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LEVEL ONE EMERGENCY PHYSICIANS LLC
NPI 1528790193
Emergency Medicine in Denison, TX

Active since June 30, 2022
5016 S US HIGHWAY 75, DENISON, TX 75020(903) 416-4000(903) 416-4419 Get Directions Write a Review

NPPES record last updated: February 2, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 24, 2023, Feb 19, 2023, Feb 7, 2023 and 2 more (5 updates tracked since 2022).

About Level One Emergency Physicians Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LEVEL ONE EMERGENCY PHYSICIANS LLC (NPI 1528790193) is a healthcare organization registered as an emergency medicine in Denison, Texas and active in the NPI registry since June 2022. The organization lists Gregory M Keelen, Ceo, as its authorized official.

NPPES Registry Identity

NPI1528790193
Entity TypeOrganization
Primary Taxonomy207P00000X
Legal Business NameLEVEL ONE EMERGENCY PHYSICIANS LLC
Location Address5016 S US HIGHWAY 75Denison, TX 75020-4584
Mailing Address5900 Balcones Dr Ste 16327Austin, TX 78731-4257 · (214) 433-9602
Phone(903) 416-4000
Fax(903) 416-4419
Organization SubpartNo
Authorized OfficialGregory M KeelenCeo · (214) 433-9602
Enumeration DateJune 30, 2022
Last NPPES UpdateFebruary 2, 20245 updates tracked since enumeration
NPPES CertifiedFebruary 2, 2024
✔ NPI 1528790193 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedEmergency Medicine · Emergency Medical ServicesTaxonomy 207PE0004X
Also ListedPhysician AssistantTaxonomy 363A00000X
Also ListedNurse PractitionerTaxonomy 363L00000X
5016 S US HIGHWAY 75, Denison, TX 75020
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Level One Emergency Physicians Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

67

Medicare enrollment records show 67 clinicians reassign Medicare billing to Level One Emergency Physicians LLC, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 17 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 4

Emergency Medicine41
Nurse Practitioner13
Family Practice11
Internal Medicine2

Nearest to this location (20)

See all 67
Mallory Earthman, APRN
Nurse Practitioner
NPI 1912660762
5016 US HWY 75
Denison, TX 75020
(903) 416-4100
✔ PECOS✔ Accepts MedicareSame address
Gregory Keelen, DO
Emergency Medicine
NPI 1811905227
5016 US-75 TMC EMERGENCY DEPARTMENT
Denison, TX 75020
(214) 433-9602
✔ PECOS✔ Accepts MedicareSame address
Seungwhan Roh, MD
Emergency Medicine
NPI 1598260978
5016 US HWY 75
Denison, TX 75020
(903) 416-4000
✔ PECOS✔ Accepts MedicareSame address
Jerome Lindsay, M.D.
Emergency Medicine
NPI 1649485434
5016 SOUTH US HWY 75
Denison, TX 75020
(903) 416-4000
✔ PECOS✔ Accepts MedicareSame address
Kevin Guan, MD
Emergency Medicine
NPI 1295477271
5016 S US HIGHWAY 75
Denison, TX 75020
(903) 416-4000
✔ PECOS✔ Accepts MedicareSame address
Ashley Trowbridge, NP
Nurse Practitioner
NPI 1538526454
5012 S US HIGHWAY 75 STE 110
Denison, TX 75020
(903) 416-6200
✔ PECOS✔ Accepts Medicare0.1 mi
Alec Harvey, FNP
Nurse Practitioner
NPI 1063184372
4226 N US HIGHWAY 75
Sherman, TX 75090
(903) 487-0857
✔ PECOS✔ Accepts Medicare2.2 mi
Aristotle Callado, DO
Family Practice
NPI 1144843970
809 GALLAGHER DR STE D
Sherman, TX 75090
(903) 771-2846
✔ PECOS✔ Accepts Medicare2.8 mi
Tanner Anderson
Nurse Practitioner
NPI 1902346109
3126 W FM 120
Denison, TX 75020
(903) 416-7544
✔ PECOS✔ Accepts Medicare3.6 mi
Hannah Martin
Nurse Practitioner
NPI 1508456179
900 N ARMSTRONG AVE
Denison, TX 75020
(903) 465-2440
✔ PECOS✔ Accepts Medicare4.4 mi
Anthony Beaverson, M.D.
Emergency Medicine
NPI 1275518250
500 N HIGHLAND AVE
Sherman, TX 75092
(972) 870-4205
✔ PECOS5.5 mi
Alfonso Cardenas, MD
Emergency Medicine
NPI 1609899475
500 N HIGHLAND AVE
Sherman, TX 75092
(903) 870-4609
✔ PECOS5.5 mi
Mona Jemison, FNP, ENP
Nurse Practitioner
NPI 1104650845
500 N HIGHLAND AVE
Sherman, TX 75092
(903) 870-4611
✔ PECOS✔ Accepts Medicare5.5 mi
David Peterson, FNP
Nurse Practitioner
NPI 1902912975
500 N HIGHLAND AVE
Sherman, TX 75092
(903) 870-4609
✔ PECOS✔ Accepts Medicare5.5 mi
Junior Taylor, MD
Internal Medicine
NPI 1417205782
500 N HIGHLAND AVE
Sherman, TX 75092
(512) 730-3060
✔ PECOS✔ Accepts Medicare5.5 mi
Jerry Bennett, MD
Family Practice
NPI 1699768119
706 LEGEND LN
Sherman, TX 75092
(903) 891-2139
✔ PECOS✔ Accepts Medicare5.8 mi
Amanda Mcdaniels
Nurse Practitioner
NPI 1295378966
111 E FM 120 STE 104
Pottsboro, TX 75076
(903) 786-3911
✔ PECOS✔ Accepts Medicare6.0 mi
Ali Rowland, APRN-CNP
Nurse Practitioner
NPI 1316601875
901 W MAIN ST
Durant, OK 74701
(580) 634-2931
✔ PECOS✔ Accepts Medicare23 mi
Robert Curtis, MD
Emergency Medicine
NPI 1134179484
2710 HACKBERRY DR
Anna, TX 75409
(214) 831-2600
✔ PECOS24 mi
Skye Haggard, MSN, APRN, FNP-C
Nurse Practitioner
NPI 1366128969
434 COUNTY ROAD 3000
Dodd City, TX 75438
(903) 456-4765
✔ PECOS31 mi
See all 67 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Level One Emergency Physicians LLC's NPI number?

The NPI number for Level One Emergency Physicians LLC is 1528790193. It was assigned to this organization in the NPPES registry on June 30, 2022.

Where is Level One Emergency Physicians LLC located?

Level One Emergency Physicians LLC is located at 5016 S Us Highway 75, Denison, TX 75020. The listed phone number is (903) 416-4000.

What is Level One Emergency Physicians LLC's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Level One Emergency Physicians LLC enrolled in Medicare?

Yes. Level One Emergency Physicians LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Level One Emergency Physicians LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 67 clinicians in 4 Medicare specialties reassign their Medicare billing to Level One Emergency Physicians LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Emergency Medicine (41), Nurse Practitioner (13) and Family Practice (11). Of these, 5 practice at this address and 17 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Level One Emergency Physicians LLC was last updated on February 2, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.