Sherrill Fox, M.D.
NPI 1124034566 · Family Medicine Physician · Casper, WY
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sherrill Fox, M.D. is a Family Medicine Physician provider in Casper, WY (NPI 1124034566).
Provider details
- NPI number
- 1124034566
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 5958A (WY)
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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
985 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 Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 201 | $85 |
| Hemoglobin A1c Level83036 | 184 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 158 | $122 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 150 | $119 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 62 | $14 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial VisitG0438 | 55 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 114 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 420 | 103 |
| Losartan Potassium | 282 | 77 |
| Atorvastatin Calcium | 250 | 69 |
| Pantoprazole Sodium | 206 | 60 |
| Gabapentin | 197 | 48 |
| Amlodipine Besylate | 167 | 44 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$615 across 23 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
- 2006-07-31
- Last updated
- 2020-08-11
- Certified
- 2020-08-11
Frequently asked questions
- What is Sherrill Fox's NPI number?
- Sherrill Fox's National Provider Identifier (NPI) is 1124034566, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sherrill Fox's specialty?
- Sherrill Fox is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sherrill Fox located?
- Sherrill Fox's practice location on file with NPPES is 6500 E 2nd St, Casper, WY 82609-4338.
- What is Sherrill Fox's phone number?
- The practice phone number listed in the NPPES registry for Sherrill Fox is (307) 577-5100.
- Does Sherrill Fox accept Medicare?
- Sherrill Fox is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sherrill Fox's NPI active?
- Yes — Sherrill Fox's NPI (1124034566) is active in the NPPES registry as of the last update on 2020-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.