NPPES file of Aug 9, 2026

Allen Davis, M.D.

Internal Medicine Physician · Danbury, CT

Allen Davis, M.D. is an internal medicine physician with a practice address in Danbury, Connecticut, and NPI 1639163439, issued on Sep 7, 2005. Check the license (Connecticut 041832, 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
1639163439
Name
Allen Davis
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
041832 CT
Self-reported in NPPES; status is on the state search
Practice location
105 Newtown RD Ste B, Danbury, CT 06810
Phone
(203) 842-2888
Enumerated
Sep 7, 2005
Record last updated
Dec 30, 2025
Fax
(833) 764-2912
Medicare enrollment
Enrolled (PECOS I20040105000606); accepts Medicare assignment
Medical or professional school
State University Of New York At Buffalo School Of Medicine, 1996
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

Verify Allen Davis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 041832
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.4 times the Medicare Part D claims of the average internal medicine physician in 2024

7,755 Medicare Part D claims for 743 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 33 claims were for opioids.

  1. Allen Davis7,755
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium806 claims
  2. Rosuvastatin Calcium545 claims
  3. Amlodipine Besylate455 claims
  4. Lisinopril302 claims
  5. Levothyroxine Sodium264 claims
  6. Hydrochlorothiazide222 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. Prohealth Physicians PCDanbury, CT

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

Allen Davis among 2,623 internal medicine physician records in Connecticut

Allen Davis, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 89% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1996 · median 2004 among the 1,646 with a school on file
  • Record last updated2025 · 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. Amin Elashker, DODanbury, CT 068101093794182
  5. Sateesh Kathiravelu, M.D.Danbury, CT 068101083665244
  6. Asha Marhatta, MD; MPHDanbury, CT 068101366490013
  7. Kathleen Mauks, M.D.Danbury, CT 068101629064035
  8. Anne Mauks, M.D.Danbury, CT 068101427044569

Common questions

What is Allen Davis, M.D.'s NPI number?

Allen Davis, M.D.'s National Provider Identifier (NPI) is 1639163439, issued on Sep 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Allen Davis, M.D. located?

The NPPES record lists a practice address at 105 Newtown RD Ste B, Danbury, CT, 06810. Phone: (203) 842-2888. Providers update this record themselves, so call before visiting.

How can I verify Allen Davis, M.D.'s license?

NPPES lists Connecticut license number 041832, 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 Allen Davis, M.D. prescribe under Medicare Part D?

In 2024, Allen Davis, M.D. had 7,755 Medicare Part D claims for 743 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.