Margaret Baran
NPI 1285623843 · Internal Medicine Physician · Darien, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Baran is a Internal Medicine Physician provider in Darien, CT (NPI 1285623843).
Provider details
- NPI number
- 1285623843
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 2114601 (NY)
Specialties & taxonomies
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
870 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 329 | $134 |
| 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 | 172 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 100 | $135 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 53 | $15 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 52 | $188 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 172 | 47 |
| Levothyroxine Sodium | 107 | 23 |
| Amlodipine Besylate | 83 | 26 |
| Lisinopril | 69 | 22 |
| Rosuvastatin Calcium | 61 | 20 |
| Omeprazole | 58 | 14 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-17
- Last updated
- 2021-10-12
- Certified
- 2021-10-12
Frequently asked questions
- What is Margaret Baran's NPI number?
- Margaret Baran's National Provider Identifier (NPI) is 1285623843, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Baran's specialty?
- Margaret Baran is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Baran located?
- Margaret Baran's practice location on file with NPPES is 1500 Post Rd Ste 100, Darien, CT 06820-5936.
- What is Margaret Baran's phone number?
- The practice phone number listed in the NPPES registry for Margaret Baran is (203) 655-8749.
- Does Margaret Baran accept Medicare?
- Margaret Baran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Baran's NPI active?
- Yes — Margaret Baran's NPI (1285623843) is active in the NPPES registry as of the last update on 2021-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.