Maryann Hagberg, RD,CDN
Maryann Hagberg, RD,CDN is a provider specialising in Dietary Manager in Derby, CT, registered under NPI 1851573687. 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 130 DIVISION ST, Derby, CT 06418. 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 |
|---|---|---|
| 000814 | CT | Dietary Manager primary |
| 000814 | CT | Registered Dietitian |
This provider holds licence 000814 issued in CT. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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.
What Dietary Manager covers
A dietary manager is a trained food services professional who is charged with maintaining cost/profit objectives, purchasing foods and services for the department and supervising staff.. Dietary managers are trained to understand the basic nutritional needs of clients and work in partnership with dietitians, who offer specialized nutritional expertise. The CDM certified dietary manager designation is an advanced professional credential awarded to dietary managers who have completed specific course work, have passed the national credentialing exams (including a sanitation and safety exam) and have applied for certification. NUCC Health Care Provider Taxonomy, code 132700000X
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 | |
|---|---|---|---|---|
| 132700000X | Dietary Manager | 000814 | CT | primary |
| 133V00000X | Registered Dietitian | 000814 | CT |
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 | 1851573687 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 4, 2007 |
| Last updated | Sep 17, 2008 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | RD,CDN |
| Practice address |
130 DIVISION ST Derby, CT 06418 (203) 732-7585 |
| Mailing address |
106 SABAL DR Waterbury, CT 06708 |
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 | 5 | 1 | 5 | 7 | 3 | 6 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 1 | 1 | 1 | 7 | 6 | 6 | 7 |
Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7
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.