DR. KRISTEN HYONJU LEE MD
NPI 1134327398
Internal Medicine - Rheumatology in Sacramento, CA
About Dr. Kristen Hyonju Lee Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KRISTEN HYONJU LEE MD (NPI 1134327398) is an individual rheumatology provider in Sacramento, California, licensed in California (176188) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS and is a graduate of State University Of New York At Stony Brook, School Of Medicine (2007).
NPPES Registry Identity
Specialties & Licenses
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. Kristen Hyonju Lee 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
2Medicare enrollment records show Kristen Lee reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sacramento, CA 95817
- Reassigned Medicare billing, California enrollment
- 2,570 clinicians in this Medicare group
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 7,712 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95817 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
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 Kristen Lee's NPI number?
The NPI number for Kristen Lee is 1134327398. It was assigned to this individual provider in the NPPES registry on July 10, 2007.
Where is Kristen Lee located?
Kristen Lee practices at 4860 Y St, Sacramento, CA 95817. The listed phone number is (917) 432-7899.
What is Kristen Lee's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Kristen Lee enrolled in Medicare?
Yes. Kristen Lee 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 Kristen Lee's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kristen Lee reassigns Medicare benefits to 2 organizations: Regents Of The Univ Of Ca (Sacramento, CA) and New York University (Boynton Beach, FL). 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 Kristen Lee'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 Kristen Lee was last updated on March 8, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.
# Dr. Kristen Hyonju Lee, MD · NPI 1134327398
Rheumatology physician in Sacramento, California. Individual provider, active in the CMS NPPES registry since July 10, 2007.
## Identity
- **NPI:** 1134327398 (Entity type: Individual)
- **Enumerated:** July 10, 2007
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 176188 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4860 Y ST, Sacramento, CA 95817-2309
- **Phone:** (917) 432-7899
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Regents Of The Univ Of Ca (NPI 1013906973, Sacramento, CA); New York University (NPI 1285826438, Boynton Beach, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York At Stony Brook, School Of Medicine, class of 2007
## Record status
- **NPPES last updated:** March 8, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1134327398) · Data from the CMS NPPES public registry.