Marilyn Willcoxon, CCC-SLP
NPI 1700098878 · Speech-Language Pathologist · Phoenix, AZ
Enrolled with Medicare as Practitioner - Qualified Speech Language Pathologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilyn Willcoxon, CCC-SLP is a Speech-Language Pathologist provider in Phoenix, AZ (NPI 1700098878).
Provider details
- NPI number
- 1700098878
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- CCC-SLP
- Sex
- Female
- Sole proprietor
- No
- License
- SLP1800 (AZ)
Specialties & taxonomies
Speech, Language and Hearing 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
2 documented practice locations
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
Additional practice locations (1)
- 108 W University DrMesa, AZ 85201-5818Phone: (480) 668-1917
Registry dates
- Enumerated
- 2007-05-03
- Last updated
- 2025-03-25
- Certified
- 2025-03-25
Frequently asked questions
- What is Marilyn Willcoxon's NPI number?
- Marilyn Willcoxon's National Provider Identifier (NPI) is 1700098878, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Willcoxon's specialty?
- Marilyn Willcoxon is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Marilyn Willcoxon located?
- Marilyn Willcoxon's practice location on file with NPPES is 2850 N 24th St, Phoenix, AZ 85008-1004.
- What is Marilyn Willcoxon's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Willcoxon is (602) 266-5976.
- Does Marilyn Willcoxon accept Medicare?
- Marilyn Willcoxon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marilyn Willcoxon's NPI active?
- Yes — Marilyn Willcoxon's NPI (1700098878) is active in the NPPES registry as of the last update on 2025-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.