Marianna Sarnik, MD
NPI 1427098144 · Internal Medicine Physician · Fitchburg, MA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marianna Sarnik, MD is a Internal Medicine Physician provider in Fitchburg, MA (NPI 1427098144).
Provider details
- NPI number
- 1427098144
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 242310 (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
20 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
- 2006-06-08
- Last updated
- 2012-10-02
Frequently asked questions
- What is Marianna Sarnik's NPI number?
- Marianna Sarnik's National Provider Identifier (NPI) is 1427098144, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marianna Sarnik's specialty?
- Marianna Sarnik is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marianna Sarnik located?
- Marianna Sarnik's practice location on file with NPPES is Va Clinic, Fitchburg, MA 01420.
- What is Marianna Sarnik's phone number?
- The practice phone number listed in the NPPES registry for Marianna Sarnik is (978) 342-9781.
- Does Marianna Sarnik accept Medicare?
- Marianna Sarnik is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marianna Sarnik's NPI active?
- Yes — Marianna Sarnik's NPI (1427098144) is active in the NPPES registry as of the last update on 2012-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.