Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William F Spencer, MD
Urology Physician in Royal Oak, MI · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053393819
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Registry record
Entity type Individual (Type 1)
Name Dr. William F Spencer
Credential MD
Sex Male
Practice address 31157 Woodward Ave, Royal Oak, MI, 48073
Phone (248) 336-0123
Fax (248) 336-3190
Enumeration date Nov 17, 2005
Last updated in NPPES Nov 27, 2023
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 4973461 | Medicaid | MI | - |
| 131404 | Other | MI | PREFERRED CARE CHOICES |
| 3406313451 | Other | MI | BCBSM INDIVIDUAL NUMBER |
| WS055796 | Other | MI | BLUE SHEILD LICENSE NUMBE |
| 266621010 | Medicaid | MI | - |
| C7403 | Other | MI | MCARE |
| 4406806 | Other | MI | AETNA |
| 340003663 | Other | MI | RAILROAD MEDICARE |
| E62011 | Other | MI | HAP |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does William Spencer practice?
The practice location on file with NPPES is in Royal Oak, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Spencer?
The National Provider Identifier (NPI) for William Spencer is 1053393819, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Howard Korman General Practice Physician · Royal Oak, MI NPI 1467433599 Sugandh Shetty Urology Physician · Royal Oak, MI NPI 1871574913 Larry Sirls Urology Physician · Royal Oak, MI NPI 1841272085 Donald Moylan Urology Physician · Royal Oak, MI NPI 1447233879 Bradley Rosenberg Urology Physician · Royal Oak, MI NPI 1295718559 Kenneth Goldman Urology Physician · Royal Oak, MI NPI 1629052600 Ronald Rubenstein Urology Physician · Royal Oak, MI NPI 1124046610 Comprehensive Medical Center, Pllc Urology Physician · Royal Oak, MI NPI 1629117072
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-27.