ALLEN C LAM M.D.
NPI 1407177769
Otolaryngology in Boston, MA
About Allen C Lam M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLEN C LAM M.D. (NPI 1407177769) is an individual otolaryngology provider in Boston, Massachusetts, licensed in Massachusetts (262079) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with Massachusetts Eye And Ear Infirmary -, and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (2010).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Allen C 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 Reassignments
3Medicare enrollment records show Allen Lam reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 478 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 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 10
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.
Massachusetts Eye And Ear Infirmary -
Acute Care Hospitals · Boston, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02115 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.
BOSTON, MA 02115
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 Allen Lam's NPI number?
The NPI number for Allen Lam is 1407177769. It was assigned to this individual provider in the NPPES registry on June 21, 2010.
Where is Allen Lam located?
Allen Lam practices at 800 Huntington Ave Mass Eye And Ear, Longwood, Boston, MA 02115. The listed phone number is (617) 936-6160.
What is Allen Lam's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Allen Lam enrolled in Medicare?
Yes. Allen 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 organizations bill Medicare for Allen Lam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allen Lam reassigns Medicare benefits to 3 organizations: Massachusetts Eye And Ear Associates, Inc. (Boston, MA), The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization Inc (Boston, MA). 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 Allen Lam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Allen Lam accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Allen Lam as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Allen Lam affiliated with any hospitals?
According to CMS data, Allen Lam is affiliated with Massachusetts Eye And Ear Infirmary - and Newton-Wellesley Hospital.
When was this NPI record last updated?
The NPPES record for Allen Lam was last updated on February 17, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.