Colleen Gerg, RDN
NPI 1437642238 · Registered Dietitian · Bryn Mawr, PA
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colleen Gerg, RDN is a Registered Dietitian provider in Bryn Mawr, PA (NPI 1437642238).
Provider details
- NPI number
- 1437642238
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN
- Sex
- Female
- Sole proprietor
- Yes
- License
- DN004713 (PA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
75 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Therapy Procedure Reassessment for Nutrition Management, Each 15 Minutes97803 | 75 | $24 |
Typical Medicare-allowed amounts for these services range $24–$24 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-06-07
- Last updated
- 2020-01-30
- Certified
- 2020-01-30
Frequently asked questions
- What is Colleen Gerg's NPI number?
- Colleen Gerg's National Provider Identifier (NPI) is 1437642238, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Gerg's specialty?
- Colleen Gerg is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Colleen Gerg located?
- Colleen Gerg's practice location on file with NPPES is 800 Lafayette Rd, Bryn Mawr, PA 19010-1817.
- What is Colleen Gerg's phone number?
- The practice phone number listed in the NPPES registry for Colleen Gerg is (202) 497-4202.
- Does Colleen Gerg accept Medicare?
- Colleen Gerg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colleen Gerg's NPI active?
- Yes — Colleen Gerg's NPI (1437642238) is active in the NPPES registry as of the last update on 2020-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.