Marianna Sarnik, MD
Internal Medicine Physician · Fitchburg, MA
Marianna Sarnik, MD is an internal medicine physician with a practice address in Fitchburg, Massachusetts, and NPI 1427098144, issued on Jun 8, 2006. Check the license (Massachusetts 242310, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Marianna Sarnik
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 242310 MA
Self-reported in NPPES; status is on the state search - Practice location
- VA Clinic, Fitchburg, MA 01420
- Phone
- (978) 342-9781
- Enumerated
- Jun 8, 2006
- Record last updated
- Oct 2, 2012 (not updated in 14 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Verify Marianna Sarnik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 242310Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
48 Medicare Part D claims for 13 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Marianna Sarnik among 6,825 internal medicine physician records in Massachusetts
Marianna Sarnik, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2012 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 internal medicine physician records list a practice address in Fitchburg
They are 11 of the 1,119 NPPES records with a practice address in Fitchburg, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Fitchburg → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Knute Alfredson, MDFitchburg, MA 014201003922576
- Jesus Blanco, M.D.Fitchburg, MA 014201275590473
- Roberto Carcamo-Sanabria, MDFitchburg, MA 014201841308616
- Danilo Funa, M.D.Fitchburg, MA 014201235184102
- Eric Knutson, MDFitchburg, MA 014201932190691
- Anne Lipton, M.D.Fitchburg, MA 014201902838170
- Vasuki Radhakrishnan, M.D.Fitchburg, MA 014201982665089
- Vu Hoang Tran, MDFitchburg, MA 014201619473485
Common questions
What is Marianna Sarnik, MD's NPI number?
Marianna Sarnik, MD's National Provider Identifier (NPI) is 1427098144, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marianna Sarnik, MD located?
The NPPES record lists a practice address at VA Clinic, Fitchburg, MA, 01420. Phone: (978) 342-9781. Providers update this record themselves, so call before visiting.
How can I verify Marianna Sarnik, MD's license?
NPPES lists Massachusetts license number 242310, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marianna Sarnik, MD prescribe under Medicare Part D?
In 2024, Marianna Sarnik, MD had 48 Medicare Part D claims for 13 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.