DR. SEAN LAM MD
NPI 1639673791
Anesthesiology in Sacramento, CA
About Dr. Sean Lam Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SEAN LAM MD (NPI 1639673791) is an individual anesthesiology provider in Sacramento, California, licensed in California (A164081) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, is affiliated with Straub Clinic And Hospital, and is a graduate of University Of Hawaii John A. Burns School Of Medicine (2018).
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. Sean Lam 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 Reassignment
Medicare enrollment records show Sean Lam reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Honolulu, HI 96813
- Reassigned Medicare billing, Hawaii enrollment
- 664 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Straub Clinic And Hospital
Acute Care Hospitals · Honolulu, HIKapiolani Medical Center For Women & Children
Childrens · Honolulu, HIMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Sean Lam's NPI number?
The NPI number for Sean Lam is 1639673791. It was assigned to this individual provider in the NPPES registry on March 22, 2018.
Where is Sean Lam located?
Sean Lam practices at 3315 Watt Ave, Sacramento, CA 95821. The listed phone number is (916) 734-5028.
What is Sean Lam's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Sean Lam enrolled in Medicare?
Yes. Sean Lam 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 organization bills Medicare for Sean Lam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sean Lam reassigns Medicare benefits to Straub Clinic & Hospital (Honolulu, HI). The 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 Sean Lam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Sean Lam affiliated with any hospitals?
According to CMS data, Sean Lam is affiliated with Straub Clinic And Hospital and Kapiolani Medical Center For Women & Children.
When was this NPI record last updated?
The NPPES record for Sean Lam was last updated on March 11, 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. Sean Lam, MD · NPI 1639673791
Anesthesiology physician in Sacramento, California. Individual provider, active in the CMS NPPES registry since March 22, 2018.
## Identity
- **NPI:** 1639673791 (Entity type: Individual)
- **Enumerated:** March 22, 2018
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A164081 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3315 WATT AVE, Sacramento, CA 95821-3600
- **Phone:** (916) 734-5028
## 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:** Straub Clinic & Hospital (NPI 1457306508, Honolulu, HI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Hawaii John A. Burns School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** March 11, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1639673791) · Data from the CMS NPPES public registry.