Prachi Avinash Karnik, M.D.

NPI 1134131725ActiveIndividual· Internal Medicine· El Cajon, CA

Internal Medicine (M.D.) in El Cajon, California, trained at University of California, San Francisco School of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $863,406 for 6,801 claims, against $44,940 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 3 companies reporting payments in 2025, $505.18 in all, mostly food and beverage.

Overview

NPI	1134131725
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Aug 12, 2006
Last updated in NPPES	Jun 19, 2013

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	A83228	CA

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 (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	149
Services billed	1,836 across 36 procedure codes
Paid by Medicare	$44,940

Part D prescriptions in 2024

Prescriptions (claims)	6,801 · 16,981 30-day fills
Patients	711
Total drug cost	$863,406
Generic share	85% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of California, San Francisco School of Medicine
Graduation year	2001
Medicare specialty	Internal Medicine
Telehealth	Offers telehealth