Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Yvonne N Grassl, MD
Pediatrics Physician in Peoria, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1952372534
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Registry record
Entity type Individual (Type 1)
Name Yvonne N Grassl
Credential MD
Sex Female
Practice address 9059 W Lake Pleasant Pkwy Ste E-540, Peoria, AZ, 85382
Phone (623) 322-3380
Fax (623) 322-4399
Enumeration date Jan 31, 2006
Last updated in NPPES Jun 30, 2020
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 |
|---|---|---|---|
| 542185 | Medicaid | AZ | - |
| 4434635 | Medicaid | MI | - |
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 Yvonne Grassl?
The National Provider Identifier (NPI) for Yvonne Grassl is 1952372534, a Type 1 (individual) record in the CMS NPPES registry.
Where does Yvonne Grassl practice?
The practice location on file with NPPES is in Peoria, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-30.