Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Paul Seilhan
Specialist in Placerville, CA · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528319753
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Registry record
Entity type Individual (Type 1)
Name John Paul Seilhan
Sex Male
Practice address 2844 Coloma St, Placerville, CA, 95667
Phone (530) 642-1715
Enumeration date Sep 27, 2012
Last updated in NPPES Sep 27, 2012
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| CASI 12543 | Other | CA | SUBSTANCE USE DISORDER COUNSELOR |
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
Where does John Seilhan practice?
The practice location on file with NPPES is in Placerville, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Seilhan?
The National Provider Identifier (NPI) for John Seilhan is 1528319753, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Linda Marx Social Worker · Placerville, CA NPI 1366553612 Paul Nerz Addiction Medicine (Family Medicine) Physician · Placerville, CA NPI 1467549030 Progress House, Inc. Community/Behavioral Health Agency · Placerville, CA NPI 1215072293 Progress House, Inc. Substance Abuse Rehabilitation Facility · Placerville, CA NPI 1043542707 Nicole Haglund Specialist · Placerville, CA NPI 1144547209 Cari Mccracken Addiction (Substance Use Disorder) Counselor · Placerville, CA NPI 1710286653 Sonni Gil Addiction (Substance Use Disorder) Counselor · Placerville, CA NPI 1942590278 Abraham Munoz Specialist · Placerville, CA NPI 1174815393
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-27.