Marshall Katzen, MD
NPI 1326140682 · Orthopaedic Surgery Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marshall Katzen, MD is a Orthopaedic Surgery Physician provider in Worcester, MA (NPI 1326140682).
Provider details
- NPI number
- 1326140682
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 43593 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-05
- Last updated
- 2016-03-07
Frequently asked questions
- What is Marshall Katzen's NPI number?
- Marshall Katzen's National Provider Identifier (NPI) is 1326140682, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marshall Katzen's specialty?
- Marshall Katzen is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Marshall Katzen located?
- Marshall Katzen's practice location on file with NPPES is 119 Belmont St, Worcester, MA 01605-2903.
- What is Marshall Katzen's phone number?
- The practice phone number listed in the NPPES registry for Marshall Katzen is (508) 334-1955.
- Does Marshall Katzen accept Medicare?
- Marshall Katzen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marshall Katzen's NPI active?
- Yes — Marshall Katzen's NPI (1326140682) is active in the NPPES registry as of the last update on 2016-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.