NPPES file of Aug 9, 2026

Bay Infectious Disease in Orinda, CA

This location of Bay Infectious Disease bills under NPI 1215137633, an organization record issued on Jul 24, 2007 with the primary taxonomy Infectious Disease Physician. It is one of 2 NPIs registered under this name; each clinician who sees you there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1215137633
Legal name
Bay Infectious Disease
Entity
Type 2 · organization
Primary taxonomy
Infectious Disease Physician 207RI0200X
Practice location
1 COUNTRY CLUB PLZ, Orinda, CA 94563
Phone
925-254-3805
Enumerated
Jul 24, 2007
Record updated
Jan 7, 2013
Authorized official
Partner (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

2 clinicians CMS lists with Bay Infectious Disease in Orinda

  1. Yenjean Hwang, MDInfectious Disease Physician1194744557
  2. David Perlada, MDInfectious Disease Physician1245259845

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

All 2 Bay Infectious Disease NPIs

Every location registered under this name, in 2 cities.

See every location

Checking an organization

  1. Confirm the business with the California secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.