Marsha Nalini Mather, MD
Internal Medicine Physician · Hyannis, MA
Marsha Nalini Mather, MD is an internal medicine physician with a practice address in Hyannis, Massachusetts, and NPI 1831772623, issued on Apr 30, 2021. Check the license (Massachusetts 1018443, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Marsha Nalini Mather
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 1018443 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1030 Falmouth RD Ste 101, Hyannis, MA 02601
- Phone
- (774) 552-3209
- Enumerated
- Apr 30, 2021
- Record last updated
- Jan 8, 2025
- Medicare enrollment
- Enrolled (PECOS I20240917003830); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 1030 Falmouth RD Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charles BaderFamily Medicine Physician1588314280
- Shelby Stewart, NP-CPrimary Care Nurse Practitioner1609688050
- Holly WomackStudent in an Organized Health Care Education/Training Program1114556206
Verify Marsha Nalini Mather in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1018443Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average internal medicine physician in 2024
583 Medicare Part D claims for 176 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium46 claims
- Levothyroxine Sodium39 claims
- Lisinopril33 claims
- Omeprazole30 claims
- Metoprolol Tartrate22 claims
- Rosuvastatin Calcium22 claims
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.
Bills Medicare through 2 group practices
- Medical Affiliates OF Cape Cod IncHyannis, MA
- Physicians OF Cape Cod HospitalHyannis, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marsha Nalini Mather among 6,825 internal medicine physician records in Massachusetts
Marsha Nalini Mather, 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 2021, is newer than 89% of them.
- NPI issued2021 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2014 · median 2004 among the 4,103 with a school on file
- Record last updated2025 · 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).
51 internal medicine physician records list a practice address in Hyannis
They are 51 of the 1,457 NPPES records with a practice address in Hyannis, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Hyannis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Grover Baxley, MDHyannis, MA 026011912961707
- Conrad Benoit, D.O.Hyannis, MA 026011629059985
- Paul Bizinkauskas, M.D.Hyannis, MA 026011578521415
- James Chingos, MDHyannis, MA 026011508826421
- Arthur Crago, MDHyannis, MA 026011851340475
- Abraham Dietz, MDHyannis, MA 026011518917186
- Andrew Flewwelling, MDHyannis, MA 026011396717468
- Patricia Hammel, MDHyannis, MA 026011467403543
Common questions
What is Marsha Nalini Mather, MD's NPI number?
Marsha Nalini Mather, MD's National Provider Identifier (NPI) is 1831772623, issued on Apr 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Marsha Nalini Mather, MD located?
The NPPES record lists a practice address at 1030 Falmouth RD Ste 101, Hyannis, MA, 02601. Phone: (774) 552-3209. Providers update this record themselves, so call before visiting.
How can I verify Marsha Nalini Mather, MD's license?
NPPES lists Massachusetts license number 1018443, 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 Marsha Nalini Mather, MD prescribe under Medicare Part D?
In 2024, Marsha Nalini Mather, MD had 583 Medicare Part D claims for 176 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.