Quick answers
- Does Gonzalo M. Celis accept Medicare assignment?
- Yes. Medicare's clinician data says Gonzalo M. Celis 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 Gonzalo M. Celis see?
- In 2024, CMS data shows 152 Original Medicare patients and 698 services for Gonzalo M. Celis. This counts Original Medicare only and measures volume, not quality.
- What is Gonzalo M. Celis's NPI number?
- 1366425886. 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 Gonzalo M. Celis, 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 | 152 |
|---|---|
| Services billed to Medicare | 698 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)202 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)149 services
- Insertion of needle into vein for collection of blood sample (36415)148 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)96 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)19 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 cholesterol67%
- Diabetes35%
- Arthritis27%
- Chronic kidney disease26%
- Ischemic heart disease23%
Hospitals where Gonzalo M. Celis works
Medicare's Facility Affiliation Data lists Gonzalo M. Celis 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.
- Tucson Medical CenterTucson, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030006
Practice locations
Addresses where Gonzalo M. Celis is enrolled with Medicare (CMS data updated October 2, 2026).
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Tucson
Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1979 (47 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366425886 |
| 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