Reem Hasan, MD
Reem Hasan, MD is an Internal Medicine Physician in Portland, OR, registered under NPI 1003109935. 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 Portland, based on OpenStreetMap data collected Aug 30, 2026. Parking is available about 0.38 mi away. There is EV charging 0.39 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 212 ft away, served by Southwest Campus Drive & Loading Dock 5. If you arrive early, there is a coffee shop 405 ft away.
Getting here and what is nearby
Transit Southwest Sam Jackson Park & Oregon Health & Science University 187 ft ~1 min
Transit Southwest Sam Jackson Park & OHSU 204 ft ~1 min
Transit Southwest Campus Drive & Loading Dock 5 212 ft ~1 min
Parking Campus Drive Garage 254 ft ~1 min
Coffee Starbucks 405 ft ~2 min
Parking Emma Jones Garage 832 ft ~4 min
3350 Southwest Perimeter Court, Portland 97239
Restaurant Momiji Sushi 898 ft ~4 min
3460 Southwest United States Veterans Hospital Road, Portland 97239
Restaurant Thai Vendor 963 ft ~4 min
907 Southwest Gibbs Street, Portland 97239
Mo-Th 11:00-21:00; Fr 11:00-21:30; Sa 12:00-21:30; Su off
Convenience Plaid Pantry 1,007 ft ~4 min
Restaurant Thai Yummy 0.21 mi ~5 min
1010 Southwest Gibbs Street, Portland 97239
Convenience Shell 0.26 mi ~6 min
Gas station Shell 0.27 mi ~6 min
Hotel Inn at Marquam Hill 0.34 mi ~7 min
Parking 0.38 mi ~8 min
2715 Southwest 3rd Avenue, Portland 97201
EV charging 0.39 mi ~8 min
Convenience 7-Eleven 0.48 mi ~10 min
Hotel SureStay 0.50 mi ~10 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 |
|---|---|---|
| 171438 | OR | Internal Medicine Physician primary |
This provider holds licence 171438 issued in OR. 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 - Internal Medicine
- PAC ID
- 0446562417
- Enrollment ID
- I20150706000005
Medicare enrolment is recorded as approved under the provider type Practitioner - 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 | 1003109935 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 25, 2011 |
| Last updated | Jun 29, 2015 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | MD |
| Practice address |
3181 SW SAM JACKSON PARK RD PPV 350 Portland, OR 97239 (503) 494-8562 |
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 | 1 | 0 | 9 | 9 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 0 | 9 | 9 | 6 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.