Mian Hammas, MD
Mian Hammas, MD is a Hospitalist Physician in Buffalo, NY, registered under NPI 1003557281. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Buffalo, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 0.26 mi away. The nearest transit stop is 0.20 mi away, served by Roswell Park Cancer Institute. A pharmacy sits 0.30 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 806 ft away.
Getting here and what is nearby
Coffee Corner Café 301 ft ~2 min
Mo-Fr 08:00-14:00
Transit Jacobs School of Medicine and Biomedical Sciences 447 ft ~2 min
Transit Clinical Translation Research Center 501 ft ~2 min
Coffee Tim Hortons 551 ft ~3 min
Parking 880 Ellicott Ramp 509 ft ~2 min
880 Ellicott St
Coffee Penny's Coffee Shop 806 ft ~4 min
916 Main Street
Mo-Fr 07:00-16:00; Sa 08:00-16:00; Su 08:00-14:00
Convenience Bill's Food Mart 946 ft ~4 min
32 Allen Street
Hotel Wyndham Garden Buffalo Downtown 965 ft ~4 min
125 High Street, Buffalo 14203
Restaurant Wendy's 948 ft ~4 min
Transit Roswell Park Cancer Institute 0.20 mi ~5 min
Parking 0.23 mi ~5 min
134 High Street, Buffalo 14203
Restaurant Giacobbi's Cucina Citta 0.23 mi ~5 min
Restaurant Cafe 59 0.23 mi ~5 min
62 Allen Street, Buffalo 14202
Mo-Th 08:00-23:00; Fr 08:00-24:00; Sa 10:00-24:00; Su 12:00-22:00
Parking 0.26 mi ~6 min
942 Michigan Avenue, Buffalo 14203
Convenience Allentown Trading Co. 0.29 mi ~6 min
553 Delaware Avenue, Buffalo 14202
Hotel Residence Inn 0.30 mi ~6 min
Pharmacy Walgreens 0.30 mi ~6 min
Mo-Su 07:00-23:00
Hotel Best Western 0.38 mi ~8 min
Convenience Elmwood Beverage Center 0.45 mi ~9 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 |
|---|---|---|
| 338198 | NY | Hospitalist Physician primary |
| 338198 | NY | Internal Medicine Physician |
This provider holds licence 338198 issued in NY. 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
- Practitioner - Hospitalist
- PAC ID
- 7719362920
- Enrollment ID
- I20250808000211
Medicare enrolment is recorded as approved under the provider type Practitioner - Hospitalist. 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 Hospitalist covers
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients. NUCC Health Care Provider Taxonomy, code 208M00000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 208M00000X | Hospitalist Physician | 338198 | NY | primary |
| 207R00000X | Internal Medicine Physician | 338198 | NY |
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 | 1003557281 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 5, 2022 |
| Last updated | Sep 8, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
100 HIGH ST Buffalo, NY 14203 (716) 859-5600 |
| Mailing address |
726 EXCHANGE ST STE 710 Buffalo, NY 14210 |
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 | 5 | 5 | 7 | 2 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 5 | 5 | 2 | 7 |
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.