Physician Profile
Unclaimed ProfileAbout O'BRIEN
William Gerard O'Brien, D.C. practises chiropractic in Glendale Heights, IL. William is also listed as specialising in chiropractor.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. O'Brien's specialty?
Dr. O'Brien is a chiropractic in Glendale Heights, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CHIROPRACTIC”.
NPI registry
Where can I find Dr. O'Brien?
Dr. O'Brien is listed at 320 E ARMY TRAIL RD, Glendale Heights, IL 60139. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. O'Brien?
The number on file is (630) 529-6111. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. O'Brien?
Dr. O'Brien's National Provider Identifier is 1235217795. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. O'Brien's medical education?
Dr. O'Brien attended Other, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. O'Brien have?
Dr. O'Brien has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What is Dr. O'Brien known for?
According to Medicare billing data, Dr. O'Brien provides treatments such as chiropractic manipulative treatment, 3-4 spinal regions. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. O'Brien's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Brien. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (630) 529-6111
- Email not available
Practice Locations
320 E ARMY TRAIL RD
Glendale Heights, IL 60139
Procedures Most Often Billed to Medicare
1,060 services · 76 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Chiropractic manipulative treatment, 3-4 spinal regions | Treatment | 98941 |
1,060 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other chiropractics at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other chiropractics in Glendale Heights 4
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2003 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Chiropractic manipulative treatment, 3-4 spinal regions 8
Providers in IL who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.