Ariana Clemencia Klein, MD

NPI 1619331014ActiveIndividual· Internal Medicine· Houston, TX

Internal Medicine (MD) in Houston, Texas, trained at University of Texas Medical School at Houston (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $193,745 for 2,160 claims, against $9,983 paid for services in 2024. Averitas Pharma Inc. reported $41.29 in payments in 2025, mostly food and beverage.

Overview

NPI	1619331014
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Apr 12, 2016
Last updated in NPPES	Dec 15, 2020
Certified by provider	Dec 15, 2020

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	R5608	TX
Student in an Organized Health Care Education/Training Program	390200000X	—	—

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 - Family Practice (TX)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	55
Services billed	155 across 24 procedure codes
Paid by Medicare	$9,983

Part D prescriptions in 2024

Prescriptions (claims)	2,160 · 4,329 30-day fills
Patients	230
Total drug cost	$193,745
Generic share	86% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Texas Medical School at Houston
Graduation year	2016
Medicare specialty	Family Practice
Secondary specialties	Internal Medicine, Pediatric Medicine
Telehealth	Offers telehealth