Physician Profile
Unclaimed ProfileAbout GREGG
Patrick J Gregg, MD practises ophthalmology in Roseburg, OR. Patrick is a 1998 graduate of Drexel University College of Medicine.
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. Gregg specialise in?
Dr. Gregg is an ophthalmology in Roseburg, OR. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where is Dr. Gregg located?
Dr. Gregg is listed at 341 MEDICAL LOOP SUITE 120, Roseburg, OR 97471. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Gregg's phone number?
The number on file is (541) 672-4470. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Gregg?
Dr. Gregg's National Provider Identifier is 1346224201. 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. Gregg go to medical school?
Dr. Gregg attended Drexel University College of Medicine, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Gregg have?
Dr. Gregg has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Gregg do most often?
According to Medicare billing data, Dr. Gregg performs procedures including removal of cataract with insertion of prosthetic lens; reads or performs imaging such as ultrasound scan of cornea to determine thickness and ultrasound scan to determine eye length and lens power; provides treatments such as imaging of optic nerve and imaging of retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Gregg's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gregg. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (541) 672-4470
- Email not available
Practice Locations
341 MEDICAL LOOP SUITE 120
Roseburg, OR 97471
Procedures Most Often Billed to Medicare
1,188 services · 926 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
27 |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
25 |
| Ultrasound scan to determine eye length and lens power | Imaging | 76519 |
22 |
| Ultrasound scan to determine eye length and lens power | Imaging | 76519 |
12 |
| Imaging of optic nerve | Treatment | 92133 |
161 |
| Imaging of retina | Treatment | 92134 |
147 |
| Exam of visual field with extended testing | Treatment | 92083 |
109 |
| Established patient complete exam of visual system | Treatment | 92014 |
57 |
| Established patient problem focused exam of visual system | Treatment | 92012 |
22 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
361 |
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 ophthalmology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other ophthalmology specialists in Roseburg 4
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Drexel University College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at Drexel University College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in OR 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.