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

Michael Alan Horberg, MD

Individual provider Internal Medicine Physician · NPI 1629157763

Michael Alan Horberg, MD is an Internal Medicine in Rockville, Maryland. Graduated from Boston University School of Medicine in 1985, 41 years ago. Practices with Kaiser Foundation Health Plan of the Mid Atlantic States, Inc, a 1,934-clinician group and accepts Medicare assignment. Licensed in California, District of Columbia, Maryland and Virginia.

Years since qualifying
41
Trained at
Boston University School of Medicine
Licensed in
CA, DC, MD, VA
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2101 E Jefferson St Regional Headquarters
Rockville, MD 20852-4908
Phone: (301) 816-2424
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 D0072684 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence 0101250271 (VA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD039528 (DC)
Internal Medicine Physician Taxonomy 207R00000X · Licence G83494 (CA)

Record details

NPI number1629157763
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 2, 2006
Last updated in NPPESMay 30, 2021
Certification dateMay 30, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolBOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1985 (41 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

Other providers in Rockville