Margaret Cox, MD
NPI 1407010952 · Internal Medicine Physician · Fort Smith, AR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Cox, MD is a Internal Medicine Physician provider in Fort Smith, AR (NPI 1407010952).
Provider details
- NPI number
- 1407010952
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- E6114 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,662 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,095 | $115 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,093 | $9 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 560 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 226 | $81 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 152 | $117 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 177 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 891 | 262 |
| Levothyroxine Sodium | 605 | 163 |
| Omeprazole | 568 | 169 |
| Losartan Potassium | 534 | 156 |
| Amlodipine Besylate | 510 | 161 |
| Lisinopril | 492 | 145 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$97 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-14
- Last updated
- 2014-07-01
Frequently asked questions
- What is Margaret Cox's NPI number?
- Margaret Cox's National Provider Identifier (NPI) is 1407010952, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Cox's specialty?
- Margaret Cox is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Cox located?
- Margaret Cox's practice location on file with NPPES is 4107 Massard Rd, Fort Smith, AR 72903-6223.
- What is Margaret Cox's phone number?
- The practice phone number listed in the NPPES registry for Margaret Cox is (479) 314-4940.
- Does Margaret Cox accept Medicare?
- Margaret Cox is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Cox's NPI active?
- Yes — Margaret Cox's NPI (1407010952) is active in the NPPES registry as of the last update on 2014-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.