Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephen Kaiser, M.D.

Psychiatry Physician in La Mesa, CA · enumerated 2013.

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

National Provider Identifier

1245677624

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Registry record

Entity type Individual (Type 1)

Name Stephen Kaiser

Credential M.D.

Sex Male

Practice address 5555 Grossmont Center Dr, La Mesa, CA, 91942

Phone (619) 356-3216

Enumeration date May 26, 2013

Last updated in NPPES Jul 9, 2017

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License A134560 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Stephen Kaiser?

The National Provider Identifier (NPI) for Stephen Kaiser is 1245677624, a Type 1 (individual) record in the CMS NPPES registry.

Where does Stephen Kaiser practice?

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

Other providers at this practice address

Browse all →

Patricia Cheney Nurse Practitioner · La Mesa, CA NPI 1699776963 Jack Springer Emergency Medicine Physician · La Mesa, CA NPI 1104828284 Serena Arts Adult Health Nurse Practitioner · La Mesa, CA NPI 1801881552 Cancer Center Oncology Medical Group, Inc-East County Specialist · La Mesa, CA NPI 1497737183 Grossmont Hospital Corporation General Acute Care Hospital · La Mesa, CA NPI 1528041811 Grossmont Hospital Corporation Psychiatric Hospital Unit · La Mesa, CA NPI 1568445419 Grossmont Hospital Corporation Rehabilitation Hospital Unit · La Mesa, CA NPI 1043293871 Grossmont Hospital Corporation Skilled Nursing Facility · La Mesa, CA NPI 1417930249

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-07-09.