Quick answers
- Does Ronald J. Hauptman accept Medicare assignment?
- Yes. Medicare's clinician data says Ronald J. Hauptman 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 Ronald J. Hauptman see?
- In 2024, CMS data shows 508 Original Medicare patients and 1,089 services for Ronald J. Hauptman. This counts Original Medicare only and measures volume, not quality.
- What is Ronald J. Hauptman's NPI number?
- 1699779074. 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 Ronald J. Hauptman, 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 | 508 |
|---|---|
| Services billed to Medicare | 1,089 |
| Different services or procedures | 35 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)372 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)155 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)105 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)75 services
- Biopsy of large bowel using a flexible endoscope (45380)68 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 pressure72%
- Arthritis50%
- Ischemic heart disease27%
- Diabetes26%
- Chronic kidney disease26%
Hospitals where Ronald J. Hauptman works
Medicare's Facility Affiliation Data lists Ronald J. Hauptman 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.
- Honor Health John C. Lincoln Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030014
- Yavapai Regional Medical CenterPrescott, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030012
Practice locations
Addresses where Ronald J. Hauptman is enrolled with Medicare (CMS data updated October 2, 2026).
- 3815 E Bell Rd, Suite 1250Phoenix, AZ 85032 (602) 493‑3030
- 9250 N 3rd St, Suite 4035Phoenix, AZ 85020 (602) 279‑3575
Group practices
Medicare enrollment lists Ronald J. Hauptman as a member of this group (CMS data updated October 2, 2026).
- Arizona Digestive Health PC136 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Other clinicians in Arizona Digestive Health PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1699779074 |
| 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