SMITHA S IYER M.D.
NPI 1609072958
Internal Medicine in Springfield, MA
About Smitha S Iyer M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SMITHA S IYER M.D. (NPI 1609072958) is an individual internal medicine provider in Springfield, Massachusetts, licensed in Massachusetts (240100) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS, is affiliated with Baystate Franklin Medical Center, and is a graduate of Other (2003).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Smitha S Iyer M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Smitha Iyer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, MA 01199
- Reassigned Medicare billing, Massachusetts enrollment
- 1,537 clinicians in this Medicare group
Springfield, MA 01104
- Reassigned Medicare billing, Massachusetts enrollment
- 168 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 8
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baystate Franklin Medical Center
Acute Care Hospitals · Greenfield, MAHolyoke Medical Center
Acute Care Hospitals · Holyoke, MABaystate Noble Hospital
Acute Care Hospitals · Westfield, MAMercy Medical Ctr
Acute Care Hospitals · Springfield, MABaystate Medical Center
Acute Care Hospitals · Springfield, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01107 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Smitha Iyer's NPI number?
The NPI number for Smitha Iyer is 1609072958. It was assigned to this individual provider in the NPPES registry on June 25, 2007.
Where is Smitha Iyer located?
Smitha Iyer practices at 3400 Main St, Springfield, MA 01107. The listed phone number is (413) 794-8777.
What is Smitha Iyer's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Smitha Iyer enrolled in Medicare?
Yes. Smitha Iyer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Smitha Iyer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Smitha Iyer reassigns Medicare benefits to 2 organizations: Baystate Medical Practices, Inc (Springfield, MA) and Mercy Inpatient Medical Associates Inc. (Springfield, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Smitha Iyer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Smitha Iyer accept?
Health plans from Taro Health list Smitha Iyer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Smitha Iyer affiliated with any hospitals?
According to CMS data, Smitha Iyer is affiliated with Baystate Franklin Medical Center, Holyoke Medical Center, Baystate Noble Hospital, Mercy Medical Ctr and Baystate Medical Center.
When was this NPI record last updated?
The NPPES record for Smitha Iyer was last updated on May 20, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Smitha S Iyer, M.D. · NPI 1609072958
Internal Medicine physician in Springfield, Massachusetts. Individual provider, active in the CMS NPPES registry since June 25, 2007.
## Identity
- **NPI:** 1609072958 (Entity type: Individual)
- **Enumerated:** June 25, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 240100 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 MAIN ST, Springfield, MA 01107-1113
- **Phone:** (413) 794-8777 · **Fax:** (413) 794-8226
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Baystate Medical Practices, Inc (NPI 1548205909, Springfield, MA); Mercy Inpatient Medical Associates Inc. (NPI 1407845282, Springfield, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** May 20, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1609072958) · Data from the CMS NPPES public registry.