Colleen Dempsey-Rex, RD, LDN
NPI 1538309463 · Registered Dietitian · Allentown, PA
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colleen Dempsey-Rex, RD, LDN is a Registered Dietitian provider in Allentown, PA (NPI 1538309463).
Provider details
- NPI number
- 1538309463
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD, LDN
- Sex
- Female
- Sole proprietor
- No
- License
- DN003567 (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
17 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
- 2009-03-05
- Last updated
- 2014-06-18
Frequently asked questions
- What is Colleen Dempsey-Rex's NPI number?
- Colleen Dempsey-Rex's National Provider Identifier (NPI) is 1538309463, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Dempsey-Rex's specialty?
- Colleen Dempsey-Rex is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Colleen Dempsey-Rex located?
- Colleen Dempsey-Rex's practice location on file with NPPES is 1247 S Cedar Crest Blvd, Allentown, PA 18103-6298.
- What is Colleen Dempsey-Rex's phone number?
- The practice phone number listed in the NPPES registry for Colleen Dempsey-Rex is (610) 770-1800.
- Does Colleen Dempsey-Rex accept Medicare?
- Colleen Dempsey-Rex is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colleen Dempsey-Rex's NPI active?
- Yes — Colleen Dempsey-Rex's NPI (1538309463) is active in the NPPES registry as of the last update on 2014-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.