John Affeldt, MD
NPI 1275523375 · Ophthalmology Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Affeldt, MD is a Ophthalmology Physician provider in Loma Linda, CA (NPI 1275523375).
Provider details
- NPI number
- 1275523375
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G38490 (CA)
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
857 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 Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 517 | $58 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 179 | $93 |
| Closure of Tear Duct Opening Using Plug68761 | 65 | $152 |
| Repair Tear Duct Opening By Heat, Tying, Or Laser Surgery68760 | 42 | $202 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 36 | $111 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Loteprednol Etabonate | 377 | 156 |
| Fluorometholone | 315 | 100 |
| Cyclosporinebrand: Restasis | 228 | 79 |
| Prednisolone Acetate | 142 | 52 |
| Erythromycin Basebrand: Erythromycin | 129 | 34 |
| Cyclosporine | 118 | 44 |
| Loteprednol Etabonatebrand: Eysuvis | 111 | 47 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$243,378 across 301 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
- 2005-10-28
- Last updated
- 2018-03-06
Frequently asked questions
- What is John Affeldt's NPI number?
- John Affeldt's National Provider Identifier (NPI) is 1275523375, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Affeldt's specialty?
- John Affeldt is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Affeldt located?
- John Affeldt's practice location on file with NPPES is 11370 Anderson St Ste 1800, Loma Linda, CA 92354-3450.
- What is John Affeldt's phone number?
- The practice phone number listed in the NPPES registry for John Affeldt is (909) 558-2154.
- Does John Affeldt accept Medicare?
- John Affeldt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Affeldt's NPI active?
- Yes — John Affeldt's NPI (1275523375) is active in the NPPES registry as of the last update on 2018-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.