Margaret Tremwel, MD
NPI 1063409993 · Neurology Physician · Fayetteville, AR
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Tremwel, MD is a Neurology Physician provider in Fayetteville, AR (NPI 1063409993).
Provider details
- NPI number
- 1063409993
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- E3341 (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
20 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
552 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 | 176 | $115 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 116 | $82 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 104 | $199 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 65 | $71 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 34 | $163 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Memantine Hcl | 854 | 155 |
| Donepezil Hcl | 445 | 76 |
| Levetiracetam | 190 | 29 |
| Lamotrigine | 173 | 23 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 135 | 30 |
| Lacosamide | 104 | 11 |
| Topiramate | 62 | 12 |
| Oxcarbazepine | 58 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$218 across 10 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
- 2005-10-05
- Last updated
- 2016-03-02
Frequently asked questions
- What is Margaret Tremwel's NPI number?
- Margaret Tremwel's National Provider Identifier (NPI) is 1063409993, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Tremwel's specialty?
- Margaret Tremwel is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Tremwel located?
- Margaret Tremwel's practice location on file with NPPES is 3336 N Futrall Dr, Fayetteville, AR 72703-4057.
- What is Margaret Tremwel's phone number?
- The practice phone number listed in the NPPES registry for Margaret Tremwel is (479) 463-3000.
- Does Margaret Tremwel accept Medicare?
- Margaret Tremwel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Tremwel's NPI active?
- Yes — Margaret Tremwel's NPI (1063409993) is active in the NPPES registry as of the last update on 2016-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.