ROBERT A. LOWENSTEIN MD
NPI 1164496121
Emergency Medicine in Boston, MA
About Robert A. Lowenstein Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT A. LOWENSTEIN MD (NPI 1164496121) is an individual emergency medicine provider in Boston, Massachusetts, licensed in Massachusetts (210488) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with St Elizabeth's Medical Center, and is a graduate of Boston University School Of Medicine (1999).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 10
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
Robert A. Lowenstein 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
4Medicare enrollment records show Robert Lowenstein reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 716 clinicians in this Medicare group
Lawrence, MA 01841
- Reassigned Medicare billing, Massachusetts enrollment
- 305 clinicians in this Medicare group
Ayer, MA 01432
- Reassigned Medicare billing, Massachusetts enrollment
- 290 clinicians in this Medicare group
Oakland, CA 94607
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Geniemd Medical Group Mo PC
- 62 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Elizabeth's Medical Center
Acute Care Hospitals · Brighton, MAGood Samaritan Medical Center
Acute Care Hospitals · Brockton, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02118 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 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
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 Robert Lowenstein's NPI number?
The NPI number for Robert Lowenstein is 1164496121. It was assigned to this individual provider in the NPPES registry on February 15, 2006.
Where is Robert Lowenstein located?
Robert Lowenstein practices at 1 Boston Medical Ctr Pl Dowling 1 South, Boston, MA 02118. The listed phone number is (617) 414-5481.
What is Robert Lowenstein's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Robert Lowenstein enrolled in Medicare?
Yes. Robert Lowenstein 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 Robert Lowenstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Lowenstein reassigns Medicare benefits to 4 organizations: Bmc Affiliated Physicians, Inc. (Boston, MA), Community Medical Associates, Inc. (Lawrence, MA), Steward Emergency Physicians, Inc (Ayer, MA) and Geniemd Medical Group, Mo, P.C. (Oakland, CA). 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 Robert Lowenstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Lowenstein accept?
Health plans from WellSense Health Plan list Robert Lowenstein 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 Robert Lowenstein affiliated with any hospitals?
According to CMS data, Robert Lowenstein is affiliated with St Elizabeth's Medical Center and Good Samaritan Medical Center.
When was this NPI record last updated?
The NPPES record for Robert Lowenstein was last updated on May 15, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Robert A. Lowenstein, MD · NPI 1164496121
Emergency Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since February 15, 2006.
## Identity
- **NPI:** 1164496121 (Entity type: Individual)
- **Enumerated:** February 15, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 210488 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BOSTON MEDICAL CTR PL, DOWLING 1 SOUTH, Boston, MA 02118-2908
- **Phone:** (617) 414-5481 · **Fax:** (617) 414-7759
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Bmc Affiliated Physicians, Inc. (NPI 1245320910, Boston, MA); Community Medical Associates, Inc. (NPI 1144544040, Lawrence, MA); Steward Emergency Physicians, Inc (NPI 1780971275, Ayer, MA); Geniemd Medical Group, Mo, P.C. (NPI 1639710643, Oakland, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Boston University School Of Medicine, class of 1999
## Record status
- **NPPES last updated:** May 15, 2008
- **Other identifiers:** Medicaid 0158780 (MA); Medicare PIN P00428462 (MA); Other AA101441 (MA); and 7 more
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Source: [NPI Profile](https://npiprofile.com/npi/1164496121) · Data from the CMS NPPES public registry.