Andrew Ullmann, DO
Andrew Ullmann, DO is an Internal Medicine Physician in Bethesda, MD, registered under NPI 1003564790. 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 Bethesda, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 901 ft away at Liberty Garage. The nearest transit stop is 0.23 mi away, served by Jones Bridge Rd at Glenbrook Pky.
Getting here and what is nearby
Parking Arrowhead Garage 423 ft ~2 min
8935 Brown Road, Bethesda 20889
Convenience Mini Mart 627 ft ~3 min
Mo-Fr 07:00-19:00; Su 10:00-18:00; Sa 10:00-19:00
Gas station Mini Mart 635 ft ~3 min
Restaurant Wendy's 648 ft ~3 min
8901 Wisconsin Avenue, Bethesda 20814
Mo-Fr 06:00-20:00; Sa-Su 08:00-19:00
Parking Walter Reed National MIlitary Medical Center 678 ft ~3 min
4780 Enterprise Drive, Bethesda 20889
Transit Rockville Pike & Wood Road 897 ft ~4 min
Parking Liberty Garage 901 ft ~4 min
8965 Brown Road, Bethesda 20889
Transit Rockville Pike & South Drive 0.21 mi ~5 min
Transit Jones Bridge Rd at Glenbrook Pky 0.23 mi ~5 min
Hotel Navy Lodge Bethesda 0.26 mi ~6 min
8855 Stokes Road, Bethesda 20889
Hotel Navy Gateway Inn & Suites 0.43 mi ~9 min
4520 Taylor Road, Bethesda 20889
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 |
|---|---|---|
| 0102208161 | VA | Internal Medicine Physician primary |
This provider holds licence 0102208161 issued in VA. 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
- 6406206572
- Enrollment ID
- I20240102002403
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 | 1003564790 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 12, 2022 |
| Last updated | Jan 16, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | DO |
| Practice address |
8901 ROCKVILLE PIKE Bethesda, MD 20889 (908) 635-6978 |
| Mailing address |
20563 LOWFIELD DR Germantown, MD 20874 |
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 | 6 | 4 | 7 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 6 | 8 | 7 | 9 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
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.