Thomas Marren, MD
NPI 1952309833 · Family Medicine Physician · Farmington, NM
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Marren, MD is a Family Medicine Physician provider in Farmington, NM (NPI 1952309833).
Provider details
- NPI number
- 1952309833
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301082611 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
1,710 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) |
|---|---|---|
| Anticoagulant Management of Patient Taking Warfarin93793 | 506 | $11 |
| X-Ray of Chest, 2 Views71046 | 217 | $20 |
| Screening Mammography77067 | 141 | $87 |
| Screening 3d Breast Mammography77063 | 140 | $23 |
| Blood Test, Clotting Time85610 | 74 | $4 |
| X-Ray of Foot, Minimum of 3 Views73630 | 58 | $22 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 142 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 591 | 171 |
| Amlodipine Besylate | 444 | 133 |
| Levothyroxine Sodium | 324 | 84 |
| Lisinopril | 300 | 83 |
| Omeprazole | 288 | 85 |
| Metoprolol Succinate | 285 | 85 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-13
- Last updated
- 2011-08-30
Frequently asked questions
- What is Thomas Marren's NPI number?
- Thomas Marren's National Provider Identifier (NPI) is 1952309833, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Marren's specialty?
- Thomas Marren is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Marren located?
- Thomas Marren's practice location on file with NPPES is 1001 W Broadway, Farmington, NM 87401-5638.
- What is Thomas Marren's phone number?
- The practice phone number listed in the NPPES registry for Thomas Marren is (505) 327-4796.
- Does Thomas Marren accept Medicare?
- Thomas Marren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Marren's NPI active?
- Yes — Thomas Marren's NPI (1952309833) is active in the NPPES registry as of the last update on 2011-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.