NPPES file of Aug 9, 2026

Aiswarya Anna Thomas, M.D.

Internal Medicine Physician · Danbury, CT

Aiswarya Anna Thomas, M.D. is an internal medicine physician with a practice address in Danbury, Connecticut, and NPI 1841584026, issued on Jun 5, 2011. Check the license (Connecticut 53397, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841584026
Name
Aiswarya Anna Thomas
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
53397 CT
Self-reported in NPPES; status is on the state search
Practice location
70 Main St, Danbury, CT 06810
Phone
(203) 791-5030
Enumerated
Jun 5, 2011
Record last updated
Aug 1, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140922000859); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 70 Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Suzanne Allen, DMDStudent in an Organized Health Care Education/Training Program1427998491
  2. Jillian BernsteinStudent in an Organized Health Care Education/Training Program1033745997
  3. Masooma Bhatti, D.M.DStudent in an Organized Health Care Education/Training Program1144489600
  4. Susan Cizek, MDInternal Medicine Physician1790895795
  5. William Delaney, MDInternal Medicine Physician1942387634
  6. Hilarie Galloway, DMDStudent in an Organized Health Care Education/Training Program1205147741

Verify Aiswarya Anna Thomas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 53397
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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92% fewer Medicare Part D claims than the average internal medicine physician in 2024

251 Medicare Part D claims for 84 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Aiswarya Thomas251
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium27 claims
  2. Amlodipine Besylate25 claims
  3. Hydrochlorothiazide13 claims
  4. Lisinopril11 claims
  5. Metformin Hcl11 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

  1. Connecticut Institute For Communities IncDanbury, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Aiswarya Anna Thomas among 2,623 internal medicine physician records in Connecticut

Aiswarya Anna Thomas, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 64% of them.

  • NPI issued2011 · 64% of these records are older, 33% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2011 · median 2004 among the 1,646 with a school on file
  • Record last updated2014 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

112 internal medicine physician records list a practice address in Danbury

They are 112 of the 2,412 NPPES records with a practice address in Danbury, and 2,623 internal medicine physician records in Connecticut.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Alka Aggarwal, MDDanbury, CT 068101427041987
  2. Charles Cahn, M.D.Danbury, CT 068101720064504
  3. Karen Coblens, MDDanbury, CT 068101063479848
  4. Allen Davis, M.D.Danbury, CT 068101639163439
  5. Amin Elashker, DODanbury, CT 068101093794182
  6. Sateesh Kathiravelu, M.D.Danbury, CT 068101083665244
  7. Asha Marhatta, MD; MPHDanbury, CT 068101366490013
  8. Kathleen Mauks, M.D.Danbury, CT 068101629064035

Common questions

What is Aiswarya Anna Thomas, M.D.'s NPI number?

Aiswarya Anna Thomas, M.D.'s National Provider Identifier (NPI) is 1841584026, issued on Jun 5, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Aiswarya Anna Thomas, M.D. located?

The NPPES record lists a practice address at 70 Main St, Danbury, CT, 06810. Phone: (203) 791-5030. Providers update this record themselves, so call before visiting.

How can I verify Aiswarya Anna Thomas, M.D.'s license?

NPPES lists Connecticut license number 53397, 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 Aiswarya Anna Thomas, M.D. prescribe under Medicare Part D?

In 2024, Aiswarya Anna Thomas, M.D. had 251 Medicare Part D claims for 84 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.