JAMES D MUELLER MD
NPI 1639287956
Pathology - Anatomic Pathology & Clinical Pathology in Springfield, MA
About James D Mueller Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES D MUELLER MD (NPI 1639287956) is an individual anatomic pathology & clinical pathology provider in Springfield, Massachusetts, licensed in Massachusetts (72778) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
James D Mueller Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show James Mueller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Springfield, MA 01199
- Reassigned Medicare billing, Massachusetts enrollment
- 1,537 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 16
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 01199 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.
SPRINGFIELD, MA 01199
SPRINGFIELD, MA 01199
SPRINGFIELD, MA 01199
SPRINGFIELD, MA 01199
SPRINGFIELD, MA 01199
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 James Mueller's NPI number?
The NPI number for James Mueller is 1639287956. It was assigned to this individual provider in the NPPES registry on August 27, 2006.
Where is James Mueller located?
James Mueller practices at 759 Chestnut St D1170, Springfield, MA 01199. The listed phone number is (413) 794-4500.
What is James Mueller's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is James Mueller enrolled in Medicare?
Yes. James Mueller is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for James Mueller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Mueller reassigns Medicare benefits to Baystate Medical Practices, Inc (Springfield, 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 James Mueller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Mueller accept?
Health plans from Taro Health list James Mueller 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 James Mueller was last updated on October 3, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.