Quick answers
- Does Grant Fankhauser accept Medicare assignment?
- Yes. Medicare's clinician data says Grant Fankhauser accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Grant Fankhauser see?
- In 2024, CMS data shows 208 Original Medicare patients and 578 services for Grant Fankhauser. This counts Original Medicare only and measures volume, not quality.
- What is Grant Fankhauser's NPI number?
- 1831121532. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Grant Fankhauser, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 208 |
|---|---|
| Services billed to Medicare | 578 |
| Different services or procedures | 40 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes (99153)82 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)69 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)63 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)49 services
- Ultrasonic guidance for blood vessel access (76937)41 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Diabetes57%
- Arthritis51%
- Chronic kidney disease45%
- Ischemic heart disease38%
Practice locations
Addresses where Grant Fankhauser is enrolled with Medicare (CMS data updated October 2, 2026).
- 1010 E McDowell Rd, Suite 103Phoenix, AZ 85006 (800) 991‑6117
- 222 S Summit Ave, Suite 3Prescott, AZ 86303 (928) 250‑7700
- 6118 E Brown Rd, Bldg 5Mesa, AZ 85205 (800) 991‑6117
Group practices
Medicare enrollment lists Grant Fankhauser as a member of these groups (CMS data updated October 2, 2026).
- Arizona Uvc Medical PLLC13 clinicians in the group
- Sonoran Vein and Endovascular LLC6 clinicians in the group
Specialties
- General Surgeryprimary
- Vascular Surgeryalso
Other general surgeons in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Other clinicians in Arizona Uvc Medical PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Kansas School Of Med (kc/wich/sal) |
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831121532 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians