Hugh Alessi, MD
Hugh Alessi, MD is an Internal Medicine Physician in Phoenix, AZ, registered under NPI 1003757287. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Phoenix, based on OpenStreetMap data collected Oct 1, 2026. Parking is available about 0.29 mi away. The nearest transit stop is 719 ft away, served by 12th St & McDowell Rd. A pharmacy sits 0.21 mi from the entrance (The Compounding Center), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.40 mi away.
Getting here and what is nearby
Transit 12th St & Willetta St 0.00 mi ~1 min
Transit 12th St & Willetta St 302 ft ~2 min
Parking 291 ft ~2 min
Parking 333 ft ~2 min
Pharmacy Banner Family Pharmacy 497 ft ~2 min
1441 North 12th Street, Phoenix 85006
Pharmacy Banner Family Pharmacy 701 ft ~3 min
1111 East McDowell Road, Phoenix 85006
Transit 12th St & McDowell Rd 719 ft ~3 min
Pharmacy The Compounding Center 0.21 mi ~5 min
1110 East McDowell Road, Phoenix 85006
Coffee Caffeine & Dreams Coffee House 0.23 mi ~5 min
1302 East McDowell Road, Phoenix 85006
Restaurant Rainbow Donuts 0.28 mi ~6 min
1347 East McDowell Road, Phoenix 85006
Parking 0.29 mi ~6 min
909 East Brill Street, Phoenix 85006
Coffee Froth Coffee Roasters 0.40 mi ~9 min
1447 East McDowell Road, Phoenix 85006
Mo-Su 06:00-18:00
Restaurant Guanaquito Restaurant 0.40 mi ~9 min
1438 East McDowell Road, Phoenix 85006
Hotel HI Phoenix - The Metcalf House 0.42 mi ~9 min
Restaurant Whataburger 0.43 mi ~9 min
Convenience Circle K 0.49 mi ~10 min
Grocery Yenat Enjera Ethiopian Market & Grocery 0.49 mi ~10 min
1530 East McDowell Road, Phoenix 85006
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 |
|---|---|---|
| R82339 | AZ | Internal Medicine Physician primary |
This provider holds licence R82339 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
- Order And Referring Only - Internal Medicine
- PAC ID
- 5597238147
- Enrollment ID
- I20260624004418
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Internal Medicine. 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 Internal Medicine covers
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. NUCC Health Care Provider Taxonomy, code 207R00000X
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-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003757287 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 2, 2026 |
| Last updated | May 5, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MD |
| Practice address |
1300 N 12TH ST STE 508 Phoenix, AZ 85006 (602) 839-3927 |
| Mailing address |
1111 E MCDOWELL RD Phoenix, AZ 85006 |
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 | 7 | 5 | 7 | 2 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 5 | 5 | 5 | 2 | 7 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
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.