Walker Porterfield, DC
NPI 1336884717 · Chiropractor · Johnston, IA
Enrolled with Medicare as Practitioner - Chiropractic · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Walker Porterfield, DC is a Chiropractor provider in Johnston, IA (NPI 1336884717).
Provider details
- NPI number
- 1336884717
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- DC
- Sex
- Male
- Sole proprietor
- No
- License
- 109680 (IA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
- 2022-05-01
- Last updated
- 2022-06-21
- Certified
- 2022-05-02
Frequently asked questions
- What is Walker Porterfield's NPI number?
- Walker Porterfield's National Provider Identifier (NPI) is 1336884717, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walker Porterfield's specialty?
- Walker Porterfield is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is Walker Porterfield located?
- Walker Porterfield's practice location on file with NPPES is 5525 Merle Hay Rd Ste 165, Johnston, IA 50131-1446.
- What is Walker Porterfield's phone number?
- The practice phone number listed in the NPPES registry for Walker Porterfield is (515) 212-5715.
- Does Walker Porterfield accept Medicare?
- Walker Porterfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Walker Porterfield's NPI active?
- Yes — Walker Porterfield's NPI (1336884717) is active in the NPPES registry as of the last update on 2022-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.