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

Timothy M Niessen, MD, MPH

Individual provider Internal Medicine Physician · NPI 1730322900

Timothy M Niessen, MD, MPH is an Internal Medicine in Baltimore, Maryland. Graduated from Johns Hopkins University School of Medicine in 2009, 17 years ago. Practices with Johns Hopkins University, a 705-clinician group. Licensed in Maryland.

Years since qualifying
17
Trained at
Johns Hopkins University School of Medicine
Licensed in
MD
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MPH — Master of Public Health
A graduate degree in population health.

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Practice location Address checks out

600 N Wolfe St Nelson 215
Baltimore, MD 21287-0001
Phone: (443) 287-4362
Fax: (410) 502-0923
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0074245 (MD)

Record details

NPI number1730322900
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MPH
Sole proprietorYes
NPI enumeratedApril 16, 2009
Last updated in NPPESMarch 11, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Johns Hopkins University — 705 clinicians
Accepts Medicare assignment Not indicated
Practice locations3 on file with Medicare

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