LIEN H LAM M.D.
NPI 1972820702
Emergency Medicine in Patchogue, NY
About Lien H Lam M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LIEN H LAM M.D. (NPI 1972820702) is an individual emergency medicine provider in Patchogue, New York, licensed in New York (60250762) and active in the NPI registry since May 2010. She is enrolled in Medicare PECOS, is affiliated with John T Mather Memorial Hospital Of Port Jefferson, and is a graduate of Other (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
Lien H Lam 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 Reassignment
Medicare enrollment records show Lien Lam reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mount Sinai, NY 11766
- Reassigned Medicare billing, New York enrollment
- Also billed through NPI 1467249334 (New York)
- 232 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 8
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
John T Mather Memorial Hospital Of Port Jefferson
Acute Care Hospitals · Port Jefferson, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11772 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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.
PATCHOGUE, NY 11772
PATCHOGUE, NY 11772
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 Lien Lam's NPI number?
The NPI number for Lien Lam is 1972820702. It was assigned to this individual provider in the NPPES registry on May 4, 2010.
Where is Lien Lam located?
Lien Lam practices at 101 Hospital Rd Emergency Department, Patchogue, NY 11772. The listed phone number is (631) 654-7100.
What is Lien Lam's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Lien Lam enrolled in Medicare?
Yes. Lien 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 Lien Lam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lien Lam reassigns Medicare benefits to John T. Mather Memorial Hospital (Mount Sinai, NY). 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 Lien Lam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Lien Lam affiliated with any hospitals?
According to CMS data, Lien Lam is affiliated with John T Mather Memorial Hospital Of Port Jefferson.
When was this NPI record last updated?
The NPPES record for Lien Lam was last updated on October 1, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Lien H Lam, M.D. · NPI 1972820702
Emergency Medicine physician in Patchogue, New York. Individual provider, active in the CMS NPPES registry since May 4, 2010.
## Identity
- **NPI:** 1972820702 (Entity type: Individual)
- **Enumerated:** May 4, 2010
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 60250762 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 HOSPITAL RD, EMERGENCY DEPARTMENT, Patchogue, NY 11772-4870
- **Phone:** (631) 654-7100
## 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:** John T. Mather Memorial Hospital (NPI 1568774453, Mount Sinai, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** October 1, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1972820702) · Data from the CMS NPPES public registry.