Doctor profile · Federal record

Dr. William O'Loughlin, DC

Chiropractor (CMS: Chiropractic) · Gaithersburg, MD

  • NPI 1225127384
  • 29 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
811 Russell Ave Ste B
Gaithersburg, MD 208793524
(301) 987-0111
fax (301) 987-0114

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
December 16, 2019
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
111N00000X — NUCC code
State license (1)
Maryland #S01866

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1225127384. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
378
Distinct HCPCS
1
Medicare allowed
$16,673
HCPCS Description Services Patients Avg allowed
98941 Chiropractic manipulative treatment, 3-4 spinal regions 378 38 $44

In context: peer comparison

Among 6 peers in Gaithersburg Chiropractor, average services per provider: 459. This provider delivers 0.8× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. William O'Loughlin's medical specialty?
Dr. William O'Loughlin practices Chiropractor in Gaithersburg, MD.
Where does Dr. William O'Loughlin practice?
Dr. William O'Loughlin practices at 811 Russell Ave Ste B, Gaithersburg, MD 208793524. Office phone: 3019870111.
What is Dr. William O'Loughlin's NPI?
Dr. William O'Loughlin's National Provider Identifier (NPI) is 1225127384, issued by NPPES.
Does Dr. William O'Loughlin accept Medicare assignment?
Dr. William O'Loughlin does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. William O'Loughlin commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941). Source: CMS Medicare Physician & Other Practitioners file.