Quick answers
- Does Stephanie D. Martinez Hawthorne accept Medicare assignment?
- Yes. Medicare's clinician data says Stephanie D. Martinez Hawthorne 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 Stephanie D. Martinez Hawthorne see?
- In 2024, CMS data shows 344 Original Medicare patients and 751 services for Stephanie D. Martinez Hawthorne. This counts Original Medicare only and measures volume, not quality.
- What is Stephanie D. Martinez Hawthorne's NPI number?
- 1003872037. 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 Stephanie D. Martinez Hawthorne, 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 | 344 |
|---|---|
| Services billed to Medicare | 751 |
| Different services or procedures | 44 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)168 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)155 services
- Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)62 services
- Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)53 services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)38 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%
- Ischemic heart disease54%
- Chronic kidney disease53%
- Arthritis52%
- Diabetes46%
Hospitals where Stephanie D. Martinez Hawthorne works
Medicare's Facility Affiliation Data lists Stephanie D. Martinez Hawthorne at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Banner Thunderbird Medical CenterGlendale, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 030089
- Tucson Medical CenterTucson, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030006
Practice locations
Addresses where Stephanie D. Martinez Hawthorne is enrolled with Medicare (CMS data updated October 2, 2026).
- 5301 E Grant RdTucson, AZ 85712 (520) 324‑4230
- 7701 W Aspera Blvd, Stes 102 201 301Glendale, AZ 85308 (623) 248‑2100
Group practices
Medicare enrollment lists Stephanie D. Martinez Hawthorne as a member of these groups (CMS data updated October 2, 2026).
- Banner Physician Specialists Arizona LLC373 clinicians in the group
- TMC Medical Network281 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Tucson
Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.
Other clinicians in Banner Physician Specialists Arizona LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Colorado School Of Medicine, Denver |
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003872037 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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