Christopher Boyd, MD
Christopher Boyd, MD is a Cardiovascular Disease Physician in Milwaukee, WI, registered under NPI 1003201856.
Getting there
Here is what surrounds this office in Milwaukee, based on OpenStreetMap data collected Aug 28, 2026. Parking is available about 963 ft away at Specialty Clinics Parking - Orange. The nearest transit stop is 488 ft away, served by Froedtert Hospital.
Getting here and what is nearby
Transit Froedtert Hospital 434 ft ~2 min
Transit 92nd Street & Connell Court 485 ft ~2 min
Transit Froedtert Hospital 488 ft ~2 min
Parking Parking 1 462 ft ~2 min
850 North 92nd Street, Wauwatosa 53226
Parking 903 ft ~4 min
9229 West Connell Court, Wauwatosa 53226
Parking Specialty Clinics Parking - Orange 963 ft ~4 min
8700 Doyne Avenue, Wauwatosa 53226
Convenience Speedway 0.39 mi ~8 min
Gas station Speedway 0.40 mi ~8 min
Restaurant La Fuente 0.42 mi ~9 min
Hotel Residence Inn Milwaukee West 0.52 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 |
|---|---|---|
| 66134-20 | WI | Cardiovascular Disease Physician primary |
This provider holds licence 66134-20 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 - Cardiovascular Disease (cardiology)
- PAC ID
- 5193001527
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Wisconsin | I20210618001988 | Practitioner - Cardiovascular Disease (cardiology) |
| Colorado | I20230816003910 | Practitioner - Cardiovascular Disease (cardiology) |
Medicare enrolment is recorded as approved under the provider type Practitioner - Cardiovascular Disease (cardiology). There are 2 separate enrolment records across 2 states (WI, CO). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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 Cardiovascular Disease covers
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms. NUCC Health Care Provider Taxonomy, code 207RC0000X
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 | 1003201856 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 30, 2015 |
| Last updated | Mar 6, 2023 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
9200 W WISCONSIN AVE Milwaukee, WI 53226 (414) 805-6000 Fax (414) 805-6280 |
| Other identifiers |
1003201856
· 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 | 2 | 0 | 1 | 8 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 0 | 2 | 8 | 1 |
Sum = 44 · next multiple of 10 = 50 · 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.