Mark Van Wormer, MD
NPI 1013919034 · General Practice Physician · Clayton, NM
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Van Wormer, MD is a General Practice Physician provider in Clayton, NM (NPI 1013919034).
Provider details
- NPI number
- 1013919034
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 81333 (NM)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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 · 152 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Potassium Chloride | 429 | 74 |
| Lisinopril | 351 | 53 |
| Levothyroxine Sodium | 349 | 49 |
| Apixabanbrand: Eliquis | 322 | 38 |
| Omeprazole | 234 | 48 |
| Atorvastatin Calcium | 233 | 45 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-10
- Last updated
- 2009-07-15
Frequently asked questions
- What is Mark Van Wormer's NPI number?
- Mark Van Wormer's National Provider Identifier (NPI) is 1013919034, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Van Wormer's specialty?
- Mark Van Wormer is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Van Wormer located?
- Mark Van Wormer's practice location on file with NPPES is 314 N 3rd Ave, Clayton, NM 88415-3302.
- What is Mark Van Wormer's phone number?
- The practice phone number listed in the NPPES registry for Mark Van Wormer is (575) 374-8313.
- Does Mark Van Wormer accept Medicare?
- Mark Van Wormer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Van Wormer's NPI active?
- Yes — Mark Van Wormer's NPI (1013919034) is active in the NPPES registry as of the last update on 2009-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.