RENE WILLIAM AILLON MD
NPI 1154313930
Anesthesiology in Pittsfield, MA
About Rene William Aillon Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RENE WILLIAM AILLON MD (NPI 1154313930) is an individual anesthesiology provider in Pittsfield, Massachusetts, licensed in Massachusetts (159201) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Berkshire Medical Center, and is a graduate of Other (1994).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Rene William Aillon 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 Reassignment
Medicare enrollment records show Rene Aillon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Pittsfield, MA 01201
- Reassigned Medicare billing, Massachusetts enrollment
- 394 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 7
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.
Berkshire Medical Center
Acute Care Hospitals · Pittsfield, MAFairview Hospital
Critical Access Hospitals · Great Barrington, MAOther Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PITTSFIELD, MA 01201
PITTSFIELD, MA 01201
PITTSFIELD, MA 01201
PITTSFIELD, MA 01201
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 Rene Aillon's NPI number?
The NPI number for Rene Aillon is 1154313930. It was assigned to this individual provider in the NPPES registry on August 18, 2005.
Where is Rene Aillon located?
Rene Aillon practices at Berkshire Medical Center 725 North Street, Pittsfield, MA 01201. The listed phone number is (413) 447-2555.
What is Rene Aillon's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Rene Aillon enrolled in Medicare?
Yes. Rene Aillon 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 Rene Aillon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rene Aillon reassigns Medicare benefits to Berkshire Medical Center, Inc (Pittsfield, MA). 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 Rene Aillon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Rene Aillon affiliated with any hospitals?
According to CMS data, Rene Aillon is affiliated with Berkshire Medical Center and Fairview Hospital.
When was this NPI record last updated?
The NPPES record for Rene Aillon was last updated on July 13, 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.
# Rene William Aillon, MD · NPI 1154313930
Anesthesiology physician in Pittsfield, Massachusetts. Individual provider, active in the CMS NPPES registry since August 18, 2005.
## Identity
- **NPI:** 1154313930 (Entity type: Individual)
- **Enumerated:** August 18, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 159201 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** BERKSHIRE MEDICAL CENTER, 725 NORTH STREET, Pittsfield, MA 01201
- **Phone:** (413) 447-2555 · **Fax:** (413) 443-7039
## 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:** Berkshire Medical Center, Inc (NPI 1295765261, Pittsfield, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1994
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 3197727 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1154313930) · Data from the CMS NPPES public registry.