John Ladas, M.D. PH.D.
NPI 1992743611 · Ophthalmology Physician · Silver Spring, MD
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Ladas, M.D. PH.D. is a Ophthalmology Physician provider in Silver Spring, MD (NPI 1992743611).
Provider details
- NPI number
- 1992743611
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D. PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- D55937 (MD)
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
4,396 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 | 1,286 | $141 |
| Exam of Visual Field With Extended Testing92083 | 650 | $71 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 649 | $100 |
| Imaging of Optic Nerve92133 | 512 | $38 |
| Imaging of Retina92134 | 498 | $44 |
| Established Patient Complete Exam of Visual System92014 | 295 | $141 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 243 | 86 |
| Timolol Maleate | 102 | 38 |
| Moxifloxacin Hclbrand: Moxifloxacin | 97 | 54 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 78 | 23 |
| Loteprednol Etabonate | 70 | 39 |
| Prednisolone Acetate | 60 | 33 |
| Bimatoprostbrand: Lumigan | 42 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$291 across 11 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
- 2006-06-03
- Last updated
- 2023-11-08
- Certified
- 2023-11-08
Frequently asked questions
- What is John Ladas's NPI number?
- John Ladas's National Provider Identifier (NPI) is 1992743611, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Ladas's specialty?
- John Ladas is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Ladas located?
- John Ladas's practice location on file with NPPES is 2101 Medical Park Dr, Silver Spring, MD 20902-4053.
- What is John Ladas's phone number?
- The practice phone number listed in the NPPES registry for John Ladas is (301) 681-6600.
- Does John Ladas accept Medicare?
- John Ladas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Ladas's NPI active?
- Yes — John Ladas's NPI (1992743611) is active in the NPPES registry as of the last update on 2023-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.