DR. HOWARD JINSOO LEE JR. MD
NPI 1265992689
Internal Medicine - Hematology & Oncology in Sunnyvale, CA
About Dr. Howard Jinsoo Lee Jr. Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HOWARD JINSOO LEE JR. MD (NPI 1265992689) is an individual hematology & oncology provider in Sunnyvale, California, licensed in California (A177574) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and is a graduate of Duke University School Of Medicine (2019).
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. Howard Jinsoo Lee Jr. 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
4Medicare enrollment records show Howard Lee reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mountain View, CA 94040
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1568851327 (California), NPI 1013950807 (California), NPI 1104067115 (California), NPI 1033817168 (California), NPI 1306241534 (California)
- 373 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 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 94086 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.
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 Howard Lee's NPI number?
The NPI number for Howard Lee is 1265992689. It was assigned to this individual provider in the NPPES registry on March 21, 2019.
Where is Howard Lee located?
Howard Lee practices at 301 Old San Francisco Rd, Sunnyvale, CA 94086. The listed phone number is (408) 730-2800.
What is Howard Lee's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Howard Lee enrolled in Medicare?
Yes. Howard 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 Howard Lee's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Howard Lee reassigns Medicare benefits to 4 organizations: Sutter Bay Medical Foundation (Mountain View, CA), Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, 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 Howard 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 Howard Lee was last updated on March 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Howard Jinsoo Lee Jr., MD · NPI 1265992689
Hematology & Oncology physician in Sunnyvale, California. Individual provider, active in the CMS NPPES registry since March 21, 2019.
## Identity
- **NPI:** 1265992689 (Entity type: Individual)
- **Enumerated:** March 21, 2019
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** A177574 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 301 OLD SAN FRANCISCO RD, Sunnyvale, CA 94086-6386
- **Phone:** (408) 730-2800
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Sutter Bay Medical Foundation (NPI 1982845186, Mountain View, CA); Regents Of The University Of California (NPI 1376613943, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Duke University School Of Medicine, class of 2019
## Record status
- **NPPES last updated:** March 17, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1265992689) · Data from the CMS NPPES public registry.