MARISA LAM
NPI 1477927093
Nurse Practitioner - Adult Health in New York, NY
About Marisa Lam NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARISA LAM (NPI 1477927093) is an individual adult health provider in New York, New York, licensed in New York (307393) and active in the NPI registry since November 2015. She is enrolled in Medicare PECOS and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses 2
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
Marisa Lam 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 Marisa Lam reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10002
- Reassigned Medicare billing, New York enrollment
- 1,615 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 4
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 10002 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.
NEW YORK, NY 10002
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 Marisa Lam's NPI number?
The NPI number for Marisa Lam is 1477927093. It was assigned to this individual provider in the NPPES registry on November 19, 2015.
Where is Marisa Lam located?
Marisa Lam practices at 227 Madison St Medical Staff Office, Room 1249, New York, NY 10002. The listed phone number is (212) 238-7000.
What is Marisa Lam's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Marisa Lam enrolled in Medicare?
Yes. Marisa 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 Marisa Lam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marisa Lam reassigns Medicare benefits to New York City Health And Hospitals Corporation (New York, 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 Marisa Lam'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 Marisa Lam was last updated on November 20, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Marisa Lam · NPI 1477927093
Adult Health physician in New York, New York. Individual provider, active in the CMS NPPES registry since November 19, 2015.
## Identity
- **NPI:** 1477927093 (Entity type: Individual)
- **Enumerated:** November 19, 2015
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** 307393 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 227 MADISON ST, MEDICAL STAFF OFFICE, ROOM 1249, New York, NY 10002-7537
- **Phone:** (212) 238-7000
## 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:** New York City Health And Hospitals Corporation (NPI 1497859573, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** November 20, 2015
---
Source: [NPI Profile](https://npiprofile.com/npi/1477927093) · Data from the CMS NPPES public registry.