Rachel Seneca, RD,LDN
Rachel Seneca, RD,LDN is a Registered Dietitian in Harrisburg, PA, registered under NPI 1003262726. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Harrisburg, based on OpenStreetMap data collected Sep 14, 2026. Parking is available about 0.47 mi away at Locust Street Garage. The nearest transit stop is 0.49 mi away, served by City Island (South Side Shelter). A pharmacy sits 0.35 mi from the entrance (Rite Aid), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.39 mi away.
Getting here and what is nearby
Hotel Hotel Hanna 776 ft ~3 min
Parking UPMC Southgate Professional Building Parking Lot (Visitors & Staff Only) 1,017 ft ~4 min
409 South 2nd Street, Harrisburg
Parking Market Square Parking Garage 0.21 mi ~5 min
Restaurant Los Tres Cubanos 0.21 mi ~5 min
540 Race Street, Harrisburg
Mo-Th 16:00-21:00; Fr,Sa 16:00-22:00
Hotel Crowne Plaza Harrisburg-Hershey 0.23 mi ~5 min
Coffee Denim Coffee 0.25 mi ~5 min
17 South 2nd Street, Harrisburg 17101-2006
Transit 0.28 mi ~6 min
Restaurant El Sol 0.29 mi ~6 min
18 South 3rd Street, Harrisburg 17101
Mo 09:00-22:00; Tu-Th 11:00-22:00; Fr 11:00-23:00; Sa 14:00-23:00
Transit FlixBus Harrisburg 0.32 mi ~7 min
Restaurant Downtown Deli & Eatery 0.32 mi ~7 min
Hotel Hilton Harrisburg 0.33 mi ~7 min
Pharmacy Rite Aid 0.35 mi ~8 min
Coffee Denim Coffee 0.37 mi ~8 min
320 Market Street, Harrisburg 17101
Convenience Market on Market 0.37 mi ~8 min
322 Market Street, Harrisburg 17101
Coffee Anna Rose Bakery & Coffee Shop 0.39 mi ~8 min
100 North 2nd Street, Harrisburg 17101
Mo-Fr 07:00-17:00
Parking Locust Street Garage 0.47 mi ~10 min
Transit City Island (South Side Shelter) 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 |
|---|---|---|
| DN005602 | PA | Registered Dietitian primary |
| DN005602 | PA | Nutritionist |
This provider holds licence DN005602 issued in PA. 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 | |
|---|---|---|---|---|
| 133V00000X | Registered Dietitian | DN005602 | PA | primary |
| 133N00000X | Nutritionist | DN005602 | PA |
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 | 1003262726 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 12, 2016 |
| Last updated | Jan 24, 2018 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | RD,LDN |
| Practice address |
101 WASHINGTON ST LEARNING INSTITUTE Harrisburg, PA 17104 (717) 221-6258 Fax (717) 221-6266 |
| Mailing address |
409 S 2ND ST 2F Harrisburg, PA 17104 |
| Other names |
Rachel Ulp Former Legal Business Name |
| Other identifiers |
103124677
· Medicaid (PA) |
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 | 2 | 6 | 2 | 7 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 6 | 4 | 7 | 4 |
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.