Rex Wortham, M.D.
NPI 1679580492 · Family Medicine Physician · Preston, ID
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rex Wortham, M.D. is a Family Medicine Physician provider in Preston, ID (NPI 1679580492).
Provider details
- NPI number
- 1679580492
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- M-7249 (ID)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
818 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 167 | $88 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 119 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 117 | $125 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 95 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 89 | $10 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 26 | 11 |
| Amlodipine Besylate | 23 | 12 |
| Gabapentin | 22 | 13 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 22 | 11 |
| Levothyroxine Sodium | 21 | — |
| Lisinopril | 21 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Rex Wortham's NPI number?
- Rex Wortham's National Provider Identifier (NPI) is 1679580492, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rex Wortham's specialty?
- Rex Wortham is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rex Wortham located?
- Rex Wortham's practice location on file with NPPES is 8 S 1st W, Preston, ID 83263-1244.
- What is Rex Wortham's phone number?
- The practice phone number listed in the NPPES registry for Rex Wortham is (208) 852-0852.
- Does Rex Wortham accept Medicare?
- Rex Wortham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rex Wortham's NPI active?
- Yes — Rex Wortham's NPI (1679580492) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.