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DR ALLEN DAVIS PLLC
NPI 1144193327
Internal Medicine in Danbury, CT

Active since September 24, 2025CLIA 07D2330010 · Waiver
105 NEWTOWN RD STE B, DANBURY, CT 06810(203) 842-2888 Get Directions Write a Review

NPPES record last updated: December 30, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr Allen Davis Pllc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR ALLEN DAVIS PLLC (NPI 1144193327) is a healthcare organization registered as an internal medicine in Danbury, Connecticut and active in the NPI registry since September 2025. The organization holds a CLIA Waiver certificate valid through September 8, 2027 and lists Allen Davis, Physician Owner, as its authorized official.

NPPES Registry Identity

NPI1144193327
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameDR ALLEN DAVIS PLLC
Location Address105 NEWTOWN RD STE BDanbury, CT 06810-4114
Mailing Address105 Newtown Rd Ste BDanbury, CT 06810-4114 · (203) 842-2888 · Fax (833) 764-2912
Phone(203) 842-2888
Organization SubpartNo
Authorized OfficialAllen DavisPhysician Owner · (203) 842-2888
Enumeration DateSeptember 24, 2025
Last NPPES UpdateDecember 30, 2025
NPPES CertifiedDecember 30, 2025
✔ NPI 1144193327 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
105 NEWTOWN RD STE B, Danbury, CT 06810
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr Allen Davis Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Dr Allen Davis PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Allen Davis, M.D.
Internal Medicine
NPI 1639163439
105 NEWTOWN RD STE B
Danbury, CT 06810
(203) 842-2888
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 07D2330010

Dr Allen Davis, PLLC · Danbury, CT
Active · expires Sep 8, 2027
CLIA Number07D2330010
Laboratory TypePhysician Office
Certificate Effective DateSeptember 9, 2025
Certificate Expiration DateSeptember 8, 2027
Laboratory DirectorAllen F. Davis
Laboratory Phone(203) 842-2888
Laboratory LocationDr Allen Davis, PLLC105 Newtown Road Suite B, Danbury, CT 06810
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Dr Allen Davis PLLC's NPI number?

The NPI number for Dr Allen Davis PLLC is 1144193327. It was assigned to this organization in the NPPES registry on September 24, 2025.

Where is Dr Allen Davis PLLC located?

Dr Allen Davis PLLC is located at 105 Newtown Rd Ste B, Danbury, CT 06810. The listed phone number is (203) 842-2888.

What is Dr Allen Davis PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Dr Allen Davis PLLC enrolled in Medicare?

Yes. Dr Allen Davis PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Dr Allen Davis PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Dr Allen Davis PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Dr Allen Davis PLLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 07D2330010) is associated with this NPI, valid through September 8, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Dr Allen Davis PLLC was last updated on December 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.