Margaret Baran
Internal Medicine Physician · Darien, CT
Margaret Baran is an internal medicine physician with a practice address in Darien, Connecticut, and NPI 1285623843, issued on Oct 17, 2005. Check the license (Connecticut 69231, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Margaret Baran
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 69231 CT
2114601 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Post RD Ste 100, Darien, CT 06820
- Phone
- (203) 655-8749
- Enumerated
- Oct 17, 2005
- Record last updated
- Oct 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (203) 655-0701
- Medicaid ID
- 02094580 NY
- Medicare enrollment
- Enrolled (PECOS I20210902003046); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1500 Post RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karthik GunachelvanInternal Medicine Physician1740604941
Verify Margaret Baran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 69231Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,715 Medicare Part D claims for 249 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium172 claims
- Levothyroxine Sodium107 claims
- Amlodipine Besylate83 claims
- Lisinopril69 claims
- Rosuvastatin Calcium61 claims
- Metoprolol Succinate58 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Stamford Health Medical Group IncDarien, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
15 internal medicine physician records list a practice address in Darien
They are 15 of the 380 NPPES records with a practice address in Darien, and 2,623 internal medicine physician records in Connecticut.
All 15 in Darien → All 2,623 in Connecticut → Every provider in Darien →
Other internal medicine physician records in Connecticut
- Hoda Abdel Salam, M.D.New Britain, CT1144509316
- Gada Abdelhafiz, MDNew London, CT1467649558
- Racha Abi Melhem, MDDerby, CT1902471352
- Gerard Abidor, D.O.Bridgeport, CT1518014539
- Lilyan AbrahamFarmington, CT1447693254
- Richard Abraham, M.D.Canton, CT1023044252
- Odaliz Abreu-Lanfranco, MDNew Haven, CT1538276134
- Kenneth Abriola, MDGlastonbury, CT1083693022
- Florentino Abueg, MDSouthbury, CT1649372558
- Nila Aburto, MDStamford, CT1396325718
Common questions
What is Margaret Baran's NPI number?
Margaret Baran's National Provider Identifier (NPI) is 1285623843, issued on Oct 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Baran located?
The NPPES record lists a practice address at 1500 Post RD Ste 100, Darien, CT, 06820. Phone: (203) 655-8749. Providers update this record themselves, so call before visiting.
How can I verify Margaret Baran's license?
NPPES lists Connecticut license number 69231, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Margaret Baran prescribe under Medicare Part D?
In 2024, Margaret Baran had 1,715 Medicare Part D claims for 249 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.