Doctor profile · Federal record

Dr. William Millsap, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Student in an Organized Health Care Education/Training Program · Dallas, TX

  • NPI 1124448311
  • Accepts Medicare
  • 12 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5201 Harry Hines Blvd, Gradudate Medical Education
Dallas, TX 752357708
(214) 590-8058
Mailing address
Po Box 660599
Dallas, TX 752660599

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
July 2, 2017
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Texas #R2921

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124448311. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
389
Distinct HCPCS
4
Medicare allowed
$63,142
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 248 236 $172
99284 Emergency department visit with moderate level of medical decision making 71 67 $119
99291 Critical care, first 30-74 minutes 51 51 $210
99283 Emergency department visit with low level of medical decision making 19 19 $70

In context: peer comparison

Among 162 peers in Dallas Emergency Medicine Physician, average services per provider: 94. This provider delivers 4.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
609
Patients
604
Total drug cost
$4,760
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 163 160 $667
Ondansetron Odt (Ondansetron) Brand 93 93 $609
Methocarbamol Generic 53 52 $309
Cephalexin Generic 42 42 $377
Naproxen Generic 39 39 $787
Prednisone Generic 37 37 $100
Meclizine Hcl Generic 29 29 $89
Dicyclomine Hcl Generic 28 28 $286
Doxycycline Monohydrate Generic 27 26 $506
Famotidine Generic 26 26 $294

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Millsap's medical specialty?
Dr. William Millsap practices Emergency Medicine Physician in Dallas, TX.
Where does Dr. William Millsap practice?
Dr. William Millsap practices at 5201 Harry Hines Blvd, Dallas, TX 752357708. Office phone: 2145908058.
What is Dr. William Millsap's NPI?
Dr. William Millsap's National Provider Identifier (NPI) is 1124448311, issued by NPPES.
Does Dr. William Millsap accept Medicare assignment?
Yes. Dr. William Millsap accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Millsap commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.