Matthew Carnahan, MD
NPI 1093893760 · Ophthalmology Physician · Roseville, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Carnahan, MD is a Ophthalmology Physician provider in Roseville, CA (NPI 1093893760).
Provider details
- NPI number
- 1093893760
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A79822 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,131 | 355 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 325 | 107 |
| Timolol Maleate | 215 | 77 |
| Brimonidine Tartrate | 162 | 57 |
| Prednisolone Acetate | 158 | 77 |
| Cyclosporine | 106 | 29 |
| Moxifloxacin Hclbrand: Moxifloxacin | 105 | 56 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2021-12-01
Frequently asked questions
- What is Matthew Carnahan's NPI number?
- Matthew Carnahan's National Provider Identifier (NPI) is 1093893760, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Carnahan's specialty?
- Matthew Carnahan is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Carnahan located?
- Matthew Carnahan's practice location on file with NPPES is 1600 Eureka Rd, Roseville, CA 95661-3027.
- What is Matthew Carnahan's phone number?
- The practice phone number listed in the NPPES registry for Matthew Carnahan is (916) 784-4000.
- Does Matthew Carnahan accept Medicare?
- Matthew Carnahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Carnahan's NPI active?
- Yes — Matthew Carnahan's NPI (1093893760) is active in the NPPES registry as of the last update on 2021-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.