Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Allan Stewart Hill, MD
Specialist in Sebastopol, CA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578565438
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Registry record
Entity type Individual (Type 1)
Name Dr. Allan Stewart Hill
Credential MD
Sex Male
Practice address 555 Petaluma Ave, Suite C, Sebastopol, CA, 95472
Phone (707) 829-8426
Fax (707) 829-6675
Enumeration date Aug 11, 2005
Last updated in NPPES Dec 15, 2011
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 |
|---|---|---|---|
| 680454572 | Other | CA | TAX ID |
| 00G504130 | Medicaid | CA | - |
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 Allan Hill?
The National Provider Identifier (NPI) for Allan Hill is 1578565438, a Type 1 (individual) record in the CMS NPPES registry.
Where does Allan Hill practice?
The practice location on file with NPPES is in Sebastopol, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Roger Pitzen Family Medicine Physician · Sebastopol, CA NPI 1396742524 Kathleen Andersen Family Medicine Physician · Sebastopol, CA NPI 1679570899 Patricia Drier Family Medicine Physician · Sebastopol, CA NPI 1487651600 Craig Campbell Orthopaedic Surgery Physician · Sebastopol, CA NPI 1205820412 Michael Bollinger Orthopaedic Surgery Physician · Sebastopol, CA NPI 1417941642 Bruce Bragonier Orthopaedic Surgery Physician · Sebastopol, CA NPI 1134110026 Tonnie Moore Physician Assistant · Sebastopol, CA NPI 1619997269 Christine Ramsay Orthopaedic Surgery Physician · Sebastopol, CA NPI 1053485490
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-15.