1. Home
  2. Directory
  3. New Jersey
  4. Bayonne
  5. Internal Medicine
  6. NPI Profile

DR. JOHN C HAHN M.D.
NPI 1538272091
Internal Medicine - Gastroenterology in Bayonne, NJ

Active since August 17, 2006PECOS EnrolledAccepts Medicare Assignment
534 AVENUE E STE 1C, BAYONNE, NJ 07002(201) 823-0450(201) 823-3311 Get Directions Write a Review

NPPES record last updated: June 29, 2023. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Dr. John C Hahn M.d. NPPES

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

DR. JOHN C HAHN M.D. (NPI 1538272091) is an individual gastroenterology provider in Bayonne, New Jersey, licensed in New Jersey (25MA04877800) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Carepoint Health - Bayonne Medical Center, and is a graduate of Rutgers New Jersey Medical School (1985).

NPPES Registry Identity

NPI1538272091
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. JOHN C HAHNCredential: M.D.
Location Address534 AVENUE E STE 1CBayonne, NJ 07002-3987
Mailing AddressPo Box 416457Boston, MA 02241-6457 · (844) 362-1735 · Fax (973) 290-7495
Phone(201) 823-0450
Fax(201) 823-3311
Sole ProprietorYes
Medical School CMSRutgers New Jersey Medical SchoolGraduated 1985
Enumeration DateAugust 17, 2006
Last NPPES UpdateJune 29, 2023
NPPES CertifiedJune 29, 2023
✔ NPI 1538272091 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in NJ · 25MA04877800
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.
Also ListedSpecialistTaxonomy 174400000X · License MA48778 (NJ)
534 AVENUE E STE 1C, Bayonne, NJ 07002
Open in Google Maps ↗

Other Identifiers 1

Medicaid3416909NJ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.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

Dr. John C Hahn 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 ID6002851037
PECOS Enrollment IDI20050621001001
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 11

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
236 services180 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.
87 services74 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
62 services62 patients
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.
47 services47 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.
33 services33 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.
22 services22 patients

Hospital Affiliations CMS Care Compare

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

Carepoint Health - Bayonne Medical Center

Acute Care Hospitals · Bayonne, NJ
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310025
Location29 East 29th StBayonne, NJ 07002 · Hudson County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07002 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
$144.86 typical visit price
range $63.84 – $190.92
Typical copayment $36.21 (range $15.96 – $47.73)
Most-billed visit code 99204
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Ostomy skin barrier, with flange (solid, flexible or accordion), without built-in convexity, 4 x 4 inches or smaller, each A4414
DME-Orthotic Devices · category DF010N
1 supplier12 claims240 services$4.74 avg. paid by Medicare
Ostomy pouch, closed; for use on barrier with non-locking flange, with filter (2 piece), each A4419
DME-Orthotic Devices · category DF010N
1 supplier12 claims720 services$1.67 avg. paid by Medicare
Ostomy pouch, drainable; for use on barrier with non-locking flange, with filter (2 piece system), each A4425
DME-Orthotic Devices · category DF010N
1 supplier12 claims240 services$3.46 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Hahn's NPI number?

The NPI number for John Hahn is 1538272091. It was assigned to this individual provider in the NPPES registry on August 17, 2006.

Where is John Hahn located?

John Hahn practices at 534 Avenue E Ste 1C, Bayonne, NJ 07002. The listed phone number is (201) 823-0450.

What is John Hahn's specialty?

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

Is John Hahn enrolled in Medicare?

Yes. John Hahn 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 Hahn accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list John Hahn 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 Hahn affiliated with any hospitals?

According to CMS data, John Hahn is affiliated with Carepoint Health - Bayonne Medical Center.

When was this NPI record last updated?

The NPPES record for John Hahn was last updated on June 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.