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

Dr. Lenar Tatios Yessayan, MD

Individual provider Internal Medicine Physician · NPI 1023210861

Dr. Lenar Tatios Yessayan, MD is a Nephrology in Ann Arbor, Michigan. Qualified in 2001, 25 years ago. Practices with Regents of the University of Michigan, a 3,271-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
25
Licensed in
MI
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

2850 S Industrial Hwy
Ann Arbor, MI 48104-6796
Phone: (734) 677-1490
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 4301082653 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 4301082653 (MI)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 4301082653 (MI)

Record details

NPI number1023210861
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 4, 2007
Last updated in NPPESJanuary 14, 2026
Certification dateJanuary 14, 2026

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Regents Of The University Of Michigan — 3271 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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