Dr. Don B. Singer, MD
Dr. Don B. Singer is a Clinical Pathology/Laboratory Medicine Physician provider (Pathology) practicing in Madison, WI, registered in the NPPES registry with NPI 1992828073 since 2007. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1992828073 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Don B. Singer |
| Credential | MD |
| Sex | Male |
| Practice address | 533 W MAIN ST, Madison, WI, 53703 |
| Phone | 6082510240 |
| Enumeration date | 2007-04-06 |
| Last updated in NPPES | 2020-05-01 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207ZP0213X | Pediatric Pathology Physician | Secondary | C8440 | TX |
| 207ZP0105X | Clinical Pathology/Laboratory Medicine Physician | Primary | 55409 | WI |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Don Singer, MD NPI: 1992828073 Taxonomy: 207ZP0105X (Clinical Pathology/Laboratory Medicine Physician) Address: 533 W MAIN ST, Madison, WI, 53703
Verify this record
Cross-check NPI 1992828073 against the authoritative CMS record: view Dr. Don B. Singer on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-05-01.