Nicholas Boysen, M.D.
Nicholas Boysen, M.D. is an Internal Medicine Physician in Saint Paul, MN, registered under NPI 1003236373.
Getting there
Here is what surrounds this office in Saint Paul, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 802 ft away. There is EV charging 0.49 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 434 ft away, served by 12 St. If you arrive early, there is a coffee shop 0.30 mi away.
Getting here and what is nearby
Transit 14 St 0.00 mi ~1 min
Transit 14 St 236 ft ~1 min
Parking 236 ft ~1 min
Parking 14th Street Parking Ramp 368 ft ~2 min
135 East 14th Street
Transit 12 St 434 ft ~2 min
Parking 802 ft ~4 min
700 Robert Street North
Convenience BP Shop 0.22 mi ~5 min
542 Robert Street North
Gas station BP 0.22 mi ~5 min
Hotel Drury Plaza Hotel 0.23 mi ~5 min
EV charging ChargePoint 0.24 mi ~5 min
Restaurant Jimmy John's 0.24 mi ~5 min
523 Jackson Street, Saint Paul 55101
Su-We 11:00-22:00;Th-Sa 11:00-24:00;Fr-Su 00:00-02:00
Coffee Caribou Coffee 0.25 mi ~5 min
EV charging ChargePoint 0.25 mi ~5 min
Coffee Keys Cafe 0.29 mi ~6 min
Coffee Rathskeller Cafe 0.30 mi ~7 min
Restaurant Sawatdee St. Paul 0.32 mi ~7 min
468 Robert Street North, Saint Paul 55101
Mo-Th 11:00-22:00; Fr 11:00-23:00; Sa 11:00-23:00; Su 11:00-22:00
Convenience Peters Market 0.43 mi ~9 min
530 Saint Peter Street
Convenience Pat and Mike's Lobby Shoppe 0.44 mi ~9 min
Restaurant The Buttered Tin 0.44 mi ~9 min
EV charging 0.49 mi ~10 min
Hotel DoubleTree 0.53 mi ~11 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 |
|---|---|---|
| 61426 | MN | Internal Medicine Physician primary |
This provider holds licence 61426 issued in MN. 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
- 8628373511
- Enrollment ID
- I20170928000034
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 | 1003236373 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 24, 2014 |
| Last updated | Jul 21, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | M.D. |
| Practice address |
640 JACKSON ST Saint Paul, MN 55101 (651) 254-3456 Fax (651) 254-9673 |
| Mailing address |
8170 33RD AVE S MS 21110Q Bloomington, MN 55425 |
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 | 2 | 3 | 6 | 3 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 3 | 3 | 3 | 5 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.