SI-HOI LAM, MD, LLC
NPI 1255530325
Internal Medicine in Branford, CT
About Si-hoi Lam, Md, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SI-HOI LAM, MD, LLC (NPI 1255530325) is a healthcare organization registered as an internal medicine in Branford, Connecticut and active in the NPI registry since July 2007. The organization holds a CLIA Microscopy certificate valid through November 28, 2027 and lists Si-hoi Lam, Doctor, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Si-hoi Lam, Md, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Si-Hoi Lam, MD, LLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate for Provider-Performed Microscopy Procedures (PPMP) 07D0967895
Si-Hoi Lam MD LLC · Branford, CTFrequently 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 Si-Hoi Lam, MD, LLC's NPI number?
The NPI number for Si-Hoi Lam, MD, LLC is 1255530325. It was assigned to this organization in the NPPES registry on July 17, 2007.
Where is Si-Hoi Lam, MD, LLC located?
Si-Hoi Lam, MD, LLC is located at 173 Montowese St, Branford, CT 06405. The listed phone number is (203) 483-6285.
What is Si-Hoi Lam, MD, LLC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Si-Hoi Lam, MD, LLC enrolled in Medicare?
Yes. Si-Hoi Lam, MD, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Si-Hoi Lam, MD, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Si-Hoi Lam, MD, LLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Si-Hoi Lam, MD, LLC hold a CLIA laboratory certificate?
Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 07D0967895) is associated with this NPI, valid through November 28, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Si-Hoi Lam, MD, LLC was last updated on July 30, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Si-Hoi Lam, Md, Llc · NPI 1255530325
Internal Medicine organization in Branford, Connecticut. Organization record, active in the CMS NPPES registry since July 17, 2007.
## Identity
- **NPI:** 1255530325 (Entity type: Organization)
- **Enumerated:** July 17, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Si-Hoi Lam, DOCTOR
## Practice location
- **Address:** 173 MONTOWESE ST, Branford, CT 06405-3887
- **Phone:** (203) 483-6285 · **Fax:** (203) 483-6217
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 30, 2013
- **Other identifiers:** Medicaid 001248004 (CT); Medicare UPIN D80765 (CT); Medicare PIN C03331 (CT)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1255530325) · Data from the CMS NPPES public registry.