Kelsi Greider-Sideris, M.D.
NPI 1851771497 · Ophthalmology Physician · Vista, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kelsi Greider-Sideris, M.D. is a Ophthalmology Physician provider in Vista, CA (NPI 1851771497).
Provider details
- NPI number
- 1851771497
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 298489 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,099 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 340 | $102 |
| Established Patient Complete Exam of Visual System92014 | 203 | $144 |
| Imaging of Optic Nerve92133 | 104 | $42 |
| Imaging of Retina92134 | 79 | $46 |
| Exam of Visual Field With Extended Testing92083 | 73 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 66 | $143 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 477 | 165 |
| Bimatoprostbrand: Lumigan | 309 | 104 |
| Timolol Maleate | 264 | 77 |
| Erythromycin Basebrand: Erythromycin | 193 | 122 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 175 | 50 |
| Prednisolone Acetate | 94 | 82 |
| Cyclosporinebrand: Restasis | 93 | 47 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$749 across 23 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
Additional practice locations (2)
- 14445 Olive View DrSylmar, CA 91342-1437Phone: (818) 364-1555
- 550 Park AveNew York, NY 10065-7369Phone: (212) 832-9228
Registry dates
- Enumerated
- 2015-06-08
- Last updated
- 2019-12-17
- Certified
- 2019-12-17
Frequently asked questions
- What is Kelsi Greider-Sideris's NPI number?
- Kelsi Greider-Sideris's National Provider Identifier (NPI) is 1851771497, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kelsi Greider-Sideris's specialty?
- Kelsi Greider-Sideris is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Kelsi Greider-Sideris located?
- Kelsi Greider-Sideris's practice location on file with NPPES is 2067 W Vista Way Ste 120, Vista, CA 92083-6032.
- What is Kelsi Greider-Sideris's phone number?
- The practice phone number listed in the NPPES registry for Kelsi Greider-Sideris is (760) 758-2020.
- Does Kelsi Greider-Sideris accept Medicare?
- Kelsi Greider-Sideris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kelsi Greider-Sideris's NPI active?
- Yes — Kelsi Greider-Sideris's NPI (1851771497) is active in the NPPES registry as of the last update on 2019-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.