DR. HUEYLAN CHERN M.D.
NPI 1942461645
Colon & Rectal Surgery in San Francisco, CA
About Dr. Hueylan Chern M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HUEYLAN CHERN M.D. (NPI 1942461645) is an individual colon & rectal surgery provider in San Francisco, California, licensed in California (A109836) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS and is a graduate of Rutgers New Jersey Medical School (2002).
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. Hueylan Chern M.d. 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 Hueylan Chern reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
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
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 761 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 87 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 13
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
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 Hueylan Chern's NPI number?
The NPI number for Hueylan Chern is 1942461645. It was assigned to this individual provider in the NPPES registry on June 24, 2008.
Where is Hueylan Chern located?
Hueylan Chern practices at 2330 Post St Suite 260, San Francisco, CA 94115. The listed phone number is (415) 885-3625.
What is Hueylan Chern's specialty?
The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.
Is Hueylan Chern enrolled in Medicare?
Yes. Hueylan Chern 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 Hueylan Chern's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hueylan Chern reassigns Medicare benefits to 4 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA), Ucsf Dept Of Surgery (San Francisco, CA) and University Of California Sfgh Medical Group (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 Hueylan Chern'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 Hueylan Chern was last updated on December 10, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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. Hueylan Chern, M.D. · NPI 1942461645
Colon & Rectal Surgery physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since June 24, 2008.
## Identity
- **NPI:** 1942461645 (Entity type: Individual)
- **Enumerated:** June 24, 2008
- **Primary specialty:** Colon & Rectal Surgery · taxonomy 208C00000X
- **State license:** A109836 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2330 POST ST, SUITE 260, San Francisco, CA 94115-3465
- **Phone:** (415) 885-3625
## 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): University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Ucsf Dept Of Surgery (NPI 1477627537, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1033913959, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers New Jersey Medical School, class of 2002
## Record status
- **NPPES last updated:** December 10, 2009
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Source: [NPI Profile](https://npiprofile.com/npi/1942461645) · Data from the CMS NPPES public registry.