Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Carr Ross, APNP
Nurse Practitioner in Madison, WI · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821071150
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Registry record
Entity type Individual (Type 1)
Name Mary Carr Ross
Credential APNP
Sex Female
Practice address 1821 S Stoughton Rd, Madison, WI, 53716
Phone (608) 260-6000
Fax (608) 260-6835
Enumeration date Nov 21, 2005
Last updated in NPPES Dec 17, 2020
Taxonomy & licenses
363LX0001X Obstetrics & Gynecology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 24-033 (WI) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 24 (WI) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1821071150 | Medicaid | WI | - |
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 Mary Ross?
The National Provider Identifier (NPI) for Mary Ross is 1821071150, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Ross practice?
The practice location on file with NPPES is in Madison, WI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Brian Mcknight Clinical Social Worker · Madison, WI NPI 1275537813 Kristopher Glanville Optometrist · Madison, WI NPI 1104825017 Robert Cambray Family Medicine Physician · Madison, WI NPI 1194712786 Rebecca Thousand Obstetrics & Gynecology Physician · Madison, WI NPI 1053309724 Matthew Pogodzinski Otolaryngology Physician · Madison, WI NPI 1598755449 Kevin Kubly Physician Assistant · Madison, WI NPI 1477523884 Linda Pfister Nurse Practitioner · Madison, WI NPI 1033187398 Kimberly Day Family Nurse Practitioner · Madison, WI NPI 1437119849
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-17.