ADAM MEI
NPI 1821618927
Emergency Medicine in Plainview, NY
About Adam Mei NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ADAM MEI (NPI 1821618927) is an individual emergency medicine provider in Plainview, New York, licensed in New York (329754-01) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with North Shore University Hospital, and is a graduate of Touro Un Col Of Osteopathic Medicine, New York (2020).
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
Adam Mei 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 Adam Mei reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 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.
North Shore University Hospital
Acute Care Hospitals · Manhasset, NYPlainview Hospital
Acute Care Hospitals · Plainview, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11803 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.
PLAINVIEW, NY 11803
PLAINVIEW, NY 11803
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 Adam Mei's NPI number?
The NPI number for Adam Mei is 1821618927. It was assigned to this individual provider in the NPPES registry on April 20, 2020.
Where is Adam Mei located?
Adam Mei practices at 888 Old Country Rd, Plainview, NY 11803. The listed phone number is (516) 719-3000.
What is Adam Mei's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Adam Mei enrolled in Medicare?
Yes. Adam Mei 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 Adam Mei's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Adam Mei reassigns Medicare benefits to North Shore-Lij Medical PC (Great Neck, 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 Adam Mei's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Adam Mei affiliated with any hospitals?
According to CMS data, Adam Mei is affiliated with North Shore University Hospital and Plainview Hospital.
When was this NPI record last updated?
The NPPES record for Adam Mei was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Adam Mei · NPI 1821618927
Emergency Medicine physician in Plainview, New York. Individual provider, active in the CMS NPPES registry since April 20, 2020.
## Identity
- **NPI:** 1821618927 (Entity type: Individual)
- **Enumerated:** April 20, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 329754-01 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 888 OLD COUNTRY RD, Plainview, NY 11803-4914
- **Phone:** (516) 719-3000
## 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:** North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Touro Un Col Of Osteopathic Medicine, New York, class of 2020
## Record status
- **NPPES last updated:** July 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1821618927) · Data from the CMS NPPES public registry.