JANICE YOUNG JOO MD
NPI 1639532187
Psychiatry & Neurology - Neurology in Arcadia, CA
About Janice Young Joo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JANICE YOUNG JOO MD (NPI 1639532187) is an individual neurology provider in Arcadia, California, licensed in California (A154893) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, is affiliated with St. Patrick Hospital, and maintains 6 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 6
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Janice Young Joo Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
14Medicare enrollment records show Janice Joo reassigns Medicare billing to 14 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
South Pasadena, CA 91030
- Reassigned Medicare billing, California enrollment
- 19 clinicians in this Medicare group
Fairfield, CA 94533
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Northbay Physicians Surgery Center, LLC
- 516 clinicians in this Medicare group
Colorado Springs, CO 80903
- Reassigned Medicare billing, Alabama, California, Colorado, Iowa, Illinois, Kentucky, Montana, Ohio, Oregon, South Carolina and Tennessee enrollments
- 6 clinicians in this Medicare group
Denver, CO 80204
- Reassigned Medicare billing, Colorado enrollment
- 2,259 clinicians in this Medicare group
Hamilton, MT 59840
- Reassigned Medicare billing, Montana enrollment
- 325 clinicians in this Medicare group
Spearfish, SD 57783
- Reassigned Medicare billing, South Dakota enrollment
- 831 clinicians in this Medicare group
De Witt, IA 52742
- Reassigned Medicare billing, Iowa enrollment
- 183 clinicians in this Medicare group
Dubuque, IA 52001
- Reassigned Medicare billing, Iowa enrollment
- 94 clinicians in this Medicare group
Memphis, TN 38105
- Reassigned Medicare billing, Tennessee enrollment
- Medicare enrollment name: St Jude Childrens Research Hospital Inc
- 367 clinicians in this Medicare group
Medford, WI 54451
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Aspirus Medical Group, Inc.
- 415 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 9
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St. Patrick Hospital
Acute Care Hospitals · Missoula, MTWakemed, Raleigh Campus
Acute Care Hospitals · Raleigh, NCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91006 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ARCADIA, CA 91006
ARCADIA, CA 91006
ARCADIA, CA 91006
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Janice Joo's NPI number?
The NPI number for Janice Joo is 1639532187. It was assigned to this individual provider in the NPPES registry on April 1, 2016.
Where is Janice Joo located?
Janice Joo practices at 1015 N 1st Ave, Arcadia, CA 91006. The listed phone number is (626) 598-3770.
What is Janice Joo's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Janice Joo enrolled in Medicare?
Yes. Janice Joo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Janice Joo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Janice Joo reassigns Medicare benefits to 14 organizations: West Coast Neurology, Inc (South Pasadena, CA), Northbay Healthcare Group (Fairfield, CA), Neuromonitoring Services Of America, Inc (Colorado Springs, CO), Denver Health And Hospital Authority (Denver, CO), Providence Health & Services Mt (Hamilton, MT) and 9 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Janice Joo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Janice Joo accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Montana and CareSource and 13 other insurers list Janice Joo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Janice Joo affiliated with any hospitals?
According to CMS data, Janice Joo is affiliated with St. Patrick Hospital and Wakemed, Raleigh Campus.
When was this NPI record last updated?
The NPPES record for Janice Joo was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Janice Young Joo, MD · NPI 1639532187
Neurology physician in Arcadia, California. Individual provider, active in the CMS NPPES registry since April 1, 2016.
## Identity
- **NPI:** 1639532187 (Entity type: Individual)
- **Enumerated:** April 1, 2016
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** A154893 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1015 N 1ST AVE, Arcadia, CA 91006-7401
- **Phone:** (626) 598-3770
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 14 organizations under Medicare reassignment (form CMS-855R): West Coast Neurology, Inc (NPI 1467897322, South Pasadena, CA); Northbay Healthcare Group (NPI 1821147786, Fairfield, CA); Neuromonitoring Services Of America, Inc (NPI 1134307531, Colorado Springs, CO); Denver Health And Hospital Authority (NPI 1477569838, Denver, CO); Providence Health & Services Mt (NPI 1821235599, Hamilton, MT); and 9 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** September 23, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1639532187) · Data from the CMS NPPES public registry.