Katherine Sadaniantz, MD
NPI 1598344061 · Internal Medicine Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Sadaniantz, MD is a Internal Medicine Physician provider in Worcester, MA (NPI 1598344061).
Provider details
- NPI number
- 1598344061
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 1019817 (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
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 55 Lake Ave NWorcester, MA 01655-0002Phone: (508) 334-1000
Registry dates
- Enumerated
- 2021-04-03
- Last updated
- 2024-12-19
- Certified
- 2024-12-19
Frequently asked questions
- What is Katherine Sadaniantz's NPI number?
- Katherine Sadaniantz's National Provider Identifier (NPI) is 1598344061, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Sadaniantz's specialty?
- Katherine Sadaniantz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Sadaniantz located?
- Katherine Sadaniantz's practice location on file with NPPES is 119 Belmont St, Worcester, MA 01605-2903.
- What is Katherine Sadaniantz's phone number?
- The practice phone number listed in the NPPES registry for Katherine Sadaniantz is (508) 334-8515.
- Does Katherine Sadaniantz accept Medicare?
- Katherine Sadaniantz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Sadaniantz's NPI active?
- Yes — Katherine Sadaniantz's NPI (1598344061) is active in the NPPES registry as of the last update on 2024-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.