Elizabeth Toolan, RD
Elizabeth Toolan, RD is a Pediatric Nutrition Registered Dietitian in Saint Louis, MO, registered under NPI 1801333018. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 1 CHILDRENS PL DIV PED GENETICS AND GENOMIC MED, Saint Louis, MO 63110. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 2010010774 | MO | Pediatric Nutrition Registered Dietitian primary |
| 2010010774 | MO | Registered Dietitian |
This provider holds licence 2010010774 issued in MO. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Registered Dietitian Or Nutrition Professional
- PAC ID
- 8729502349
- Enrollment ID
- I20250404001367
Medicare enrolment is recorded as approved under the provider type Practitioner - Registered Dietitian Or Nutrition Professional. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Nutrition, Pediatric covers
An individual who is a Board Certified Specialist in Pediatric Nutrition and applies evidence-based nutrition knowledge in providing medical nutrition therapy for pediatric patients. Specialists work directly with healthy and/or ill children (newborn up to 21 years of age) as well as children with special health care needs in a variety of settings (hospitals, community-based and/or family-centered programs, education programs, home, etc.), OR indirectly through management, care coordination, education, quality improvement, or research practice linked specifically to pediatric nutrition. NUCC Health Care Provider Taxonomy, code 133VN1004X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 133VN1004X | Pediatric Nutrition Registered Dietitian Nutrition, Pediatric | 2010010774 | MO | primary |
| 133V00000X | Registered Dietitian | 2010010774 | MO |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1801333018 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 25, 2017 |
| Last updated | Apr 17, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | RD |
| Practice address |
1 CHILDRENS PL DIV PED GENETICS AND GENOMIC MED Saint Louis, MO 63110 (314) 454-6093 Fax (844) 965-9624 |
| Mailing address |
PO BOX 7412011 Chicago, IL 60674 |
| Other identifiers |
350122288
· Medicaid (MO) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 8 | 0 | 1 | 3 | 3 | 3 | 0 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 0 | 1 | 6 | 3 | 6 | 0 | 2 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.