Physician Profile
Unclaimed ProfileAbout O'BRIEN
Gregory J O'Brien, O.D. is a healthcare provider in Tahlequah, OK specialising in optometry. Gregory trained at Southern California College of Optometry, graduating in 2007. Gregory is also listed as specialising in optometrist.
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 does Dr. O'Brien specialise in?
Dr. O'Brien is an optometry in Tahlequah, OK. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPTOMETRY”.
NPI registry
Where is Dr. O'Brien located?
Dr. O'Brien is listed at 1001 N GRAND AVE, Tahlequah, OK 74464. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. O'Brien's phone number?
The number on file is (918) 444-4000. 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 1669635751. 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
Where did Dr. O'Brien go to medical school?
Dr. O'Brien attended Southern California College of Optometry, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. O'Brien have?
Dr. O'Brien has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
What does Dr. O'Brien do most often?
According to Medicare billing data, Dr. O'Brien provides treatments such as established patient complete exam of visual system and exam of visual field with extended testing, alongside routine visits and testing. 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
- (918) 444-4000
- Email not available
Practice Locations
1001 N GRAND AVE
Tahlequah, OK 74464
Procedures Most Often Billed to Medicare
96 services · 66 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient complete exam of visual system | Treatment | 92014 |
20 |
| Exam of visual field with extended testing | Treatment | 92083 |
17 |
| Imaging of retina | Treatment | 92134 |
16 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
43 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other optometry specialists at this location 8
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.
Trained at Southern California College of Optometry 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2007 at Southern California College of Optometry 8
Providers who graduated from the same medical school in the same year.
Also performs Established patient complete exam of visual system 8
Providers in OK 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.