Ernest Fox, PA
NPI 1104809854 · Physician Assistant · Tucson, AZ
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ernest Fox, PA is a Physician Assistant provider in Tucson, AZ (NPI 1104809854).
Provider details
- NPI number
- 1104809854
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 448 | 135 |
| Semaglutidebrand: Ozempic | 383 | 89 |
| Metformin Hcl | 342 | 115 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 326 | 119 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 251 | 97 |
| Levothyroxine Sodium | 238 | 74 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$67 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 (1)
- 1773 W Saint Marys Rd Ste 202Tucson, AZ 85745-2654Phone: (520) 297-0404Fax: (520) 297-0436
Registry dates
- Enumerated
- 2005-11-28
- Last updated
- 2021-09-17
- Certified
- 2021-09-17
Frequently asked questions
- What is Ernest Fox's NPI number?
- Ernest Fox's National Provider Identifier (NPI) is 1104809854, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ernest Fox's specialty?
- Ernest Fox is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ernest Fox located?
- Ernest Fox's practice location on file with NPPES is 5910 N La Cholla Blvd, Tucson, AZ 85741-3535.
- What is Ernest Fox's phone number?
- The practice phone number listed in the NPPES registry for Ernest Fox is (520) 297-0404.
- Does Ernest Fox accept Medicare?
- Ernest Fox is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ernest Fox's NPI active?
- Yes — Ernest Fox's NPI (1104809854) is active in the NPPES registry as of the last update on 2021-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.