Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark A Wainstein, MD
Urology Physician in Truckee, CA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225033996
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Registry record
Entity type Individual (Type 1)
Name Mark A Wainstein
Credential MD
Sex Male
Practice address 10121 Pine Ave, Truckee, CA, 96161
Phone (530) 550-6770
Enumeration date Jun 17, 2005
Last updated in NPPES Jan 30, 2026
Taxonomy & licenses
208800000X Urology Physician Allopathic & Osteopathic Physicians · License DR.0069372 (CO) Secondary
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 |
|---|---|---|---|
| 2033561 | Medicaid | OH | - |
| 301323 | Other | CA | MEDICARE |
| 340013152 | Other | OH | RAILROAD MEDICARE |
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
What is the NPI number for Mark Wainstein?
The National Provider Identifier (NPI) for Mark Wainstein is 1225033996, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Wainstein practice?
The practice location on file with NPPES is in Truckee, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-30.