DR. WILLIAM H CADDOO DC
NPI 1417037391
Chiropractor in Waltham, MA
About Dr. William H Caddoo Dc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM H CADDOO DC (NPI 1417037391) is an individual chiropractor in Waltham, Massachusetts, licensed in Massachusetts (2554) and active in the NPI registry since October 2006. He is a graduate of New York Chiropractic College (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. William H Caddoo Dc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show William Caddoo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Waltham, MA 02452
- Reassigned Medicare billing, Massachusetts enrollment
- 6 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALTHAM, MA 02452
WALTHAM, MA 02452
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 William Caddoo's NPI number?
The NPI number for William Caddoo is 1417037391. It was assigned to this individual provider in the NPPES registry on October 16, 2006.
Where is William Caddoo located?
William Caddoo practices at 564 Main Street, Waltham, MA 02452. The listed phone number is (781) 894-8880.
What is William Caddoo's specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is William Caddoo enrolled in Medicare?
Yes. William Caddoo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for William Caddoo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Caddoo reassigns Medicare benefits to Patient First Chiropractic And Physical Therapy PC (Waltham, MA). The 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 William Caddoo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Caddoo accept?
Health plans from Anthem Blue Cross and Blue Shield, Providence Health Plan and Taro Health list William Caddoo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for William Caddoo was last updated on June 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.
# Dr. William H Caddoo, DC · NPI 1417037391
Chiropractor provider in Waltham, Massachusetts. Individual provider, active in the CMS NPPES registry since October 16, 2006.
## Identity
- **NPI:** 1417037391 (Entity type: Individual)
- **Enumerated:** October 16, 2006
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **State license:** 2554 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 564 MAIN STREET, Waltham, MA 02452
- **Phone:** (781) 894-8880 · **Fax:** (781) 894-1121
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Patient First Chiropractic And Physical Therapy PC (NPI 1275602104, Waltham, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Chiropractic College, class of 2000
## Record status
- **NPPES last updated:** June 18, 2013
- **Other identifiers:** Medicare UPIN U85354; Medicare ID-Type Unspecified Y45440
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Source: [NPI Profile](https://npiprofile.com/npi/1417037391) · Data from the CMS NPPES public registry.