IRONWOOD GASTROENTEROLOGY PLLC
IRONWOOD GASTROENTEROLOGY PLLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003031931, based in Tucson, AZ. It is classified under Gastroenterology Physician.
Getting there
Here is what surrounds this office in Tucson, based on OpenStreetMap data collected Aug 31, 2026. Parking is available about 284 ft away. The nearest transit stop is 901 ft away. A pharmacy sits 0.29 mi from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 257 ft ~1 min
Parking 272 ft ~2 min
Parking 284 ft ~2 min
Transit 566 ft ~3 min
Transit 622 ft ~3 min
Grocery Safeway 754 ft ~3 min
1551 West Saint Marys Road, Tucson 85745
Mo-Su 06:00-22:00
Convenience 7-Eleven 833 ft ~4 min
Gas station 7-Eleven 859 ft ~4 min
West Saint Mary's Road, Tucson 85745
Transit 901 ft ~4 min
Restaurant Wendy's 998 ft ~4 min
1602 West Saint Marys Road, Tucson 85745
06:30-22:00
Gas station Western Refining 0.22 mi ~5 min
1530 West Saint Mary's Road, Tucson 85745
Restaurant Pizza Hut 0.24 mi ~5 min
1502 #110 West Saint Mary's Road, Tucson 85745
Su-Th 10:30-22:30; Fr-Sa 10:30-00:00
Restaurant Chicken nuevo 0.25 mi ~6 min
Pharmacy Walgreens 0.29 mi ~6 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 27577 | AZ | Gastroenterology Physician primary |
This provider holds licence 27577 issued in AZ. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 1759488463
- Enrollment ID
- O20070515000062
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Gastroenterology covers
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs. NUCC Health Care Provider Taxonomy, code 207RG0100X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003031931 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Apr 16, 2007 |
| Last updated | Sep 16, 2024 |
| Status | Active |
| Practice address |
395 N SILVERBELL RD STE 265 Tucson, AZ 85745 (520) 724-0559 Fax (520) 220-5115 |
| Mailing address |
PO BOX 43100 Tucson, AZ 85733 |
| Other identifiers |
274981
· Medicaid (AZ) ========= · Other (AZ) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 0 | 3 | 1 | 9 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 3 | 2 | 9 | 6 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.