1. Home
  2. Directory
  3. California
  4. Berkeley
  5. Internal Medicine
  6. NPI Profile

DR. JI YOUNG CHAE M.D. MPH
NPI 1912110537
Internal Medicine - Endocrinology, Diabetes & Metabolism in Berkeley, CA

Active since May 08, 2007PECOS EnrolledAccepts Medicare Assignment
3100 SAN PABLO AVE STE 310, BERKELEY, CA 94702(510) 985-5020 Get Directions Write a Review

NPPES record last updated: May 21, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 21, 2025, Feb 11, 2022 (2 updates tracked since 2022).

About Dr. Ji Young Chae M.d. Mph NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JI YOUNG CHAE M.D. MPH (NPI 1912110537) is an individual endocrinology, diabetes & metabolism provider in Berkeley, California, licensed in California (A96193) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Diego, and is a graduate of New York University School Of Medicine (2004).

NPPES Registry Identity

NPI1912110537
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameDR. JI YOUNG CHAECredential: M.D. MPH
Location Address3100 SAN PABLO AVE STE 310Berkeley, CA 94702-2498
Mailing Address1450 Treat Blvd Ste 300Walnut Creek, CA 94597-2168 · (925) 952-2828
Phone(510) 985-5020
Sole ProprietorYes
Medical School CMSNew York University School Of MedicineGraduated 2004
Enumeration DateMay 8, 2007
Last NPPES UpdateMay 21, 20252 updates tracked since enumeration
NPPES CertifiedMay 21, 2025
✔ NPI 1912110537 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · A96193
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedInternal MedicineTaxonomy 207R00000X · License A96193 (CA)
3100 SAN PABLO AVE STE 310, Berkeley, CA 94702
Open in Google Maps ↗

Secondary Practice Location 1

Location 1200 W Arbor Dr, UCSD Medical CenterSan Diego, CA 92103-9001 · Phone (619) 543-6222

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

Dr. Ji Young Chae M.d. Mph 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.

PECOS PAC ID7416044003
PECOS Enrollment IDI20071029000694
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Ji Chae reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Permanente Medical Group Inc
7.2 mi
Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1235226531 (510) 307-1555
John Muir Physician Network
14 mi
General Practice
1450 TREAT BLVD, SUITE 300
Walnut Creek, CA 94597
  • Reassigned Medicare billing, California enrollment
  • 650 clinicians in this Medicare group
NPI 1841407665 (925) 296-9872

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94702 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

ERICA LIPSCHULTZ
Nurse Practitioner (Family)
3100 SAN PABLO AVE STE 310
BERKELEY, CA 94702
Alameda County (510) 985-5100
MRS. BREANNA TETREAULT DO
Family Medicine
3100 SAN PABLO AVE STE 310
BERKELEY, CA 94702
Alameda County (510) 985-5000
KARA CUNNINGHAM MD
Family Medicine
3100 SAN PABLO AVE STE 310
BERKELEY, CA 94702
Alameda County (510) 985-5020
DR. JONATHAN SHAKED DO
Family Medicine
3100 SAN PABLO AVE STE 310
BERKELEY, CA 94702
Alameda County (510) 985-5020
TALIA SHANKS GRACER M.D.
Internal Medicine
3100 SAN PABLO AVE STE 310
BERKELEY, CA 94702
Alameda County (510) 985-5020
DR. FRANCINE ANN YEP MD
Family Medicine
3100 SAN PABLO AVE STE 310
BERKELEY, CA 94702
Alameda County (510) 985-5020

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 Ji Chae's NPI number?

The NPI number for Ji Chae is 1912110537. It was assigned to this individual provider in the NPPES registry on May 8, 2007.

Where is Ji Chae located?

Ji Chae practices at 3100 San Pablo Ave Ste 310, Berkeley, CA 94702. The listed phone number is (510) 985-5020.

What is Ji Chae's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Ji Chae enrolled in Medicare?

Yes. Ji Chae 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 Ji Chae's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ji Chae reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (Richmond, CA) and John Muir Physician Network (Walnut Creek, CA). 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 Ji Chae's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ji Chae was last updated on May 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.