Ahmad Hamdan, M.D.
Ahmad Hamdan, M.D. is an Infectious Disease Physician in Bangor, ME, registered under NPI 1003470204.
Getting there
Here is what surrounds this office in Bangor, based on OpenStreetMap data collected Aug 30, 2026. Parking is available about 638 ft away. A pharmacy sits 718 ft from the entrance (Northern Light State Street Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 314 ft ~2 min
411 State Street, Bangor 04401
Parking 457 ft ~2 min
Parking 638 ft ~3 min
Pharmacy Northern Light State Street Pharmacy 718 ft ~3 min
364 State Street, 04401
Mo-Fr 08:00-20:00; Sa-Su 07:00-19:00
Restaurant Papa Gambino's 0.35 mi ~7 min
271 State Street, Bangor 04401
Gas station Apex 0.45 mi ~9 min
Restaurant Jimmie's Ice Cream and Grill 0.49 mi ~10 min
409 North Main Street, Brewer 04412
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 |
|---|---|---|
| 28086 | ME | Infectious Disease Physician primary |
This provider holds licence 28086 issued in ME. 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 - Infectious Disease
- PAC ID
- 9032449046
- Enrollment ID
- I20240816002929
Medicare enrolment is recorded as approved under the provider type Practitioner - Infectious Disease. 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 Infectious Disease covers
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine. NUCC Health Care Provider Taxonomy, code 207RI0200X
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 | 1003470204 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 24, 2019 |
| Last updated | Apr 8, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | M.D. |
| Practice address |
417 STATE ST Bangor, ME 04401 (207) 973-4377 Fax (207) 973-5810 |
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 | 4 | 7 | 0 | 2 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 7 | 0 | 2 | 0 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.