Nathaniel M. Phelan, MD

NPI 1225327422ActiveIndividual· Dermatology· Joplin, MO

Dermatology (MD) in Joplin, Missouri, trained at University of Arkansas College of Medicine (class of 2011). 873 Medicare patients in 2024, $1,356,591 paid; nearly all of their 1,342 Part D prescriptions were generic (94%). Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $2,420 in all, mostly food and beverage.

Overview

NPI	1225327422
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	Yes
NPI issued	Mar 29, 2011
Last updated in NPPES	Dec 27, 2024
Certified by provider	Dec 27, 2024

Specialties and licenses

Taxonomy	Code	License	State
Dermatology Primary	207N00000X	2018014111	MO
Dermatology, MOHS-Micrographic Surgery	207ND0101X	2018014111	MO
Dermatology, Procedural Dermatology	207NS0135X	2018014111	MO

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Oct 9, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026	No match	—
New York OMIG · Nov 10, 2026	No match	—
Ohio Medicaid · Nov 10, 2026	No match	—
Pennsylvania Medicheck · Nov 10, 2026	No match	—
Washington HCA · Nov 10, 2026	No match	—

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

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Dermatology (MO)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	873
Services billed	11,237 across 89 procedure codes
Paid by Medicare	$1,356,591

Part D prescriptions in 2024

Prescriptions (claims)	1,342 · 1,738 30-day fills
Patients	432
Total drug cost	$429,677
Generic share	94% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Arkansas College of Medicine
Graduation year	2011
Medicare specialty	Dermatology
Secondary specialties	Micrographic Dermatologic Surgery (Mds)