Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Harris Wasser, MD

Internal Medicine Physician in Simi Valley, CA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1609915768

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Harris Wasser

Credential MD

Sex Male

Practice address 2950 N Sycamore Dr #200, Simi Valley, CA, 93065

Phone (805) 522-4004

Fax (805) 583-3709

Enumeration date Feb 5, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A 37142 (CA) Primary

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
00A371421	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Harris Wasser?

The National Provider Identifier (NPI) for Harris Wasser is 1609915768, a Type 1 (individual) record in the CMS NPPES registry.

Where does Harris Wasser practice?

The practice location on file with NPPES is in Simi Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.