THEODORE B LEFER M.D.
NPI 1578822748
Family Medicine in Greenfield, MA
About Theodore B Lefer M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THEODORE B LEFER M.D. (NPI 1578822748) is an individual family medicine provider in Greenfield, Massachusetts, licensed in Massachusetts (284728) and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS, is affiliated with Baystate Franklin Medical Center, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
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
Theodore B Lefer M.d. 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
3Medicare enrollment records show Theodore Lefer reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Northampton, MA 01060
- Reassigned Medicare billing, Massachusetts enrollment
- 539 clinicians in this Medicare group
Springfield, MA 01199
- Reassigned Medicare billing, Massachusetts enrollment
- 1,537 clinicians in this Medicare group
Springfield, VT 05156
- Reassigned Medicare billing, Vermont enrollment
- 153 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 6
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baystate Franklin Medical Center
Acute Care Hospitals · Greenfield, MABaystate Noble Hospital
Acute Care Hospitals · Westfield, MABaystate Medical Center
Acute Care Hospitals · Springfield, MAMary Hitchcock Memorial Hospital
Acute Care Hospitals · Lebanon, NHBrattleboro Memorial Hospital
Acute Care Hospitals · Brattleboro, VTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01301 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 2
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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREENFIELD, MA 01301
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 Theodore Lefer's NPI number?
The NPI number for Theodore Lefer is 1578822748. It was assigned to this individual provider in the NPPES registry on May 9, 2012.
Where is Theodore Lefer located?
Theodore Lefer practices at 164 High Street, Greenfield, MA 01301. The listed phone number is (413) 772-0211.
What is Theodore Lefer's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Theodore Lefer enrolled in Medicare?
Yes. Theodore Lefer 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 Theodore Lefer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Theodore Lefer reassigns Medicare benefits to 3 organizations: Mass General Brigham Medical Group Western Massachusetts Inc (Northampton, MA), Baystate Medical Practices, Inc (Springfield, MA) and Springfield Hospital (Springfield, VT). 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 Theodore Lefer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Theodore Lefer accept?
Health plans from Taro Health list Theodore Lefer 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.
Is Theodore Lefer affiliated with any hospitals?
According to CMS data, Theodore Lefer is affiliated with Baystate Franklin Medical Center, Baystate Noble Hospital, Baystate Medical Center, Mary Hitchcock Memorial Hospital and Brattleboro Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Theodore Lefer was last updated on June 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Theodore B Lefer, M.D. · NPI 1578822748
Family Medicine physician in Greenfield, Massachusetts. Individual provider, active in the CMS NPPES registry since May 9, 2012.
## Identity
- **NPI:** 1578822748 (Entity type: Individual)
- **Enumerated:** May 9, 2012
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 284728 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 164 HIGH STREET, Greenfield, MA 01301-2613
- **Phone:** (413) 772-0211 · **Fax:** (413) 794-1767
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Mass General Brigham Medical Group Western Massachusetts Inc (NPI 1295787919, Northampton, MA); Baystate Medical Practices, Inc (NPI 1548205909, Springfield, MA); Springfield Hospital (NPI 1033225875, Springfield, VT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** June 4, 2024
- **Other identifiers:** Medicaid 3122212 (NH); Medicaid 6703475 (VT)
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Source: [NPI Profile](https://npiprofile.com/npi/1578822748) · Data from the CMS NPPES public registry.