Leon Partamian, M.D.
NPI 1700808904 · Ophthalmology Physician · Ventura, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leon Partamian, M.D. is a Ophthalmology Physician provider in Ventura, CA (NPI 1700808904).
Provider details
- NPI number
- 1700808904
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- C40265 (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
19 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
1,969 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 Problem Focused Exam of Visual System92012 | 739 | $91 |
| Exam of Visual Field With Extended Testing92083 | 292 | $66 |
| Photography of the Retina92250 | 225 | $38 |
| Exam of the Internal Drainage System of Eye92020 | 199 | $28 |
| Established Patient Complete Exam of Visual System92014 | 178 | $129 |
| Ultrasound Scan of Cornea to Determine Thickness76514 | 142 | $11 |
| Imaging of Optic Nerve |
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 | 759 | 265 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 439 | 143 |
| Brimonidine Tartrate | 332 | 115 |
| Dorzolamide Hcl | 194 | 81 |
| Timolol Maleate | 180 | 67 |
| Prednisolone Acetate | 134 | 99 |
| Bimatoprostbrand: Lumigan | 103 | 45 |
| Brinzolamide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$435 across 10 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
- 2006-07-24
- Last updated
- 2022-12-08
- Certified
- 2022-12-08
Frequently asked questions
- What is Leon Partamian's NPI number?
- Leon Partamian's National Provider Identifier (NPI) is 1700808904, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leon Partamian's specialty?
- Leon Partamian is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Leon Partamian located?
- Leon Partamian's practice location on file with NPPES is 3085 Loma Vista Rd, Ventura, CA 93003-2999.
- What is Leon Partamian's phone number?
- The practice phone number listed in the NPPES registry for Leon Partamian is (805) 648-3085.
- Does Leon Partamian accept Medicare?
- Leon Partamian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leon Partamian's NPI active?
- Yes — Leon Partamian's NPI (1700808904) is active in the NPPES registry as of the last update on 2022-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.