Douglas Harr, M.D.
NPI 1538466073 · Internal Medicine Physician · Quakertown, PA
Douglas Harr, M.D. is a Internal Medicine Physician provider in Quakertown, PA (NPI 1538466073).
Provider details
- NPI number
- 1538466073
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD015556E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
Mailing address
Registry dates
- Enumerated
- 2011-02-18
- Last updated
- 2011-02-18
Frequently asked questions
- What is Douglas Harr's NPI number?
- Douglas Harr's National Provider Identifier (NPI) is 1538466073, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Harr's specialty?
- Douglas Harr is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Harr located?
- Douglas Harr's practice location on file with NPPES is 2305 Mill Hill Rd, Quakertown, PA 18951-3904.
- What is Douglas Harr's phone number?
- The practice phone number listed in the NPPES registry for Douglas Harr is (215) 536-2711.
- Is Douglas Harr's NPI active?
- Yes — Douglas Harr's NPI (1538466073) is active in the NPPES registry as of the last update on 2011-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.