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Harry Walen, M.D.
NPI 1104992429 · Internal Medicine Physician · Baltimore, MD
Harry Walen, M.D. is a Internal Medicine Physician provider in Baltimore, MD (NPI 1104992429).
Provider details
- NPI number
- 1104992429
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0010718 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
2700 Quarry Lake Dr
Suite 200
Baltimore, MD 21209-3744
Phone: (410) 415-5806
Fax: (410) 415-6620
Street-level locationGet directions
Mailing address
2700 Quarry Lake Dr
Baltimore, MD 21209-3744
Registry dates
- Enumerated
- 2006-11-28
- Last updated
- 2010-05-06
Frequently asked questions
- What is Harry Walen's NPI number?
- Harry Walen's National Provider Identifier (NPI) is 1104992429, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harry Walen's specialty?
- Harry Walen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harry Walen located?
- Harry Walen's practice location on file with NPPES is 2700 Quarry Lake Dr, Baltimore, MD 21209-3744.
- What is Harry Walen's phone number?
- The practice phone number listed in the NPPES registry for Harry Walen is (410) 415-5806.
- Is Harry Walen's NPI active?
- Yes — Harry Walen's NPI (1104992429) is active in the NPPES registry as of the last update on 2010-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.