Margret Thorhallsdottir, M.D.
NPI 1124298831 · Family Medicine Physician · Saint Augustine, FL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margret Thorhallsdottir, M.D. is a Family Medicine Physician provider in Saint Augustine, FL (NPI 1124298831).
Provider details
- NPI number
- 1124298831
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- ME109067 (FL)
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
18 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
3,778 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 | 1,034 | $124 |
| 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 | 909 | $16 |
| Advance Care Planning, First 30 Minutes99497 | 364 | $80 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 353 | $88 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 316 | $125 |
| Injection of Drug Or Substance Under Skin Or Into Muscle |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 117 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 562 | 147 |
| Atorvastatin Calcium | 329 | 87 |
| Alprazolam | 238 | 51 |
| Rosuvastatin Calcium | 232 | 67 |
| Losartan Potassium | 188 | 53 |
| Lisinopril | 186 | 47 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$829 across 46 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
- 2008-03-10
- Last updated
- 2013-09-19
Frequently asked questions
- What is Margret Thorhallsdottir's NPI number?
- Margret Thorhallsdottir's National Provider Identifier (NPI) is 1124298831, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margret Thorhallsdottir's specialty?
- Margret Thorhallsdottir is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margret Thorhallsdottir located?
- Margret Thorhallsdottir's practice location on file with NPPES is 6573 A1a S, Saint Augustine, FL 32080-7504.
- What is Margret Thorhallsdottir's phone number?
- The practice phone number listed in the NPPES registry for Margret Thorhallsdottir is (904) 342-7363.
- Does Margret Thorhallsdottir accept Medicare?
- Margret Thorhallsdottir is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margret Thorhallsdottir's NPI active?
- Yes — Margret Thorhallsdottir's NPI (1124298831) is active in the NPPES registry as of the last update on 2013-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.