IndividualActive
Marjorie Johnson, D.C., PH.D.
NPI 1871639120 · Chiropractor · Davenport, IA
Marjorie Johnson, D.C., PH.D. is a Chiropractor provider in Davenport, IA (NPI 1871639120).
Provider details
- NPI number
- 1871639120
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C., PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 03033 (IA)
Specialties & taxonomies
Chiropractic Providers
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
1000 Brady St
Davenport, IA 52803-5214
Phone: (563) 884-5744
Fax: (563) 884-5897
Street-level locationGet directions
Mailing address
28012 230th St
Leclaire, IA 52753-9177
Registry dates
- Enumerated
- 2007-01-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marjorie Johnson's NPI number?
- Marjorie Johnson's National Provider Identifier (NPI) is 1871639120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marjorie Johnson's specialty?
- Marjorie Johnson is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is Marjorie Johnson located?
- Marjorie Johnson's practice location on file with NPPES is 1000 Brady St, Davenport, IA 52803-5214.
- What is Marjorie Johnson's phone number?
- The practice phone number listed in the NPPES registry for Marjorie Johnson is (563) 884-5744.
- Is Marjorie Johnson's NPI active?
- Yes — Marjorie Johnson's NPI (1871639120) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.