Patrick Gregg, MD
NPI 1346224201 · Ophthalmology Physician · Roseburg, OR
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Gregg, MD is a Ophthalmology Physician provider in Roseburg, OR (NPI 1346224201).
Provider details
- NPI number
- 1346224201
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD24348 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,188 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 361 | $132 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 193 | $94 |
| Imaging of Optic Nerve92133 | 161 | $36 |
| Imaging of Retina92134 | 147 | $42 |
| Exam of Visual Field With Extended Testing92083 | 109 | $67 |
| Established Patient Complete Exam of Visual System92014 | 57 | $129 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 734 | 142 |
| Timolol Maleate | 233 | 55 |
| Prednisolone Acetate | 149 | 100 |
| Ciprofloxacin Hcl | 118 | 84 |
| Ketorolac Tromethamine | 107 | 80 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 102 | 24 |
| Brimonidine Tartrate | 94 | 21 |
| Erythromycin Base |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$71 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-05
- Last updated
- 2010-09-07
Frequently asked questions
- What is Patrick Gregg's NPI number?
- Patrick Gregg's National Provider Identifier (NPI) is 1346224201, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Gregg's specialty?
- Patrick Gregg is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Gregg located?
- Patrick Gregg's practice location on file with NPPES is 341 Medical Loop, Roseburg, OR 97471-5540.
- What is Patrick Gregg's phone number?
- The practice phone number listed in the NPPES registry for Patrick Gregg is (541) 672-4470.
- Does Patrick Gregg accept Medicare?
- Patrick Gregg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Gregg's NPI active?
- Yes — Patrick Gregg's NPI (1346224201) is active in the NPPES registry as of the last update on 2010-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.