Mallory Flager, RDN
NPI 1831890979 · Registered Dietitian · Philadelphia, PA
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mallory Flager, RDN is a Registered Dietitian provider in Philadelphia, PA (NPI 1831890979).
Provider details
- NPI number
- 1831890979
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN
- Sex
- Female
- Sole proprietor
- No
- License
- DN004683 (PA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
- 2023-03-15
- Last updated
- 2023-03-15
- Certified
- 2023-03-15
Frequently asked questions
- What is Mallory Flager's NPI number?
- Mallory Flager's National Provider Identifier (NPI) is 1831890979, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mallory Flager's specialty?
- Mallory Flager is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Mallory Flager located?
- Mallory Flager's practice location on file with NPPES is 833 Chestnut St Fl 1, Philadelphia, PA 19107-4404.
- What is Mallory Flager's phone number?
- The practice phone number listed in the NPPES registry for Mallory Flager is (215) 932-6165.
- Does Mallory Flager accept Medicare?
- Mallory Flager is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mallory Flager's NPI active?
- Yes — Mallory Flager's NPI (1831890979) is active in the NPPES registry as of the last update on 2023-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.