DR. BARBARA A GRECO MD
NPI 1366428682
Internal Medicine - Nephrology in Springfield, MA
About Dr. Barbara A Greco Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BARBARA A GRECO MD (NPI 1366428682) is an individual nephrology provider in Springfield, Massachusetts, licensed in Massachusetts (54226) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 8
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)
Dr. Barbara A Greco Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Barbara Greco reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, MA 01107
- Reassigned Medicare billing, Massachusetts enrollment
- 23 clinicians in this Medicare group
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01107 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 7
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 01107
SPRINGFIELD, MA 01107
SPRINGFIELD, MA 01107
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 Barbara Greco's NPI number?
The NPI number for Barbara Greco is 1366428682. It was assigned to this individual provider in the NPPES registry on December 19, 2005.
Where is Barbara Greco located?
Barbara Greco practices at 100 Wason Ave Suite 200, Springfield, MA 01107. The listed phone number is (413) 733-9666.
What is Barbara Greco's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Barbara Greco enrolled in Medicare?
Yes. Barbara Greco is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Barbara Greco's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Barbara Greco reassigns Medicare benefits to 2 organizations: Renal And Transplant Associates Of New England PC (Springfield, MA) and Baystate Medical Practices, Inc (Springfield, MA). 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 Barbara Greco's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Barbara Greco accept?
Health plans from Taro Health list Barbara Greco 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 Barbara Greco was last updated on March 5, 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.
# Dr. Barbara A Greco, MD · NPI 1366428682
Nephrology physician in Springfield, Massachusetts. Individual provider, active in the CMS NPPES registry since December 19, 2005.
## Identity
- **NPI:** 1366428682 (Entity type: Individual)
- **Enumerated:** December 19, 2005
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** 54226 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 WASON AVE, SUITE 200, Springfield, MA 01107-1119
- **Phone:** (413) 733-9666 · **Fax:** (413) 750-3432
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Renal And Transplant Associates Of New England PC (NPI 1235535204, Springfield, MA); Baystate Medical Practices, Inc (NPI 1548205909, Springfield, MA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 5, 2014
- **Other identifiers:** Medicaid 003108744 (CT); Medicaid 0113123 (MA); Medicare PIN 390000137 (CT); and 5 more
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Source: [NPI Profile](https://npiprofile.com/npi/1366428682) · Data from the CMS NPPES public registry.