NPPES file of Aug 9, 2026

Andrew Keller, M.D.

Cardiovascular Disease Physician · Danbury, CT

Andrew Keller, M.D. is a cardiovascular disease physician with a practice address in Danbury, Connecticut, and NPI 1013943810, issued on Jun 23, 2006. Check the license (Connecticut 030360, as entered in NPPES) on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1013943810
Name
Andrew Keller
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
030360 CT
Self-reported in NPPES; status is on the state search
Practice location
27 Hospital Ave, Danbury, CT 06810
Phone
(203) 797-7155
Enumerated
Jun 23, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest cardiovascular disease physician records → All 503 in Connecticut → Look up another NPI →

Also registered at 27 Hospital Ave

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

  1. Brian Applebee, DCChiropractor1497920045
  2. Madhuri Bakhru, M.D.Obstetrics & Gynecology Physician1508801309
  3. William Beacher, PSY.D.Clinical Psychologist1619042546
  4. David Copen, M.D.Cardiovascular Disease Physician1871529974
  5. John Defrance, M.D.Surgery Physician1679515381
  6. Samuel Felder, M.D.Cardiovascular Disease Physician1255367041

Verify Andrew Keller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 030360    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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Andrew Keller among 503 cardiovascular disease physician records in Connecticut

Andrew Keller, M.D. is one of 503 cardiovascular disease physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 23% of them.

  • NPI issued2006 · 23% of these records are older, 45% newer
  • In a Medicare fileNo · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2007 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Connecticut

There are 503 cardiovascular disease physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 503 in Connecticut → Every provider in Danbury → Cardiovascular Disease Physician nationwide →

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Jonathan Alexander, M.D.Danbury, CT 068101710921754
  2. Margaret Bond, M.D.Danbury, CT 068101073538393
  3. David Copen, M.D.Danbury, CT 068101871529974
  4. Samuel Felder, M.D.Danbury, CT 068101255367041
  5. Ira Galin, M.D.Danbury, CT 068101588701585
  6. Robert Jarrett, MDDanbury, CT 068101710945779
  7. Harvey Kramer, M.D.Danbury, CT 068101518993302
  8. Susan Mani, M.D.Danbury, CT 068101356384531

Common questions

What is Andrew Keller, M.D.'s NPI number?

Andrew Keller, M.D.'s National Provider Identifier (NPI) is 1013943810, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Andrew Keller, M.D. located?

The NPPES record lists a practice address at 27 Hospital Ave, Danbury, CT, 06810. Phone: (203) 797-7155. Providers update this record themselves, so call before visiting.

How can I verify Andrew Keller, M.D.'s license?

NPPES lists Connecticut license number 030360, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.