 TRENT DR
DURHAM, NC 27710
Internal Medicine (Pulmonary Disease)
200 TRENT DR, DUMC BOX 3315
DURHAM, NC 27710
Internal Medicine
200 TRENT DR
DURHAM, NC 27710

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 Geneczko's NPI number?

The NPI number for John Geneczko is 1902875727. It was assigned to this individual provider in the NPPES registry on March 15, 2006.

Where is John Geneczko located?

John Geneczko practices at 200 Trent Dr 3662 Dumc, Durham, NC 27710. The listed phone number is (919) 684-1817.

What is John Geneczko's specialty?

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

Is John Geneczko enrolled in Medicare?

Yes. John Geneczko 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.

What insurance does John Geneczko accept?

Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee and Blue Cross and Blue Shield of NC list John Geneczko 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 Geneczko affiliated with any hospitals?

According to CMS data, John Geneczko is affiliated with Duke University Hospital.

When was this NPI record last updated?

The NPPES record for John Geneczko was last updated on May 28, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.