DR. JONATHAN LASH MD
NPI 1073191276
Orthopaedic Surgery in Boston, MA
About Dr. Jonathan Lash Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JONATHAN LASH MD (NPI 1073191276) is an individual orthopaedic surgery provider in Boston, Massachusetts, licensed in Massachusetts (1025898) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Faulkner Hospital-brigham And Women's, and is a graduate of Baylor College Of Medicine (2021).
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 and accepts Medicare assignment
Dr. Jonathan Lash 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 Jonathan Lash reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Faulkner Hospital-Brigham And Women's
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02115 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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Jonathan Lash's NPI number?
The NPI number for Jonathan Lash is 1073191276. It was assigned to this individual provider in the NPPES registry on March 30, 2021.
Where is Jonathan Lash located?
Jonathan Lash practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 732-5500.
What is Jonathan Lash's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Jonathan Lash enrolled in Medicare?
Yes. Jonathan Lash 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 Jonathan Lash's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Lash reassigns Medicare benefits to Brigham & Womens Physicians Organization Inc (Boston, 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 Jonathan Lash's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jonathan Lash accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Jonathan Lash 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 Jonathan Lash affiliated with any hospitals?
According to CMS data, Jonathan Lash is affiliated with Faulkner Hospital-Brigham And Women's.
When was this NPI record last updated?
The NPPES record for Jonathan Lash was last updated on October 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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. Jonathan Lash, MD · NPI 1073191276
Orthopaedic Surgery physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 30, 2021.
## Identity
- **NPI:** 1073191276 (Entity type: Individual)
- **Enumerated:** March 30, 2021
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 1025898 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 75 FRANCIS ST, Boston, MA 02115-6110
- **Phone:** (617) 732-5500
## 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:** Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Baylor College Of Medicine, class of 2021
## Record status
- **NPPES last updated:** October 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1073191276) · Data from the CMS NPPES public registry.