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

Tammi Thomas Howard, MD

Individual provider Internal Medicine Physician · NPI 1114189560

Tammi Thomas Howard, MD is an Internal Medicine in Largo, Maryland. Graduated from Ohio State University College of Medicine in 2008, 18 years ago. Practices with Kaiser Foundation Health Plan of the Mid Atlantic States, Inc, a 1,934-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in District of Columbia, Maryland, Minnesota and Ohio.

Years since qualifying
18
Trained at
Ohio State University College of Medicine
Licensed in
DC, MD, MN, OH
In the registry since
2008
Specialties on file
4
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

1221 Mercantile Ln
Largo, MD 20774-5374
Phone: (301) 618-5500
Show map & directions

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

Additional practice locations (1)

  • 200 1st St Sw, Rochester, MN 55905-0001 — (507) 284-2511

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0097826 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD045398 (DC)
Internal Medicine Physician Taxonomy 207R00000X · Licence 35-097267 (OH)
Internal Medicine Physician Taxonomy 207R00000X · Licence D974006118320 (MN)

Record details

NPI number1114189560
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 26, 2008
Last updated in NPPESMarch 17, 2026
Certification dateMarch 17, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc — 1934 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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