Christopher Do
Christopher Do is a Physician Assistant in Madison, WI, registered under NPI 1003707134. 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 Madison, based on OpenStreetMap data collected Oct 18, 2026. Parking is available about 356 ft away. There is EV charging 0.31 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 973 ft away, served by S Park & Erin (SB). A pharmacy sits 0.39 mi from the entrance (UW Health Arboretum Clinic Outpatient Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.35 mi away.
Getting here and what is nearby
Parking 297 ft ~2 min
Parking 323 ft ~2 min
Parking 356 ft ~2 min
Transit Erin & S Mills (EB) 482 ft ~2 min
Transit Erin & S Mills (WB) 501 ft ~2 min
Transit S Park & Erin (SB) 973 ft ~4 min
Restaurant Dunkin' 0.20 mi ~5 min
801 South Park Street, Madison 53715
05:00-20:00
Restaurant Orient House 0.20 mi ~5 min
Mo,We-Fr 11:00-22:00; Sa,Su 10:00-22:00
Restaurant Ichiban Sichuan 0.21 mi ~5 min
Convenience Shell Select 0.25 mi ~5 min
Gas station Shell 0.25 mi ~6 min
Coffee Grace Coffee 0.31 mi ~7 min
1008 South Park Street, Madison 53715
EV charging 0.31 mi ~7 min
Pharmacy Walgreens 0.31 mi ~7 min
Coffee Zuzu Cafe 0.35 mi ~7 min
1336 Drake Street, Madison 53715
Tu-Fr 08:00-19:00; Sa 08:30-19:00; Su 08:30-17:00
Convenience BP Shop 0.37 mi ~8 min
Mo-Fr 10:00-21:00; Sa,Su 11:00-21:00
Gas station BP 0.37 mi ~8 min
Convenience Oriental Shop 0.39 mi ~8 min
Pharmacy UW Health Arboretum Clinic Outpatient Pharmacy 0.39 mi ~8 min
Grocery Midway Foods Asian 0.42 mi ~9 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 |
|---|---|---|
| 8749-23 | WI | Physician Assistant primary |
This provider holds licence 8749-23 issued in WI. 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 - Physician Assistant
- PAC ID
- 2163910787
- Enrollment ID
- I20251024000128
Medicare enrolment is recorded as approved under the provider type Practitioner - Physician Assistant. 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 Physician Assistant covers
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician. NUCC Health Care Provider Taxonomy, code 363A00000X
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 | 1003707134 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 15, 2025 |
| Last updated | Oct 14, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
700 S PARK ST Madison, WI 53715 (608) 251-6100 Fax (608) 260-2976 |
| Other identifiers |
1003707134
· Medicaid (WI) |
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 | 7 | 0 | 7 | 1 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 5 | 0 | 5 | 1 | 6 |
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.