ETHAN J ROWIN MD
NPI 1578790283
Internal Medicine - Cardiovascular Disease in Boston, MA
About Ethan J Rowin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ETHAN J ROWIN MD (NPI 1578790283) is an individual cardiovascular disease provider in Boston, Massachusetts, licensed in Massachusetts (251946) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Lahey Hospital & Medical Center, Burlington, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 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
Ethan J Rowin 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 Reassignments
5Medicare enrollment records show Ethan Rowin reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02111
- Reassigned Medicare billing, Massachusetts enrollment
- 133 clinicians in this Medicare group
Boston, MA 02111
- Reassigned Medicare billing, Massachusetts enrollment
- 132 clinicians in this Medicare group
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1063447316 (Massachusetts)
- 1,574 clinicians in this Medicare group
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 clinicians in this Medicare group
Fall River, MA 02720
- Reassigned Medicare billing, Massachusetts enrollment
- 163 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 11
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lahey Hospital & Medical Center, Burlington
Acute Care Hospitals · Burlington, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02111 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 02111
BOSTON, MA 02111
BOSTON, MA 02111
BOSTON, MA 02111
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 Ethan Rowin's NPI number?
The NPI number for Ethan Rowin is 1578790283. It was assigned to this individual provider in the NPPES registry on June 20, 2009.
Where is Ethan Rowin located?
Ethan Rowin practices at 800 Washington St, Boston, MA 02111. The listed phone number is (617) 636-5000.
What is Ethan Rowin's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Ethan Rowin enrolled in Medicare?
Yes. Ethan Rowin 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 Ethan Rowin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ethan Rowin reassigns Medicare benefits to 5 organizations: Cardiovascular Center At Tufts Medical Center, Inc. (Boston, MA), Pratt Radiology Associates, Inc (Boston, MA), Lahey Clinic, Inc. (Burlington, MA), Umass Memorial Medical Group Inc (Worcester, MA) and Southcoast Hospitals Group, Inc (Fall River, 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 Ethan Rowin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ethan Rowin accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Ethan Rowin 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 Ethan Rowin affiliated with any hospitals?
According to CMS data, Ethan Rowin is affiliated with Lahey Hospital & Medical Center, Burlington.
When was this NPI record last updated?
The NPPES record for Ethan Rowin was last updated on June 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Ethan J Rowin, MD · NPI 1578790283
Cardiovascular Disease physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 20, 2009.
## Identity
- **NPI:** 1578790283 (Entity type: Individual)
- **Enumerated:** June 20, 2009
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** 251946 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 800 WASHINGTON ST, Boston, MA 02111-1552
- **Phone:** (617) 636-5000
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Cardiovascular Center At Tufts Medical Center, Inc. (NPI 1447764253, Boston, MA); Pratt Radiology Associates, Inc (NPI 1154361780, Boston, MA); Lahey Clinic, Inc. (NPI 1538194980, Burlington, MA); Umass Memorial Medical Group Inc (NPI 1760445373, Worcester, MA); Southcoast Hospitals Group, Inc (NPI 1306871223, Fall River, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** June 16, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1578790283) · Data from the CMS NPPES public registry.