Adam Maier, DO
Adam Maier, DO is an Infectious Disease Physician in Bethesda, MD, registered under NPI 1003378696. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Bethesda, based on OpenStreetMap data collected Sep 9, 2026. Parking is available about 863 ft away at Liberty Garage. The nearest transit stop is 0.26 mi away, served by Jones Bridge Road Opposite University Road.
Getting here and what is nearby
Parking 325 ft ~2 min
4630 South Palmer Road, Bethesda 20889
Hotel Navy Lodge Bethesda 807 ft ~4 min
8855 Stokes Road, Bethesda 20889
Parking Arrowhead Garage 858 ft ~4 min
8935 Brown Road, Bethesda 20889
Parking Liberty Garage 863 ft ~4 min
8965 Brown Road, Bethesda 20889
Gas station Mini Mart 0.24 mi ~5 min
Hotel Navy Gateway Inn & Suites 0.24 mi ~5 min
4520 Taylor Road, Bethesda 20889
Transit Jones Bridge Road & University Road Westbound 0.25 mi ~5 min
Convenience Mini Mart 0.25 mi ~6 min
Mo-Fr 07:00-19:00; Su 10:00-18:00; Sa 10:00-19:00
Transit 0.26 mi ~6 min
Transit Jones Bridge Road Opposite University Road 0.26 mi ~6 min
Restaurant Wendy's 0.27 mi ~6 min
8901 Wisconsin Avenue, Bethesda 20814
Mo-Fr 06:00-20:00; Sa-Su 08:00-19:00
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 |
|---|---|---|
| 2232 | NE | Infectious Disease Physician primary |
| 2232 | NE | Internal Medicine Physician |
This provider holds licence 2232 issued in NE. 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
- 8921411299
- Enrollment ID
- I20210105001709
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 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
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207RI0200X | Infectious Disease Physician Infectious Disease | 2232 | NE | primary |
| 207R00000X | Internal Medicine Physician | 2232 | NE | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — | |
| 171000000X | Military Health Care Provider | — | — |
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 | 1003378696 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 2, 2019 |
| Last updated | Apr 1, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | DO |
| Practice address |
8901 WISCONSIN AVE Bethesda, MD 20889 (301) 295-4000 Fax (301) 319-2172 |
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 | 3 | 7 | 8 | 6 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 7 | 7 | 6 | 9 |
Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6
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.