Diana Hoang, RDN
Diana Hoang, RDN is a Registered Dietitian in Chicago, IL, registered under NPI 1003673856.
Getting there
Here is what surrounds this office in Chicago, based on OpenStreetMap data collected Sep 2, 2026. Parking is available about 916 ft away. The nearest transit stop is 463 ft away, served by Ogden & Washtenaw. If you arrive early, there is a coffee shop 363 ft away.
Getting here and what is nearby
Transit Ogden & Rockwell 144 ft ~1 min
Transit Ogden & Rockwell 231 ft ~1 min
Parking 331 ft ~2 min
Coffee Momentum Coffee 363 ft ~2 min
Restaurant Ja’Grill 441 ft ~2 min
1407 South Washtenaw Avenue, Chicago 60623
Transit Ogden & Washtenaw 463 ft ~2 min
Parking 653 ft ~3 min
Parking 916 ft ~4 min
2720-2750 West 15th Place
Restaurant EL Ideas 0.24 mi ~5 min
Convenience Mobil Mart 0.26 mi ~6 min
2401 West Ogden Avenue, Chicago 60608
Restaurant Burger King 0.27 mi ~6 min
2401 West Ogden Avenue, Chicago 60608
Mo-Fr 06:00-21:00; Sa 06:00-20:00; Su 07:00-20:00
Gas station Mobil 0.28 mi ~6 min
2401 West Ogden Avenue, Chicago 60608
Convenience Shell 0.33 mi ~7 min
2417 West Roosevelt Road, Chicago 60608
Gas station Shell 0.34 mi ~7 min
2401 West Roosevelt Road, Chicago 60608
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 164.009466 | IL | Registered Dietitian primary |
This provider holds licence 164.009466 issued in IL. 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 Dietitian, Registered covers
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation. NUCC Health Care Provider Taxonomy, code 133V00000X
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 | 1003673856 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 28, 2024 |
| Last updated | Feb 28, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | RDN |
| Practice address |
2653 W OGDEN AVE Chicago, IL 60608 (773) 257-6508 |
| Mailing address |
26374 WOODLINE CT Flat Rock, MI 48134 |
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 | 0 | 0 | 3 | 6 | 7 | 3 | 8 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 7 | 6 | 8 | 1 |
Sum = 54 · next multiple of 10 = 60 · 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.