Heather Sullivan, R.D.
Heather Sullivan, R.D. is a Registered Dietitian in Chicago, IL, registered under NPI 1003123035. 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
Here is what surrounds this office in Chicago, based on OpenStreetMap data collected Sep 6, 2026. Parking is available about 0.38 mi away. There is EV charging 0.43 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 968 ft away, served by North Ave & Cleveland. A pharmacy sits 0.49 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.45 mi away.
Getting here and what is nearby
Transit North Ave & Larrabee 795 ft ~4 min
Transit North Ave & Larrabee 848 ft ~4 min
Convenience Creative Mini Market 820 ft ~4 min
701 West Willow Street, Chicago 60614
Transit North Ave & Cleveland 968 ft ~4 min
Restaurant Kababish 997 ft ~4 min
1548 North Larrabee Street, Chicago 60610
Restaurant Al Halal Zaiqa 0.21 mi ~5 min
449 West North Avenue, Chicago 60610
Restaurant Twin Anchors Restaurant & Tavern 0.25 mi ~5 min
1655 North Sedgwick Street, Chicago 60614
Mo-Tu 17:00-22:30; We-Th 17:00-23:00; Fr 17:00-00:00; Sa 12:00-00:00; Su 12:00-22:30
Convenience Stop and Shop 0.30 mi ~6 min
Parking Steppenwolf Garage 0.30 mi ~6 min
1624-1632 North Halsted Street, Chicago 60614
Parking 0.30 mi ~6 min
730-742 West Weed Street
Parking 0.38 mi ~8 min
230 West North Avenue, Chicago 60614
Coffee Kapéj Coffee 0.39 mi ~8 min
1447 North Sedgwick Street, Chicago 60610
Sa, Su 07:30-15:30; Tu-Fr 07:00-15:30
Grocery Mariano's Fresh Market 0.39 mi ~8 min
Convenience Green Apple Mini Mart 0.40 mi ~9 min
1435 North Sedgewick Street, Chicago 60610
Coffee Sweetwaters Coffee & Tea 0.41 mi ~9 min
EV charging Tesla Supercharger 0.43 mi ~9 min
Coffee Starbucks 0.45 mi ~9 min
Hotel Hotel Lincoln 0.47 mi ~10 min
Pharmacy Walgreens 0.48 mi ~10 min
Pharmacy Walgreens 0.49 mi ~10 min
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 |
|---|---|---|
| 969683 | IL | Nutritionist |
| 969683 | IL | Registered Dietitian primary |
This provider holds licence 969683 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
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 | |
|---|---|---|---|---|
| 133N00000X | Nutritionist | 969683 | IL | |
| 133V00000X | Registered Dietitian | 969683 | IL | primary |
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 | 1003123035 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 13, 2010 |
| Last updated | Sep 13, 2010 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | R.D. |
| Practice address |
1711 N LARRABEE ST 2 Chicago, IL 60614 (773) 259-4809 |
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 | 1 | 2 | 3 | 0 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 2 | 6 | 0 | 6 |
Sum = 45 · next multiple of 10 = 50 · check digit = 5 · actual last digit = 5
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.