Joshua Fischer, MD
Internal Medicine Physician · Marion, MA
Joshua Fischer, MD is an internal medicine physician with a practice address in Marion, Massachusetts, and NPI 1497073712, issued on May 11, 2010. Check the license (Massachusetts 1017330, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Joshua Fischer
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 1017330 MA
MD14184 RI
Self-reported in NPPES; status is on the state search - Practice location
- 345 Front St Ste 1, Marion, MA 02738
- Phone
- (508) 719-9605
- Enumerated
- May 11, 2010
- Record last updated
- Jan 2, 2026
- Fax
- (508) 905-8129
- Medicaid ID
- JF92833 RI
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Verify Joshua Fischer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1017330Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average internal medicine physician in 2024
3,797 Medicare Part D claims for 657 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 13 claims were for opioids.
Most prescribed
- Atorvastatin Calcium417 claims
- Amlodipine Besylate265 claims
- Lisinopril189 claims
- Levothyroxine Sodium175 claims
- Losartan Potassium141 claims
- Omeprazole137 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.
Joshua Fischer among 6,825 internal medicine physician records in Massachusetts
Joshua Fischer, 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 2010, is newer than 63% of them.
- NPI issued2010 · 63% of these records are older, 35% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2026 · 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).
1 internal medicine physician record lists a practice address in Marion
They are 1 of the 104 NPPES records with a practice address in Marion, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Marion → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Levy Ansaldo, M.D.New Bedford, MA 027401336127521
- Alfredo Gonzalez, M.D.New Bedford, MA 027401396730123
- William Hunt, MDNew Bedford, MA 027401265484836
- Francis Ingersoll, DONew Bedford, MA 027401366451338
- Catherine Kiley, MDNew Bedford, MA 027401235107517
- William LucasNew Bedford, MA 027401417924218
- Paul MurphyNew Bedford, MA 027401750398087
- Shabana Naz, M.D.New Bedford, MA 027401780699975
Common questions
What is Joshua Fischer, MD's NPI number?
Joshua Fischer, MD's National Provider Identifier (NPI) is 1497073712, issued on May 11, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Joshua Fischer, MD located?
The NPPES record lists a practice address at 345 Front St Ste 1, Marion, MA, 02738. Phone: (508) 719-9605. Providers update this record themselves, so call before visiting.
How can I verify Joshua Fischer, MD's license?
NPPES lists Massachusetts license number 1017330, 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 Joshua Fischer, MD prescribe under Medicare Part D?
In 2024, Joshua Fischer, MD had 3,797 Medicare Part D claims for 657 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.