James Carolan, M.D.
NPI 1316940620 · Specialist · Vallejo, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Carolan, M.D. is a Specialist provider in Vallejo, CA (NPI 1316940620).
Provider details
- NPI number
- 1316940620
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A77481 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
21 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 454 | 201 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 360 | 126 |
| Prednisolone Acetate | 355 | 260 |
| Diclofenac Sodium | 276 | 229 |
| Polymyxin B Sulf/Trimethoprimbrand: Polymyxin B Sul-Trimethoprim | 237 | 211 |
| Brimonidine Tartrate | 187 | 79 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 75 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$209 across 6 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
- 2005-05-31
- Last updated
- 2021-12-13
Frequently asked questions
- What is James Carolan's NPI number?
- James Carolan's National Provider Identifier (NPI) is 1316940620, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Carolan's specialty?
- James Carolan is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is James Carolan located?
- James Carolan's practice location on file with NPPES is 975 Sereno Dr, Vallejo, CA 94589-2441.
- What is James Carolan's phone number?
- The practice phone number listed in the NPPES registry for James Carolan is (707) 651-1042.
- Does James Carolan accept Medicare?
- James Carolan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Carolan's NPI active?
- Yes — James Carolan's NPI (1316940620) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.