William Lee Day, P.T.
Physical Therapist · Danbury, CT
William Lee Day, P.T. is a physical therapist with a practice address in Danbury, Connecticut, and NPI 1275629602, issued on Oct 5, 2006. Check the license (Connecticut 004914, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Lee Day
- Credential
- P.T.
- Primary taxonomy
- Physical Therapist 225100000X
- License numbers
- 004914 CT
008242-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 33 Hospital Avenue, Danbury, CT 06810
- Phone
- (203) 792-5558
- Enumerated
- Oct 5, 2006
- Record last updated
- Oct 19, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (203) 731-3213
- Medicare enrollment
- Enrolled (PECOS I20090924000614); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 3,569 in Connecticut → Look up another NPI →
Also registered at 33 Hospital Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Baitinger, PAPhysician Assistant1396793857
- Karen Constantine, P.T.Physical Therapist1922209147
Verify William Lee Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 004914Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Day Physical Therapy Management LLCBridgeport, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Lee Day among 3,569 physical therapist records in Connecticut
William Lee Day, P.T. is one of 3,569 physical therapist records with a practice address in Connecticut. 29% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 78% newer
- In a Medicare fileYes · 29% of these records are
- In the CMS Doctors and Clinicians fileYes · 31% of these records are
- Graduated1984 · median 2014 among the 1,098 with a school on file
- Record last updated2009 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
62 physical therapist records list a practice address in Danbury
They are 62 of the 2,412 NPPES records with a practice address in Danbury, and 3,569 physical therapist records in Connecticut.
All 3,569 in Connecticut → Every provider in Danbury → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Cynthia Bahr, PTDanbury, CT 068101689653388
- Christopher Barstrom, PTDanbury, CT 068101760406417
- Patricia Holland, PTDanbury, CT 068101710928791
- David Jewell, RPTDanbury, CT 068101861584930
- Jill Maloney, PTDanbury, CT 068101710928742
- James McKay, P.T.Danbury, CT 068101831276500
- Stephen Merkle, MS PT OCSDanbury, CT 068101417998857
- Jennifer Palmer, RPTDanbury, CT 068101669496212
Common questions
What is William Lee Day, P.T.'s NPI number?
William Lee Day, P.T.'s National Provider Identifier (NPI) is 1275629602, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Lee Day, P.T. located?
The NPPES record lists a practice address at 33 Hospital Avenue, Danbury, CT, 06810. Phone: (203) 792-5558. Providers update this record themselves, so call before visiting.
How can I verify William Lee Day, P.T.'s license?
NPPES lists Connecticut license number 004914, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity 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.