Devin Hymas, M.D.
NPI 1538383864 · Ophthalmology Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Devin Hymas, M.D. is a Ophthalmology Physician provider in Thousand Oaks, CA (NPI 1538383864).
Provider details
- NPI number
- 1538383864
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A74605 (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
3,523 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 Complete Exam of Visual System92014 | 1,405 | $129 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 419 | $26 |
| Established Patient Problem Focused Exam of Visual System92012 | 358 | $92 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 256 | $533 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 252 | $57 |
| New Patient Complete Exam of Visual System92004 | 227 | $152 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Moxifloxacin Hclbrand: Moxifloxacin | 261 | 182 |
| Prednisolone Acetate | 149 | 111 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 131 | 115 |
| Latanoprost | 122 | 39 |
| Bromfenac Sodium | 90 | 53 |
| Difluprednate | 81 | 58 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 46 | 43 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$533 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
- 2007-04-11
- Last updated
- 2020-12-16
- Certified
- 2020-12-16
Frequently asked questions
- What is Devin Hymas's NPI number?
- Devin Hymas's National Provider Identifier (NPI) is 1538383864, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Devin Hymas's specialty?
- Devin Hymas is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Devin Hymas located?
- Devin Hymas's practice location on file with NPPES is 2230 Lynn Rd, Thousand Oaks, CA 91360-1901.
- What is Devin Hymas's phone number?
- The practice phone number listed in the NPPES registry for Devin Hymas is (805) 495-0458.
- Does Devin Hymas accept Medicare?
- Devin Hymas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Devin Hymas's NPI active?
- Yes — Devin Hymas's NPI (1538383864) is active in the NPPES registry as of the last update on 2020-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.