Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Matthew Adam Niemi, MD

Individual provider Nephrology Physician · NPI 1053548321

Matthew Adam Niemi, MD is a Nephrology in Worcester, Massachusetts. Graduated from Tufts University School of Medicine in 2009, 17 years ago. Practices with Umass Memorial Medical Group Inc, a 2,467-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
17
Trained at
Tufts University School of Medicine
Licensed in
MA
In the registry since
2009
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

55 Lake Ave N Dept OF Nephrology
Worcester, MA 01655-0002
Phone: (508) 856-3155
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 157 Union St, Marlborough, MA 01752-1228 — (508) 856-3155

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 251074 (MA)

Record details

NPI number1053548321
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 15, 2009
Last updated in NPPESOctober 27, 2020
Certification dateOctober 27, 2020

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Umass Memorial Medical Group Inc — 2467 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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