Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joseph K Grosso, PA
Physician Assistant in Butler, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1184695512
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Registry record
Entity type Individual (Type 1)
Name Joseph K Grosso
Credential PA
Sex Male
Practice address 911 East Brady St, Butler, PA, 16001
Phone (724) 285-0823
Fax (724) 282-7807
Enumeration date Feb 1, 2006
Last updated in NPPES Mar 24, 2009
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License MA000895L (PA) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program.
About the PA credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 882105 | Other | PA | HIGHMARK/KEYSTONE |
| 209518 | Other | PA | UPMC HEALTH PLANS |
| 060052732 | Other | PA | MEDICARE RAILROAD |
| 251248890 | Other | PA | INTERGROUP |
| 60052732 | Other | PA | UNITED HEALTHCARE |
| R06023 | Other | PA | HEALTH AMERICA/ASSURANCE |
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 specialty is Joseph Grosso?
Joseph Grosso is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-24.