Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jayanth K.R. Madderla, MD
Psychiatry Physician in Napa, CA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1699930099
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Registry record
Entity type Individual (Type 1)
Name Jayanth K.R. Madderla
Credential MD
Sex Male
Practice address 2100 Napa Vallejo Hwy, Napa, CA, 94558
Phone (707) 253-5000
Enumeration date Jul 24, 2008
Last updated in NPPES Nov 9, 2017
Taxonomy & licenses
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.
Frequently asked questions
Where does Jayanth Madderla practice?
The practice location on file with NPPES is in Napa, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jayanth Madderla?
The National Provider Identifier (NPI) for Jayanth Madderla is 1699930099, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Amardeep Sahota Internal Medicine Physician · Napa, CA NPI 1831192103 Claire Fry Psychiatric Pharmacist · Napa, CA NPI 1538151980 Lane Melgarejo Internal Medicine Physician · Napa, CA NPI 1588657308 Andrew Sawicki Podiatrist · Napa, CA NPI 1306834163 Ernest Hanes Psychiatry Physician · Napa, CA NPI 1659361574 Richard Frishman Psychiatry Physician · Napa, CA NPI 1174507347 David Morse Podiatrist · Napa, CA NPI 1871579748 Katherine Warburton Forensic Psychiatry Physician · Napa, CA NPI 1295709277
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-09.