Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Jennifer A Dowalter MD A Professional Corporation

Internal Medicine Physician in Clearlake, CA · enumerated 2015 · authorized official Jennifer Dowalter, Sole Owner.

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

National Provider Identifier

1811362585

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Registry record

Entity type Organization (Type 2)

Legal business name Jennifer A Dowalter MD A Professional Corporation

Practice address 15630 18th Ave, Clearlake, CA, 95422

Phone (702) 453-3799

Fax (702) 453-5741

Enumeration date Dec 7, 2015

Last updated in NPPES Dec 7, 2015

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A96391 (CA) Primary

Authorized official

Name Jennifer Dowalter

Title Sole Owner

Phone (949) 292-4082

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

Who is the authorized official for Jennifer A Dowalter MD A Professional Corporation?

NPPES lists Jennifer Dowalter (Sole Owner) as the authorized official for this organization.

What is the NPI number for Jennifer A Dowalter MD A Professional Corporation?

The NPI for Jennifer A Dowalter MD A Professional Corporation is 1811362585, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-07.