MAXWELL BOASIAKO ANTWI
NPI 1336770718
Nurse Practitioner in Williamsville, NY
About Maxwell Boasiako Antwi NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAXWELL BOASIAKO ANTWI (NPI 1336770718) is an individual nurse practitioner in Williamsville, New York, licensed in New York (309224) and active in the NPI registry since February 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 2
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
Maxwell Boasiako Antwi 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 Maxwell Antwi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Williamsville, NY 14221
- Reassigned Medicare billing, New York enrollment
- 61 clinicians in this Medicare group
Amherst, NY 14226
- Reassigned Medicare billing, New York enrollment
- 84 clinicians in this Medicare group
Perryville, MD 21903
- Reassigned Medicare billing, Maryland enrollment
- 512 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14221 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.
WILLIAMSVILLE, NY 14221
WILLIAMSVILLE, NY 14221
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 Maxwell Antwi's NPI number?
The NPI number for Maxwell Antwi is 1336770718. It was assigned to this individual provider in the NPPES registry on February 4, 2020.
Where is Maxwell Antwi located?
Maxwell Antwi practices at 40 George Karl Blvd, Williamsville, NY 14221. The listed phone number is (716) 218-1000.
What is Maxwell Antwi's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Maxwell Antwi enrolled in Medicare?
Yes. Maxwell Antwi 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 Maxwell Antwi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maxwell Antwi reassigns Medicare benefits to 3 organizations: University At Buffalo Neurosurgery, Inc. (Williamsville, NY), Wny Medical PC (Amherst, NY) and Union Hospital Of Cecil County, Inc (Perryville, MD). 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 Maxwell Antwi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Maxwell Antwi accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan list Maxwell Antwi 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.
When was this NPI record last updated?
The NPPES record for Maxwell Antwi was last updated on February 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Maxwell Boasiako Antwi · NPI 1336770718
Nurse Practitioner physician in Williamsville, New York. Individual provider, active in the CMS NPPES registry since February 4, 2020.
## Identity
- **NPI:** 1336770718 (Entity type: Individual)
- **Enumerated:** February 4, 2020
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 309224 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 40 GEORGE KARL BLVD, Williamsville, NY 14221-7183
- **Phone:** (716) 218-1000 · **Fax:** (716) 923-4384
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): University At Buffalo Neurosurgery, Inc. (NPI 1306896220, Williamsville, NY); Wny Medical PC (NPI 1154421246, Amherst, NY); Union Hospital Of Cecil County, Inc (NPI 1639920648, Perryville, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** February 7, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1336770718) · Data from the CMS NPPES public registry.