Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Janice Young Joo, MD
Neurology Physician in Arcadia, CA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639532187
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Registry record
Entity type Individual (Type 1)
Name Janice Young Joo
Credential MD
Sex Female
Practice address 1015 N 1st Ave, Arcadia, CA, 91006
Phone (626) 598-3770
Enumeration date Apr 1, 2016
Last updated in NPPES Sep 23, 2025
Taxonomy & licenses
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License DR.0068885 (CO) Secondary
2084N0600X Clinical Neurophysiology Physician Allopathic & Osteopathic Physicians · License MED-PHYS-LIC-113026 (MT) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 2024-03678 (NC) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 1639532187 (IL) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MED-PHYS-LIC-113026 (MT) Secondary
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
Is NPI 1639532187 active?
Yes, as of the latest NPPES snapshot, NPI 1639532187 is active (record last updated 2025-09-23).
How do I verify Janice Joo's NPI record?
Cross-check NPI 1639532187 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Gail Hartley Nurse Practitioner · Arcadia, CA NPI 1811903404 Shuichi Suzuki, M.D., Inc. Diagnostic Neuroimaging (Psychiatry & Neurology) Physician · Arcadia, CA NPI 1740406628 Arthur An M D Inc Specialist · Arcadia, CA NPI 1558572610 Jyes Querubin Neurology with Special Qualifications in Child Neurology Physician · Arcadia, CA NPI 1154688604 Lise Phan Neurology Physician · Arcadia, CA NPI 1487031100 Aleracare Medical Group of California, A Medical Corporation Multi-Specialty Clinic/Center · Arcadia, CA NPI 1922717388
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-23.