Martha Ryan, MD
NPI 1427443738 · Ophthalmology Physician · Salinas, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martha Ryan, MD is a Ophthalmology Physician provider in Salinas, CA (NPI 1427443738).
Provider details
- NPI number
- 1427443738
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A161841 (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
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
3,306 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 | 637 | $137 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 539 | $135 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 351 | $25 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 329 | $569 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 235 | $96 |
| Exam of Visual Field With Extended Testing92083 | 230 |
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 |
|---|---|---|
| Prednisolone Acetate | 399 | 291 |
| Bromfenac Sodium | 216 | 160 |
| Erythromycin Basebrand: Erythromycin | 215 | 176 |
| Latanoprost | 181 | 72 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 120 | 107 |
| Cyclosporinebrand: Restasis | 50 | 21 |
| Tobramycin/Dexamethasonebrand: Tobradex | 44 | 38 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$435 across 4 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)
- 966 Cass StMonterey, CA 93940-4539Phone: (831) 373-7733Fax: (831) 771-3966
- 2 Upper Ragsdale Dr Ste B130Monterey, CA 93940-7842Phone: (831) 647-3900Fax: (831) 771-3966
Registry dates
- Enumerated
- 2015-04-02
- Last updated
- 2023-05-17
- Certified
- 2023-05-17
Frequently asked questions
- What is Martha Ryan's NPI number?
- Martha Ryan's National Provider Identifier (NPI) is 1427443738, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Ryan's specialty?
- Martha Ryan is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Martha Ryan located?
- Martha Ryan's practice location on file with NPPES is 622 Abbott St, Salinas, CA 93901-4315.
- What is Martha Ryan's phone number?
- The practice phone number listed in the NPPES registry for Martha Ryan is (831) 771-3900.
- Does Martha Ryan accept Medicare?
- Martha Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martha Ryan's NPI active?
- Yes — Martha Ryan's NPI (1427443738) is active in the NPPES registry as of the last update on 2023-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.