Doctor profile · Federal record

Dr. William Freiberg

Neurology Physician (CMS: Neurology) · Pittsburgh, PA

  • NPI 1154579100
  • Accepts Medicare
  • MIPS 92.5 / 100 · 2023
  • 18 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4815 Liberty Ave Ste 439
Pittsburgh, PA 152242156
(412) 578-3925

Credentials & registration

NPPES · NUCC
NPI registered
September 2008 — 18 yrs on file
Profile last updated
May 24, 2021
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
2084N0400X — NUCC code
State license (1)
Pennsylvania #OS016154

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154579100. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
201
Distinct HCPCS
4
Medicare allowed
$23,300
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 101 100 $170
95816 Measurement of brain wave activity (eeg), awake and drowsy 44 44 $55
95819 Measurement of brain wave activity (eeg), awake and asleep 28 28 $55
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 28 18 $78

In context: peer comparison

Among 37 peers in this city , average services per provider: 319. This provider delivers 0.6× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Freiberg's medical specialty?
Dr. William Freiberg practices Neurology Physician in Pittsburgh, PA.
Where does Dr. William Freiberg practice?
Dr. William Freiberg practices at 4815 Liberty Ave Ste 439, Pittsburgh, PA 152242156. Office phone: 4125783925.
What is Dr. William Freiberg's NPI?
Dr. William Freiberg's National Provider Identifier (NPI) is 1154579100, issued by NPPES.
Does Dr. William Freiberg accept Medicare assignment?
Yes. Dr. William Freiberg accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Freiberg commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Measurement of brain wave activity (eeg), awake and drowsy (HCPCS 95816); Measurement of brain wave activity (eeg), awake and asleep (HCPCS 95819). Source: CMS Medicare Physician & Other Practitioners file.