Gregg Kaiser, MD
NPI 1386627925 · Ophthalmology Physician · Greenville, SC
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregg Kaiser, MD is a Ophthalmology Physician provider in Greenville, SC (NPI 1386627925).
Provider details
- NPI number
- 1386627925
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 19191 (SC)
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
8,986 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) |
|---|---|---|
| Imaging of Retina92134 | 3,328 | $37 |
| Established Patient Problem Focused Exam of Visual System92012 | 2,541 | $82 |
| Injection of Drug Into Eye67028 | 2,092 | $107 |
| Established Patient Complete Exam of Visual System92014 | 615 | $116 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 251 | $84 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 109 | $157 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 166 | 40 |
| Prednisolone Acetate | 152 | 96 |
| Ofloxacin | 64 | 57 |
| Timolol Maleate | 50 | 19 |
| Erythromycin Basebrand: Erythromycin | 46 | 21 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 34 | 15 |
| Brimonidine Tartrate | 26 | 11 |
| Ketorolac Tromethamine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$373 across 15 records (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
- 2005-11-29
- Last updated
- 2007-10-29
Frequently asked questions
- What is Gregg Kaiser's NPI number?
- Gregg Kaiser's National Provider Identifier (NPI) is 1386627925, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregg Kaiser's specialty?
- Gregg Kaiser is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregg Kaiser located?
- Gregg Kaiser's practice location on file with NPPES is 1126 Grove Rd, Greenville, SC 29605-4620.
- What is Gregg Kaiser's phone number?
- The practice phone number listed in the NPPES registry for Gregg Kaiser is (864) 233-5722.
- Does Gregg Kaiser accept Medicare?
- Gregg Kaiser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregg Kaiser's NPI active?
- Yes — Gregg Kaiser's NPI (1386627925) is active in the NPPES registry as of the last update on 2007-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.