DR. SEAN DASILVA MD
NPI 1952520280
Anesthesiology - Pain Medicine in Williamsville, NY
About Dr. Sean Dasilva Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SEAN DASILVA MD (NPI 1952520280) is an individual pain medicine provider in Williamsville, New York, licensed in New York (A268369) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with Kaleida Health, and maintains a secondary practice location in Buffalo.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Dr. Sean Dasilva Md 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
9Medicare enrollment records show Sean Dasilva reassigns Medicare billing to 9 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
Cheektowaga, NY 14225
- Reassigned Medicare billing, New York enrollment
- 124 clinicians in this Medicare group
Amherst, NY 14226
- Reassigned Medicare billing, New York enrollment
- 41 clinicians in this Medicare group
Buffalo, NY 14215
- Reassigned Medicare billing, New York enrollment
- 66 clinicians in this Medicare group
Buffalo, NY 14215
- Reassigned Medicare billing, New York enrollment
- Also billed through NPI 1528233616 (New York)
- 54 clinicians in this Medicare group
Buffalo, NY 14214
- Reassigned Medicare billing, New York enrollment
- 117 clinicians in this Medicare group
Buffalo, NY 14203
- Reassigned Medicare billing, New York enrollment
- 182 clinicians in this Medicare group
Buffalo, NY 14220
- Reassigned Medicare billing, New York enrollment
- 40 clinicians in this Medicare group
Batavia, NY 14020
- Reassigned Medicare billing, New York enrollment
- 782 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 2
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Kaleida Health
Acute Care Hospitals · Buffalo, NYKenmore Mercy Hospital
Acute Care Hospitals · Kenmore, NYErie County Medical Center
Acute Care Hospitals · Buffalo, NYOther Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Sean Dasilva's NPI number?
The NPI number for Sean Dasilva is 1952520280. It was assigned to this individual provider in the NPPES registry on April 25, 2007.
Where is Sean Dasilva located?
Sean Dasilva practices at 5 Limestone Dr, Williamsville, NY 14221. The listed phone number is (585) 738-2505.
What is Sean Dasilva's specialty?
The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.
Is Sean Dasilva enrolled in Medicare?
Yes. Sean Dasilva 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 Sean Dasilva's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sean Dasilva reassigns Medicare benefits to 9 organizations: Sean Dasilva, MD, PC (Williamsville, NY), Maple Gate Anesthesiologists, P.C. (Cheektowaga, NY), Ambulatory Medical Anesthesia Service, PC (Amherst, NY), Anesthesiology Medical Consultants, PLLC (Buffalo, NY), Erie County Medical Center Corporation (Buffalo, NY) and 4 more organizations, listed in the Medicare section above. 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 Sean Dasilva's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Sean Dasilva affiliated with any hospitals?
According to CMS data, Sean Dasilva is affiliated with Kaleida Health, Kenmore Mercy Hospital and Erie County Medical Center.
When was this NPI record last updated?
The NPPES record for Sean Dasilva was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Sean Dasilva, MD · NPI 1952520280
Pain Medicine physician in Williamsville, New York. Individual provider, active in the CMS NPPES registry since April 25, 2007.
## Identity
- **NPI:** 1952520280 (Entity type: Individual)
- **Enumerated:** April 25, 2007
- **Primary specialty:** Anesthesiology - Pain Medicine · taxonomy 207LP2900X
- **State license:** A268369 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 5 LIMESTONE DR, Williamsville, NY 14221-7178
- **Phone:** (585) 738-2505
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Sean Dasilva, MD, PC (NPI 1962387829, Williamsville, NY); Maple Gate Anesthesiologists, P.C. (NPI 1528072709, Cheektowaga, NY); Ambulatory Medical Anesthesia Service, PC (NPI 1609813583, Amherst, NY); Anesthesiology Medical Consultants, PLLC (NPI 1366487555, Buffalo, NY); Erie County Medical Center Corporation (NPI 1790118917, Buffalo, NY); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** September 2, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1952520280) · Data from the CMS NPPES public registry.