John Ahrens, MD

NPI 1568443646ActiveIndividual· Internal Medicine· Vineland, NJ

Internal Medicine (MD) in Vineland, New Jersey, trained at Temple University School of Medicine (class of 1987). Their prescriptions cost Medicare Part D more than their services did: $552,558 for 3,766 claims, against $201,629 paid for services in 2024. Abbvie Inc. was the largest of 5 companies reporting payments in 2025, $113.77 in all, mostly food and beverage.

Overview

NPI	1568443646
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Nov 7, 2005
Last updated in NPPES	Aug 28, 2023
Certified by provider	Aug 28, 2023

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	MA44278	NJ

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Nov 10, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026	No match	—
New York OMIG · Nov 11, 2026	No match	—
Ohio Medicaid · Nov 11, 2026	No match	—
Pennsylvania Medicheck · Nov 11, 2026	No match	—
Washington HCA · Nov 11, 2026	No match	—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Internal Medicine (NJ)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	850
Services billed	2,632 across 38 procedure codes
Paid by Medicare	$201,629

Part D prescriptions in 2024

Prescriptions (claims)	3,766 · 9,127 30-day fills
Patients	521
Total drug cost	$552,558
Generic share	89% of claims

Medicare sources and data years

Education and affiliations

Medical school	Temple University School of Medicine
Graduation year	1987
Medicare specialty	Internal Medicine
Secondary specialties	Infectious Disease
Telehealth	Offers telehealth