Smitha S. Iyer, M.D.
Internal Medicine Physician · Springfield, MA
Smitha S. Iyer, M.D. is an internal medicine physician with a practice address in Springfield, Massachusetts, and NPI 1609072958, issued on Jun 25, 2007. Check the license (Massachusetts 240100, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Smitha S. Iyer
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 240100 MA
Self-reported in NPPES; status is on the state search - Practice location
- 3400 Main St, Springfield, MA 01107
- Phone
- (413) 794-8777
- Enumerated
- Jun 25, 2007
- Record last updated
- May 20, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (413) 794-8226
- Medicare enrollment
- Enrolled (PECOS I20090715000228); 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 3400 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sunders Dorcely, ARNPFamily Nurse Practitioner1104333962
Verify Smitha S. Iyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 240100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% more Medicare Part D claims than the average internal medicine physician in 2024
5,571 Medicare Part D claims for 447 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 360 claims were for opioids.
Most prescribed
- Atorvastatin Calcium310 claims
- Omeprazole239 claims
- Amlodipine Besylate215 claims
- Lisinopril200 claims
- Levothyroxine Sodium190 claims
- Gabapentin185 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
- Baystate Medical Practices IncSpringfield, MA
- Select Rehabilitation, LLCGlenview, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Smitha S. Iyer among 6,825 internal medicine physician records in Massachusetts
Smitha S. Iyer, M.D. 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2003 · median 2004 among the 4,103 with a school on file
- Record last updated2016 · 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).
282 internal medicine physician records list a practice address in Springfield
They are 282 of the 8,553 NPPES records with a practice address in Springfield, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Springfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ronald Berger, MDSpringfield, MA 011071649263286
- Greta Boynton, M.D.Springfield, MA 011071801854773
- Elizabeth Eagleson, M.D.Springfield, MA 011071538139993
- John Egelhofer, MDSpringfield, MA 011071972595775
- David Fanti, MDSpringfield, MA 011071396737904
- Philip Gaziano, MDSpringfield, MA 011071043275001
- Howard Goldberg, M.D.Springfield, MA 011071457331050
- James Hession, MDSpringfield, MA 011071588656193
Common questions
What is Smitha S. Iyer, M.D.'s NPI number?
Smitha S. Iyer, M.D.'s National Provider Identifier (NPI) is 1609072958, issued on Jun 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Smitha S. Iyer, M.D. located?
The NPPES record lists a practice address at 3400 Main St, Springfield, MA, 01107. Phone: (413) 794-8777. Providers update this record themselves, so call before visiting.
How can I verify Smitha S. Iyer, M.D.'s license?
NPPES lists Massachusetts license number 240100, 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 Smitha S. Iyer, M.D. prescribe under Medicare Part D?
In 2024, Smitha S. Iyer, M.D. had 5,571 Medicare Part D claims for 447 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.