Crystal Lynn Atwood, MD

NPI 1104054337ActiveIndividual· Hospitalist· Saint Louis, MO

Hospitalist (MD) in Saint Louis, Missouri, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 2009). 87 Medicare patients in 2024, $18,754 paid; nearly all of their 78 Part D prescriptions were generic (92%). Janssen Scientific Affairs, LLC was the largest of 3 companies reporting payments in 2025, $333.32 in all, mostly food and beverage.

Overview

NPI	1104054337
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Jun 25, 2009
Last updated in NPPES	Apr 15, 2025

Specialties and licenses

Taxonomy	Code	License	State
Hospitalist Primary	208M00000X	2012018772	MO

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 - Hospitalist (MO)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	87
Services billed	279 across 12 procedure codes
Paid by Medicare	$18,754

Part D prescriptions in 2024

Prescriptions (claims)	78 · 79 30-day fills
Patients	13
Total drug cost	$3,784
Generic share	92% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Graduation year	2009
Medicare specialty	Hospitalist
Secondary specialties	Internal Medicine