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Dr. Peter D Nierman, M.D.

Child & Adolescent Psychiatry Physician in Aliso Viejo, CA · enumerated 2006 · practices at West Coast Psychiatry MD P.C..

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

National Provider Identifier

1801994769

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Registry record

Entity type Individual (Type 1)
Name Dr. Peter D Nierman
Credential M.D.
Sex Male
Practice address 200 Freedom Ln, Aliso Viejo, CA, 92656
Phone (949) 900-8600
Fax (949) 221-3590
Enumeration date Sep 21, 2006
Last updated in NPPES Mar 21, 2024

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License G168746 (CA) Secondary
2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License G168746 (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.

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Frequently asked questions

Is NPI 1801994769 active?
Yes, as of the latest NPPES snapshot, NPI 1801994769 is active (record last updated 2024-03-21).
How do I verify Peter Nierman's NPI record?
Cross-check NPI 1801994769 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-21.