Thomas Horst, MD
NPI 1871642082 · Family Medicine Physician · Ajo, AZ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Horst, MD is a Family Medicine Physician provider in Ajo, AZ (NPI 1871642082).
Provider details
- NPI number
- 1871642082
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00020253 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 28 | 13 |
| Lisinopril | 20 | 13 |
| Levothyroxine Sodium | 19 | — |
| Prednisone | 18 | 12 |
| Gabapentin | 18 | 12 |
| Oxycodone Hcl | 16 | — |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-09
- Last updated
- 2023-06-30
- Certified
- 2023-06-30
Frequently asked questions
- What is Thomas Horst's NPI number?
- Thomas Horst's National Provider Identifier (NPI) is 1871642082, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Horst's specialty?
- Thomas Horst is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Horst located?
- Thomas Horst's practice location on file with NPPES is 410 N Malacate St Ste 100, Ajo, AZ 85321-2254.
- What is Thomas Horst's phone number?
- The practice phone number listed in the NPPES registry for Thomas Horst is (520) 387-5651.
- Does Thomas Horst accept Medicare?
- Thomas Horst is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Horst's NPI active?
- Yes — Thomas Horst's NPI (1871642082) is active in the NPPES registry as of the last update on 2023-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.