Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Nancy G Silvis, MD
Dermatology Physician in Tucson, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1740380427
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Registry record
Entity type Individual (Type 1)
Name Nancy G Silvis
Credential MD
Sex Female
Practice address 5155 E Farness Dr, Suite 111b, Tucson, AZ, 85712
Phone (520) 795-3800
Fax (520) 795-3806
Enumeration date Sep 23, 2006
Last updated in NPPES Oct 22, 2007
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 |
|---|---|---|---|
| 175366 | Medicaid | AZ | - |
| AZ0885160 | Other | AZ | BCBSAZ |
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
Is NPI 1740380427 active?
Yes, as of the latest NPPES snapshot, NPI 1740380427 is active (record last updated 2007-10-22).
How do I verify Nancy Silvis's NPI record?
Cross-check NPI 1740380427 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-22.