Sanjay Basu, MD
Internal Medicine Physician · Ayer, MA
Sanjay Basu, MD is an internal medicine physician with a practice address in Ayer, Massachusetts, and NPI 1285682450, issued on May 4, 2006. Check the license (Massachusetts 227832, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Sanjay Basu
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 227832 MA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Groton RD, Ayer, MA 01432
- Phone
- (978) 784-9000
- Enumerated
- May 4, 2006
- Record last updated
- Jul 17, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20060608000102); 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 200 Groton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jessica Blood, RDRegistered Dietitian1174114672
- Gary Donia, MPTPhysical Therapist1033321344
Verify Sanjay Basu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 227832Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% more Medicare Part D claims than the average internal medicine physician in 2024
4,737 Medicare Part D claims for 312 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 97 claims were for opioids.
Most prescribed
- Atorvastatin Calcium370 claims
- Amlodipine Besylate263 claims
- Lisinopril217 claims
- Losartan Potassium171 claims
- Omeprazole165 claims
- Levothyroxine Sodium152 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 one group practice
- Revere Medical OF Massachusetts PCGroton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sanjay Basu among 6,825 internal medicine physician records in Massachusetts
Sanjay Basu, 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 fileYes · 60% of these records are
- Graduated2001 · median 2004 among the 4,103 with a school on file
- Record last updated2015 · 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).
3 internal medicine physician records list a practice address in Ayer
They are 3 of the 118 NPPES records with a practice address in Ayer, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Ayer → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Susan Lucas, MDAyer, MA 014321497744676
- Sandra Howard, M.D.Ayer, MA 014341487803011
- Nithya Agrawal, MD., MS., MPHGardner, MA 014401982811212
- Aqueel Imran, M.D.Gardner, MA 014401750581963
- Hanish Jain, MDGardner, MA 014401518443019
- Erin O'Hara, M.D.Gardner, MA 014401942407077
- Knute Alfredson, MDFitchburg, MA 014201003922576
- Jesus Blanco, M.D.Fitchburg, MA 014201275590473
Common questions
What is Sanjay Basu, MD's NPI number?
Sanjay Basu, MD's National Provider Identifier (NPI) is 1285682450, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sanjay Basu, MD located?
The NPPES record lists a practice address at 200 Groton RD, Ayer, MA, 01432. Phone: (978) 784-9000. Providers update this record themselves, so call before visiting.
How can I verify Sanjay Basu, MD's license?
NPPES lists Massachusetts license number 227832, 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 Sanjay Basu, MD prescribe under Medicare Part D?
In 2024, Sanjay Basu, MD had 4,737 Medicare Part D claims for 312 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.