Doctor profile · Federal record

Dr. William Niehaus, MD

Physical Medicine & Rehabilitation Physician (CMS: Physical Medicine and Rehabilitation) · Student in an Organized Health Care Education/Training Program · Aurora, CO

  • NPI 1346539517
  • Accepts Medicare
  • MIPS 86.1 / 100 · 2023
  • 15 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
12631 E. 17Th Ave., Academic Office One, Mail Stop F493 C/O Mallory Pridy
Aurora, CO 80045
(720) 583-4287
fax (888) 310-3542

Credentials & registration

NPPES · NUCC
NPI registered
March 2011 — 15 yrs on file
Profile last updated
July 17, 2015
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
208100000X — NUCC code
State license (1)
Colorado #DR.0052588

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1346539517. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
407
Distinct HCPCS
9
Medicare allowed
$38,634
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 196 85 $80
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 57 35 $120
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 45 45 $175
99238 Hospital discharge day management, 30 minutes or less 23 23 $82
95885 Needle measurement of electrical activity in arm or leg muscles, limited study 20 15 $18
99214 Established patient office or other outpatient visit, 30-39 minutes 18 17 $98
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 18 17 $131
95886 Needle measurement of electrical activity in arm or leg muscles, complete study 17 14 $45
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 13 13 $84

In context: peer comparison

Among 14 peers in this city , average services per provider: 116. This provider delivers 3.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
62
Patients
0
Total drug cost
$14,999
Drug Type Claims Patients Total cost
Gabapentin Generic 28 0 $882
Baclofen Generic 18 0 $826
Eliquis (Apixaban) Brand 16 0 $13,291

Frequently asked questions

Auto-generated from federal data
What is Dr. William Niehaus's medical specialty?
Dr. William Niehaus practices Physical Medicine & Rehabilitation Physician in Aurora, CO.
Where does Dr. William Niehaus practice?
Dr. William Niehaus practices at 12631 E. 17Th Ave., Academic Office One, Aurora, CO 80045. Office phone: 7205834287.
What is Dr. William Niehaus's NPI?
Dr. William Niehaus's National Provider Identifier (NPI) is 1346539517, issued by NPPES.
Does Dr. William Niehaus accept Medicare assignment?
Yes. Dr. William Niehaus accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Niehaus commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.