Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Louis Holtzman, P.A.
Physician Assistant in Seattle, WA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1750430054
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Louis Holtzman
Credential P.A.
Sex Male
Practice address 200 15th Ave E, Seattle, WA, 98112
Phone (206) 326-3223
Enumeration date Jan 9, 2007
Last updated in NPPES Jul 25, 2007
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA10002017 (WA) 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 |
|---|---|---|---|
| 8357063 | Medicaid | WA | - |
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 Louis Holtzman?
The National Provider Identifier (NPI) for Louis Holtzman is 1750430054, a Type 1 (individual) record in the CMS NPPES registry.
Where does Louis Holtzman practice?
The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Melissa Casimir Physical Therapist · Seattle, WA NPI 1093811887 Paul Sherman Pediatrics Physician · Seattle, WA NPI 1831256718 Michael Carlon Anatomic Pathology Physician · Seattle, WA NPI 1285791541 Karl Goler Neurological Surgery Physician · Seattle, WA NPI 1871640466 John Faith Otolaryngology Physician · Seattle, WA NPI 1851448625 F. Hamilton Anesthesiology Physician · Seattle, WA NPI 1023166303 Ty Chen Anesthesiology Physician · Seattle, WA NPI 1396893798 Robert Gertler Anesthesiology Physician · Seattle, WA NPI 1508914961
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-25.