Yvonne Matthews, MS, CNS, LDN, BCHN
Yvonne Matthews, MS, CNS, LDN, BCHN is a provider specialising in Nutritionist in Denver, CO, registered under NPI 1598464976. This provider registers 2 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 1801 BROADWAY STE 511, Denver, CO 80202. 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 |
|---|---|---|
| NU000023 | NC | Nutrition Education Nutritionist |
| NU200000247 | DC | Nutrition Education Nutritionist |
| 164.023548 | IL | Nutrition Education Nutritionist |
| 14949 | FL | Nutrition Education Nutritionist |
| DX6429 | MD | Nutrition Education Nutritionist |
Licences are recorded in 5 states: NC, DC, IL, FL, MD. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
Licensed in 5 states
This provider holds licences in 5 states: District of Columbia, Florida, Illinois, Maryland and North Carolina. Multi-state licensure often means the provider works near a state border, covers more than one office, or delivers care by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- NU200000247
- Specialty
- Nutrition Education Nutritionist
- Licence
- NU000023
- Specialty
- Nutrition Education Nutritionist
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Nutritionist covers
A specialist in adapting and applying food and nutrient knowledge to the solution of food and nutritional problems, the control of disease, and the promotion of health. Nutritionists perform research, instruct groups and individuals about nutritional requirements, and assist people in developing meal patterns that meet their nutritional needs; (2) A nutritionist is someone who has completed undergraduate and/or graduate training in the discipline of nutrition without necessarily meeting the academic and experience requirements to qualify for the Registered Dietitian designation. NUCC Health Care Provider Taxonomy, code 133N00000X
All registered taxonomy codes
This provider registers 6 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 133N00000X | Nutritionist | — | CO | primary |
| 133NN1002X | Nutrition Education Nutritionist Nutrition, Education | NU000023 | NC | |
| 133NN1002X | Nutrition Education Nutritionist Nutrition, Education | NU200000247 | DC | |
| 133NN1002X | Nutrition Education Nutritionist Nutrition, Education | 164.023548 | IL | |
| 133NN1002X | Nutrition Education Nutritionist Nutrition, Education | 14949 | FL | |
| 133NN1002X | Nutrition Education Nutritionist Nutrition, Education | DX6429 | MD |
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 | 1598464976 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 24, 2023 |
| Last updated | May 22, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | MS, CNS, LDN, BCHN |
| Practice address |
1801 BROADWAY STE 511 Denver, CO 80202 (760) 831-7107 |
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 | 5 | 9 | 8 | 4 | 6 | 4 | 9 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 9 | 8 | 8 | 6 | 8 | 9 | 5 |
Sum = 84 · next multiple of 10 = 90 · check digit = 6 · actual last digit = 6
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.