CHESTNUT MEDICAL ASSOCIATES, INC
NPI 1679565543
Internal Medicine in Springfield, MA
About Chestnut Medical Associates, Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHESTNUT MEDICAL ASSOCIATES, INC (NPI 1679565543) is a healthcare organization registered as an internal medicine in Springfield, Massachusetts and active in the NPI registry since August 2005. The organization lists John A Egelhofer, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Chestnut Medical Associates, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
7Medicare enrollment records show 7 clinicians reassign Medicare billing to Chestnut Medical Associates, Inc, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 6 within 10 miles. They are listed nearest first.
Clinicians, nearest first (7)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Chestnut Medical Associates, Inc's NPI number?
The NPI number for Chestnut Medical Associates, Inc is 1679565543. It was assigned to this organization in the NPPES registry on August 17, 2005.
Where is Chestnut Medical Associates, Inc located?
Chestnut Medical Associates, Inc is located at 300 Birnie Ave Ste 102, Springfield, MA 01107. The listed phone number is (413) 734-4206.
What is Chestnut Medical Associates, Inc's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Chestnut Medical Associates, Inc enrolled in Medicare?
Yes. Chestnut Medical Associates, Inc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Chestnut Medical Associates, Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 2 Medicare specialties reassign their Medicare billing to Chestnut Medical Associates, Inc. A 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 the clinician's services. The largest specialties are Nurse Practitioner (5) and Internal Medicine (2). Of these, 3 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Chestnut Medical Associates, Inc was last updated on April 25, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Chestnut Medical Associates, Inc · NPI 1679565543
Internal Medicine organization in Springfield, Massachusetts. Organization record, active in the CMS NPPES registry since August 17, 2005.
## Identity
- **NPI:** 1679565543 (Entity type: Organization)
- **Enumerated:** August 17, 2005
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** John Egelhofer, PRESIDENT
## Practice location
- **Address:** 300 BIRNIE AVE, STE 102, Springfield, MA 01107-1107
- **Phone:** (413) 734-4206 · **Fax:** (413) 737-8882
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 7 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (5), Internal Medicine (2); 3 practice at this address and 6 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 25, 2008
- **Other identifiers:** Medicaid 9786694 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1679565543) · Data from the CMS NPPES public registry.