Doctor profile · Federal record

Dr. Nathan Allen, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Pediatric Emergency Medicine (Pediatrics) Physician · Billings, MT

  • NPI 1356676878
  • Accepts Medicare
  • MIPS 92.8 / 100 · 2023
  • 19 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2800 10Th Ave N
Billings, MT 591010703
(406) 238-2500
Additional location
1504 Taub Loop, Ben Taub Emergency Center
Houston, TX 770301608
(773) 873-2626
Mailing address
1504 Taub Loop, Ben Taub Emergency Center
Houston, TX 770301608

Credentials & registration

NPPES · NUCC
NPI registered
October 2009 — 17 yrs on file
Profile last updated
February 8, 2022
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
Texas #N9997 · Illinois #125052986

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1356676878. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
292
Distinct HCPCS
4
Medicare allowed
$47,040
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 198 193 $177
99284 Emergency department visit with moderate level of medical decision making 68 67 $121
99291 Critical care, first 30-74 minutes 14 14 $214
99283 Emergency department visit with low level of medical decision making 12 12 $72

In context: peer comparison

Among 18 peers in Billings Emergency Medicine Physician, average services per provider: 111. This provider delivers 2.6× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Nathan Allen's medical specialty?
Dr. Nathan Allen practices Emergency Medicine Physician in Billings, MT.
Where does Dr. Nathan Allen practice?
Dr. Nathan Allen practices at 2800 10Th Ave N, Billings, MT 591010703. Office phone: 4062382500.
What is Dr. Nathan Allen's NPI?
Dr. Nathan Allen's National Provider Identifier (NPI) is 1356676878, issued by NPPES.
Does Dr. Nathan Allen accept Medicare assignment?
Yes. Dr. Nathan Allen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathan Allen 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.