NATHAN E KAUFMAN MD
NPI 1922054600
Internal Medicine in Marblehead, MA
About Nathan E Kaufman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHAN E KAUFMAN MD (NPI 1922054600) is an individual internal medicine provider in Marblehead, Massachusetts, licensed in Massachusetts (57474) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (1982).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Nathan E Kaufman 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 Nathan Kaufman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Salem, MA 01970
- Reassigned Medicare billing, Massachusetts enrollment
- 994 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 3
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.
North Shore Medical Center -
Acute Care Hospitals · Salem, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01945 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.
MARBLEHEAD, MA 01945
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 Nathan Kaufman's NPI number?
The NPI number for Nathan Kaufman is 1922054600. It was assigned to this individual provider in the NPPES registry on May 25, 2006.
Where is Nathan Kaufman located?
Nathan Kaufman practices at 1 Widger Rd Suite 201, Marblehead, MA 01945. The listed phone number is (781) 631-1415.
What is Nathan Kaufman's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nathan Kaufman enrolled in Medicare?
Yes. Nathan Kaufman 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 Nathan Kaufman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Kaufman reassigns Medicare benefits to Mass General Brigham Medical Group Northern Massachusetts Inc (Salem, 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 Nathan Kaufman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathan Kaufman accept?
Health plans from Taro Health list Nathan Kaufman 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 Nathan Kaufman affiliated with any hospitals?
According to CMS data, Nathan Kaufman is affiliated with North Shore Medical Center -.
When was this NPI record last updated?
The NPPES record for Nathan Kaufman was last updated on July 17, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Nathan E Kaufman, MD · NPI 1922054600
Internal Medicine physician in Marblehead, Massachusetts. Individual provider, active in the CMS NPPES registry since May 25, 2006.
## Identity
- **NPI:** 1922054600 (Entity type: Individual)
- **Enumerated:** May 25, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 57474 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 WIDGER RD, SUITE 201, Marblehead, MA 01945
- **Phone:** (781) 631-1415 · **Fax:** (781) 631-5175
## 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:** Mass General Brigham Medical Group Northern Massachusetts Inc (NPI 1588606123, Salem, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 1982
## Record status
- **NPPES last updated:** July 17, 2007
- **Other identifiers:** Medicaid 3024024 (MA); Medicare UPIN A66415; Medicare ID-Type Unspecified J06250
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Source: [NPI Profile](https://npiprofile.com/npi/1922054600) · Data from the CMS NPPES public registry.