Ronald Cox, MD
NPI 1912103961 · Ophthalmology Physician · Tempe, AZ
Enrolled with Medicare as Order and Referring Only - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Cox, MD is a Ophthalmology Physician provider in Tempe, AZ (NPI 1912103961).
Provider details
- NPI number
- 1912103961
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 10791 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$25 across 1 record (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
- 2007-06-26
- Last updated
- 2016-07-17
Frequently asked questions
- What is Ronald Cox's NPI number?
- Ronald Cox's National Provider Identifier (NPI) is 1912103961, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Cox's specialty?
- Ronald Cox is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Cox located?
- Ronald Cox's practice location on file with NPPES is 2139 E Southern Avenue, Tempe, AZ 85282-7503.
- What is Ronald Cox's phone number?
- The practice phone number listed in the NPPES registry for Ronald Cox is (480) 730-8188.
- Does Ronald Cox accept Medicare?
- Ronald Cox is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Cox's NPI active?
- Yes — Ronald Cox's NPI (1912103961) is active in the NPPES registry as of the last update on 2016-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.