Mark Dwinell, M.D.
NPI 1639106099 · Internal Medicine Physician · Farmington, NM
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Dwinell, M.D. is a Internal Medicine Physician provider in Farmington, NM (NPI 1639106099).
Provider details
- NPI number
- 1639106099
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD2013-0979 (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
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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 102 | 38 |
| Amlodipine Besylate | 80 | 29 |
| Losartan Potassium | 65 | 26 |
| Lisinopril | 61 | 27 |
| Levothyroxine Sodium | 59 | 27 |
| Tamsulosin Hcl | 47 | 21 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-28
- Last updated
- 2015-04-28
Frequently asked questions
- What is Mark Dwinell's NPI number?
- Mark Dwinell's National Provider Identifier (NPI) is 1639106099, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Dwinell's specialty?
- Mark Dwinell is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Dwinell located?
- Mark Dwinell's practice location on file with NPPES is 407 S Schwartz Ave, Farmington, NM 87401-5925.
- What is Mark Dwinell's phone number?
- The practice phone number listed in the NPPES registry for Mark Dwinell is (505) 609-6730.
- Does Mark Dwinell accept Medicare?
- Mark Dwinell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Dwinell's NPI active?
- Yes — Mark Dwinell's NPI (1639106099) is active in the NPPES registry as of the last update on 2015-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.