Nolan Michael Giehl, M.D.

NPI 1538600895ActiveIndividual· Internal Medicine, Nephrology· Woodland Hills, CA

Internal Medicine, Nephrology (M.D.) in Woodland Hills, California, trained at University of California, Davis School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $194,465 for 1,933 claims, against $3,744 paid for services in 2024. Vantive US Healthcare LLC reported $18.27 in payments in 2025, mostly food and beverage.

Overview

NPI	1538600895
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	Yes
NPI issued	Mar 19, 2017
Last updated in NPPES	Sep 2, 2022
Certified by provider	Sep 2, 2022

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Nephrology Primary	207RN0300X	A157538	CA
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 - Internal Medicine (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	21
Services billed	40 across 7 procedure codes
Paid by Medicare	$3,744

Part D prescriptions in 2024

Prescriptions (claims)	1,933 · 5,609 30-day fills
Patients	416
Total drug cost	$194,465
Generic share	85% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of California, Davis School of Medicine
Graduation year	2017
Medicare specialty	Internal Medicine
Secondary specialties	Nephrology
Telehealth	Offers telehealth