MARSHALL KATZEN MD
NPI 1326140682
Orthopaedic Surgery in Worcester, MA
About Marshall Katzen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARSHALL KATZEN MD (NPI 1326140682) is an individual orthopaedic surgery provider in Worcester, Massachusetts, licensed in Massachusetts (43593) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Martha's Vineyard Hospital Inc, and is a graduate of Tufts University School Of Medicine (1972).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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
Marshall Katzen 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 Marshall Katzen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Oak Bluffs, MA 02557
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1194866210 (Massachusetts)
- 184 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.
Martha's Vineyard Hospital Inc
Critical Access Hospitals · Oak Bluffs, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01605 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.
WORCESTER, MA 01605
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 Marshall Katzen's NPI number?
The NPI number for Marshall Katzen is 1326140682. It was assigned to this individual provider in the NPPES registry on September 5, 2006.
Where is Marshall Katzen located?
Marshall Katzen practices at 119 Belmont St Dept Of Orthopedics, Worcester, MA 01605. The listed phone number is (508) 334-1955.
What is Marshall Katzen's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Marshall Katzen enrolled in Medicare?
Yes. Marshall Katzen 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 Marshall Katzen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marshall Katzen reassigns Medicare benefits to Martha's Vineyard Hospital, Inc. (Oak Bluffs, 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 Marshall Katzen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marshall Katzen accept?
Health plans from Anthem Blue Cross and Blue Shield list Marshall Katzen 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 Marshall Katzen affiliated with any hospitals?
According to CMS data, Marshall Katzen is affiliated with Martha's Vineyard Hospital Inc.
When was this NPI record last updated?
The NPPES record for Marshall Katzen was last updated on March 7, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Marshall Katzen, MD · NPI 1326140682
Orthopaedic Surgery physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since September 5, 2006.
## Identity
- **NPI:** 1326140682 (Entity type: Individual)
- **Enumerated:** September 5, 2006
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 43593 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 119 BELMONT ST, DEPT OF ORTHOPEDICS, Worcester, MA 01605-2903
- **Phone:** (508) 334-1955 · **Fax:** (508) 334-9762
## 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:** Martha's Vineyard Hospital, Inc. (NPI 1134206386, Oak Bluffs, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 1972
## Record status
- **NPPES last updated:** March 7, 2016
- **Other identifiers:** Medicaid 0177709 (MA); Medicare PIN N01803 (MA); Medicaid 110006346A (MA); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1326140682) · Data from the CMS NPPES public registry.