NPI Portal NPI Lookup & Verification

Dr. Lydia Dayang David, M.D.

Dr. Lydia Dayang David is a General Practice Physician provider (General Practice) practicing in Riverside, CA, registered in the NPPES registry with NPI 1720119605 since 2007. The credential MD stands for Doctor of Medicine.

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NPI 1720119605
Entity type Individual (Type 1)
Name Dr. Lydia Dayang David
Credential M.D.
Sex Female
Practice address 4000 ORANGE ST, 7TH FLOOR, Riverside, CA, 92501
Phone 9519554494
Enumeration date 2007-03-09
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208D00000X General Practice Physician Primary A38149 CA

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

Copy-ready billing details
Provider: Lydia David, M.D.
NPI: 1720119605
Taxonomy: 208D00000X (General Practice Physician)
Address: 4000 ORANGE ST, 7TH FLOOR, Riverside, CA, 92501

Other providers at this practice address

NPI Name Type Specialty Location
1033288428 Jeffrey Loh Individual General Practice Dentistry Riverside, CA
1104973494 Regina Kennedy Individual Addiction (Substance Use Disorder) Counselor Riverside, CA
1659418176 Eric Lemus Individual Adult Psychiatric/Mental Health Registered Nurse Riverside, CA
1548300973 Diana Phillips Individual Marriage & Family Therapist Riverside, CA
1881724144 Victor Laus Individual Internal Medicine Physician Riverside, CA
1912038027 Nerizza Andrada Individual Family Medicine Physician Riverside, CA
1205968617 Riverside County Department of Mental Health Organization Custodial Care Facility Riverside, CA
1881857944 Sylvia Hernandez Individual Addiction (Substance Use Disorder) Counselor Riverside, CA

Verify this record

Cross-check NPI 1720119605 against the authoritative CMS record: view Dr. Lydia Dayang David on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Lydia David?
Lydia David is registered in NPPES with the primary taxonomy of General Practice Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.