IndividualActive
Mariah Mazzaferri, MS, RD, CD
NPI 1659856755 · Registered Dietitian · Seattle, WA
Mariah Mazzaferri, MS, RD, CD is a Registered Dietitian provider in Seattle, WA (NPI 1659856755).
Provider details
- NPI number
- 1659856755
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- MS, RD, CD
- Sex
- Female
- Sole proprietor
- No
- License
- 60872390 (WA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(67/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
4800 Sand Point Way Ne
Seattle, WA 98105-3901
Phone: (206) 987-2000
Street-level locationGet directions
Mailing address
4800 Sand Point Way Ne
Seattle, WA 98105-3901
Registry dates
- Enumerated
- 2018-09-25
- Last updated
- 2024-10-09
- Certified
- 2024-10-09
Frequently asked questions
- What is Mariah Mazzaferri's NPI number?
- Mariah Mazzaferri's National Provider Identifier (NPI) is 1659856755, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariah Mazzaferri's specialty?
- Mariah Mazzaferri is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Mariah Mazzaferri located?
- Mariah Mazzaferri's practice location on file with NPPES is 4800 Sand Point Way Ne, Seattle, WA 98105-3901.
- What is Mariah Mazzaferri's phone number?
- The practice phone number listed in the NPPES registry for Mariah Mazzaferri is (206) 987-2000.
- Is Mariah Mazzaferri's NPI active?
- Yes — Mariah Mazzaferri's NPI (1659856755) is active in the NPPES registry as of the last update on 2024-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.