Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dhanalakshmi S Namasivayam, MD

Individual provider Internal Medicine Physician · NPI 1316142110

Dhanalakshmi S Namasivayam, MD practises Internal Medicine in Madison, Wisconsin. Qualified in 1990, 36 years ago. Practices with Meriter Hospital Inc, a 123-clinician group and accepts Medicare assignment. Licensed in Illinois and Wisconsin.

Years since qualifying
36
Licensed in
IL, WI
In the registry since
2007
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

202 So Park St
Madison, WI 53715 Not confirmed with CMS for 13 years — call before visiting
Phone: (608) 417-6103
Fax: (608) 417-5934
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 50690-20 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036-114703 (IL)
Hospitalist Physician Taxonomy 208M00000X · Licence 50690-20 (WI)

Record details

NPI number1316142110
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 20, 2007
Last updated in NPPESFebruary 11, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Meriter Hospital Inc — 123 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients139
Services billed 315 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Meriter Hospital Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 123 clinicians in the practice; 12 are shown here.

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