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Douglas Johnson, M.D.
NPI 1033100623 · Nephrology Physician · Allentown, PA
Douglas Johnson, M.D. is a Nephrology Physician provider in Allentown, PA (NPI 1033100623).
Provider details
- NPI number
- 1033100623
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD023199E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
1230 S Cedar Crest Blvd
Suite 301
Allentown, PA 18103-6212
Phone: (610) 432-4529
Fax: (610) 432-2206
Street-level locationGet directions
Mailing address
1230 S Cedar Crest Blvd
Allentown, PA 18103-6212
Registry dates
- Enumerated
- 2005-11-02
- Last updated
- 2008-02-20
Frequently asked questions
- What is Douglas Johnson's NPI number?
- Douglas Johnson's National Provider Identifier (NPI) is 1033100623, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Johnson's specialty?
- Douglas Johnson is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Johnson located?
- Douglas Johnson's practice location on file with NPPES is 1230 S Cedar Crest Blvd, Allentown, PA 18103-6212.
- What is Douglas Johnson's phone number?
- The practice phone number listed in the NPPES registry for Douglas Johnson is (610) 432-4529.
- Is Douglas Johnson's NPI active?
- Yes — Douglas Johnson's NPI (1033100623) is active in the NPPES registry as of the last update on 2008-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.