Jacqueline Horst, M.D.
Jacqueline Horst, M.D. is a Pulmonary Disease Physician in Dallas, TX, registered under NPI 1003158254. This provider registers 3 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 Dallas, based on OpenStreetMap data collected Sep 3, 2026. Parking is available about 328 ft away at Pavilion II. A pharmacy sits 0.20 mi from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Restaurant Jimmy John's 236 ft ~1 min
Parking Emergency Parking 262 ft ~1 min
Parking 308 ft ~2 min
Parking Pavilion II 328 ft ~2 min
Pharmacy Walgreens 0.20 mi ~5 min
Restaurant Elephant Indian Bar & Grill 0.21 mi ~5 min
1115 North Beckley Avenue
Restaurant La Comida 0.23 mi ~5 min
1101 North Beckley Avenue, Dallas 75208
Convenience 7-Eleven 0.29 mi ~6 min
Gas station 7-Eleven 0.29 mi ~6 min
225 East Colorado Boulevard
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 |
|---|---|---|
| 036.140659 | IL | Internal Medicine Physician |
| S2342 | TX | Internal Medicine Physician |
| S2342 | TX | Critical Care Medicine (Internal… |
| S2342 | TX | Pulmonary Disease Physician primary |
Licences are recorded in 2 states: IL, TX. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Internal Medicine
- PAC ID
- 1557653912
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Illinois | I20170522001263 | Practitioner - Internal Medicine |
| Texas | I20190717003316 | Practitioner - Internal Medicine |
Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. There are 2 separate enrolment records across 2 states (IL, TX). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: Illinois and Texas. The practice address on file is in Dallas, TX, but a licence in another state usually means they see patients there too — either at a second location or 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
- S2342
- Specialty
- Internal Medicine Physician
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 Pulmonary Disease covers
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs. NUCC Health Care Provider Taxonomy, code 207RP1001X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | 036.140659 | IL | |
| 207R00000X | Internal Medicine Physician | S2342 | TX | |
| 207RC0200X | Critical Care Medicine (Internal Medicine) Physician Critical Care Medicine | S2342 | TX | |
| 207RP1001X | Pulmonary Disease Physician Pulmonary Disease | S2342 | TX | 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 | 1003158254 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 25, 2013 |
| Last updated | Aug 26, 2021 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | M.D. |
| Practice address |
221 W COLORADO BLVD STE 525 Dallas, TX 75208 (214) 960-5681 |
| Mailing address |
1650 W. HARRISON ST SUITE 466 ATRIUM Chicago, IL 60612 |
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 | 5 | 8 | 2 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 5 | 7 | 2 | 1 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.