Muriel Doyle, MS, RD/LD, CDCES
Muriel Doyle, MS, RD/LD, CDCES is a Metabolic Nutrition Registered Dietitian in Sugar Land, TX, registered under NPI 1700231610. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 16959 SOUTHWEST FWY STE 200, Sugar Land, TX 77479. 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 |
|---|---|---|
| DT83203 | TX | Metabolic Nutrition Registered Dietitian primary |
| DTR83203 | TX | Obesity and Weight Management Nutrition… |
| DTR83203 | TX | Renal Nutrition Registered Dietitian |
This provider holds licence DT83203 issued in TX. 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
- 9537441837
- Enrollment ID
- I20170420001985
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, Metabolic covers
A registered dietitian who achieves specialized competency in metabolic nutrition. NUCC Health Care Provider Taxonomy, code 133VN1006X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 133VN1006X | Metabolic Nutrition Registered Dietitian Nutrition, Metabolic | DT83203 | TX | primary |
| 133VN1201X | Obesity and Weight Management Nutrition Registered Dietitian Nutrition, Obesity and Weight Management | DTR83203 | TX | |
| 133VN1005X | Renal Nutrition Registered Dietitian Nutrition, Renal | DTR83203 | TX |
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 | 1700231610 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 28, 2016 |
| Last updated | May 11, 2022 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | MS, RD/LD, CDCES |
| Practice address |
16959 SOUTHWEST FWY STE 200 Sugar Land, TX 77479 (281) 603-4655 Fax (281) 990-6709 |
| Mailing address |
5323 BEVERLYHILL ST APT 27 Houston, TX 77056 |
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 | 7 | 0 | 0 | 2 | 3 | 1 | 6 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 0 | 0 | 4 | 3 | 2 | 6 | 2 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
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.