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

Harry Walen, MD

Individual provider Internal Medicine Physician · NPI 1104992429

Harry Walen, MD is an Internal Medicine Physician in Baltimore, Maryland. Licensed in Maryland. Registered with an NPI since 2006.

Licensed in
MD
In the registry since
2006
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

2700 Quarry Lake Dr Ste 200
Baltimore, MD 21209-3744
Phone: (410) 415-5806
Fax: (410) 415-6620
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0010718 (MD)

Record details

NPI number1104992429
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 28, 2006
Last updated in NPPESMay 6, 2010
Mailing address2700 Quarry Lake Dr, Suite 200, Baltimore, MD 21209-3744

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