Martha Johnson, RN, APN.CNS, IBCLC
NPI 1538370994 · Lactation Consultant (Registered Nurse) · Chicago, IL
Martha Johnson, RN, APN.CNS, IBCLC is a Lactation Consultant (Registered Nurse) provider in Chicago, IL (NPI 1538370994).
Provider details
- NPI number
- 1538370994
- Entity type
- Individual
- Primary specialty
- Lactation Consultant (Registered Nurse)Nursing Service Providers
- Credential
- RN, APN.CNS, IBCLC
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2209-005707 (IL)
Specialties & taxonomies
Nursing Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-05-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Martha Johnson's NPI number?
- Martha Johnson's National Provider Identifier (NPI) is 1538370994, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Johnson's specialty?
- Martha Johnson is listed in the NPPES registry with a primary specialty of Lactation Consultant (Registered Nurse) (Nursing Service Providers).
- Where is Martha Johnson located?
- Martha Johnson's practice location on file with NPPES is 4138 N Harding Ave, Chicago, IL 60618-1943.
- What is Martha Johnson's phone number?
- The practice phone number listed in the NPPES registry for Martha Johnson is (773) 267-0816.
- Is Martha Johnson's NPI active?
- Yes — Martha Johnson's NPI (1538370994) 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.