Quick answers
- Does Jennifer A. Grosstick accept Medicare assignment?
- Yes. Medicare's clinician data says Jennifer A. Grosstick 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 Jennifer A. Grosstick see?
- In 2024, CMS data shows 517 Original Medicare patients and 1,189 services for Jennifer A. Grosstick. This counts Original Medicare only and measures volume, not quality.
- What is Jennifer A. Grosstick's NPI number?
- 1639120074. 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 Jennifer A. Grosstick, 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 | 517 |
|---|---|
| Services billed to Medicare | 1,189 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Test to assess middle ear function (92567)580 services
- Comprehensive hearing and speech recognition test (92557)529 services
- Test to assess balance during warm and cool irrigation in both ears (92537)19 services
- Evaluation and testing for balance with recording (92540)19 services
- Test for hearing various pitches using earphone and device placed against the bone (92553)13 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 cholesterol75%
- High blood pressure66%
- Arthritis49%
- Ischemic heart disease26%
- Osteoporosis24%
- Chronic kidney disease23%
Practice locations
Addresses where Jennifer A. Grosstick is enrolled with Medicare (CMS data updated October 2, 2026).
- 10510 N 92nd StScottsdale, AZ 85258
- 4530 E Shea Blvd, Suite 180Phoenix, AZ 85028 (602) 264‑4834
- 5750 W Thunderbird Rd, Suite A100Glendale, AZ 85306 (602) 938‑3205
Group practices
Medicare enrollment lists Jennifer A. Grosstick as a member of these groups (CMS data updated October 2, 2026).
- HonorHealth Ambulatory630 clinicians in the group
- Arizona Otolaryngology Consultants, PC22 clinicians in the group
Specialties
- Qualified Audiologistprimary
Other audiologists in Scottsdale
Clinicians with the same Medicare primary specialty in Scottsdale, AZ — not a recommendation.
Other clinicians in HonorHealth Ambulatory
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | AU |
|---|---|
| School | At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa |
| Graduation year | 2006 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639120074 |
| 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