Quick answers
- Which hospitals does William K. Johnston work at?
- Medicare's official clinician data lists William K. Johnston at 5 hospitals: Ascension Providence Hospital, Southfield and Novi…, Beaumont Hospital - Farmington Hills, Huron Valley-Sinai Hospital, St Joe Mercy Hospital System Livonia and Trinity Health Livingston Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William K. Johnston see patients?
- Medicare's clinician data lists 9 practice locations, including Dearborn, MI, Brownstown Twp, MI and Macomb, MI. Call before your visit to confirm the address.
- What is William K. Johnston's specialty?
- Medicare lists Urology as the primary specialty.
- Does William K. Johnston accept Medicare assignment?
- Yes. Medicare's clinician data says William K. Johnston accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does William K. Johnston offer telehealth?
- Medicare's clinician data says William K. Johnston offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William K. Johnston?
- (313) 271-0066, as listed in official Medicare / NPI Registry data.
- What is William K. Johnston's NPI number?
- 1992711030. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William K. Johnston works
Medicare's Facility Affiliation Data lists William K. Johnston at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension Providence Hospital, Southfield and Novi…Southfield, MI · Acute Care Hospital · CCN 230019
- Beaumont Hospital - Farmington HillsFarmington Hills, MI · Acute Care Hospital · CCN 230151
- Huron Valley-Sinai HospitalCommerce Township, MI · Acute Care Hospital · CCN 230277
- St Joe Mercy Hospital System LivoniaLivonia, MI · Acute Care Hospital · CCN 230002
- Trinity Health Livingston HospitalBrighton, MI · Acute Care Hospital · CCN 230069
Practice locations
Addresses where William K. Johnston is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.
- 18100 Oakwood Blvd, Suite 315Dearborn, MI 48124 (313) 271‑0066
- 19117 Allen Rd, Suite ABrownstown Twp, MI 48183 (734) 676‑4040
- 19991 Hall Rd, Suite 201Macomb, MI 48044 (586) 228‑0150
- 20952 E 12 Mile Rd, Suite 200Saint Clair Shores, MI 48081 (586) 771‑4820
- 2300 Genoa Business Park Dr, Suite 120Brighton, MI 48114 (810) 900‑3220
Group practices
Medicare enrollment lists William K. Johnston as a member of this group (CMS data updated 2026-10-02).
- Alliance Physician Services of Michigan, P.C.82 clinicians in the group
Specialties
- Urologyprimary
Other urologists in Dearborn
Clinicians with the same Medicare primary specialty in Dearborn, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albany Medical College Of Union University |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1992711030 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians