PETER B SMULOWITZ M.D.
NPI 1891753398
Emergency Medicine in Boston, MA
About Peter B Smulowitz M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PETER B SMULOWITZ M.D. (NPI 1891753398) is an individual emergency medicine provider in Boston, Massachusetts, licensed in Massachusetts (226374) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Milford Regional Medical Center, and is a graduate of University Of California, Irvine, California College Of Medicine (2003).
NPPES Registry Identity
Specialties & Licenses
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
Peter B Smulowitz 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
7Medicare enrollment records show Peter Smulowitz reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,006 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,477 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 247 clinicians in this Medicare group
Milton, MA 02186
- Reassigned Medicare billing, Massachusetts enrollment
- 177 clinicians in this Medicare group
Concord, MA 01742
- Reassigned Medicare billing, Massachusetts enrollment
- 35 clinicians in this Medicare group
Milford, MA 01757
- Reassigned Medicare billing, Massachusetts enrollment
- 37 clinicians in this Medicare group
Wareham, MA 02571
- 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 2
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.
Milford Regional Medical Center
Acute Care Hospitals · Milford, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Peter Smulowitz's NPI number?
The NPI number for Peter Smulowitz is 1891753398. It was assigned to this individual provider in the NPPES registry on May 3, 2006.
Where is Peter Smulowitz located?
Peter Smulowitz practices at 330 Brookine Avenue, Wcc2 Beth Israel Deaconess Medical Center, Boston, MA 02215. The listed phone number is (617) 754-2339.
What is Peter Smulowitz's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Peter Smulowitz enrolled in Medicare?
Yes. Peter Smulowitz 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 Peter Smulowitz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Smulowitz reassigns Medicare benefits to 7 organizations: Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA), Beth Israel Deaconess Medical Center, Inc. (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA), Bid-Milton Physician Associates Inc (Milton, MA), Emerson Emergency Physicians LLC (Concord, MA) and 2 more organizations, listed in the Medicare section above. 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 Peter Smulowitz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Peter Smulowitz affiliated with any hospitals?
According to CMS data, Peter Smulowitz is affiliated with Milford Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Peter Smulowitz was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Peter B Smulowitz, M.D. · NPI 1891753398
Emergency Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since May 3, 2006.
## Identity
- **NPI:** 1891753398 (Entity type: Individual)
- **Enumerated:** May 3, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 226374 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 330 BROOKINE AVENUE, WCC2, BETH ISRAEL DEACONESS MEDICAL CENTER, Boston, MA 02215
- **Phone:** (617) 754-2339
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1861216038, Boston, MA); Beth Israel Deaconess Medical Center, Inc. (NPI 1548202641, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1316987993, Boston, MA); Bid-Milton Physician Associates Inc (NPI 1184312738, Milton, MA); Emerson Emergency Physicians LLC (NPI 1972742542, Concord, MA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Irvine, California College Of Medicine, class of 2003
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1891753398) · Data from the CMS NPPES public registry.