OrganizationActive
Waltham Chiropractic PC
NPI 1689719502 · Chiropractor · Waltham, MA
Waltham Chiropractic PC is a Chiropractor organization in Waltham, MA (NPI 1689719502).
Provider details
- NPI number
- 1689719502
- Entity type
- Organization
- Primary specialty
- ChiropractorChiropractic Providers
- Organization subpart
- No
- Authorized official
- John Duffy, Dr President(781) 894-4270
- License
- 1644 (MA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
425 River St
Waltham, MA 02453
Phone: (781) 894-4270
Fax: (781) 894-0461
Street-level locationGet directions
Mailing address
425 River St
Waltham, MA 02453
Other names (DBA / former)
- Other name
- Dr John Duffy
Registry dates
- Enumerated
- 2007-02-20
- Last updated
- 2009-12-21
Frequently asked questions
- What is Waltham Chiropractic PC's NPI number?
- Waltham Chiropractic PC's National Provider Identifier (NPI) is 1689719502, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Waltham Chiropractic PC?
- Waltham Chiropractic PC is classified in the NPPES registry as Chiropractor (Chiropractic Providers).
- Where is Waltham Chiropractic PC located?
- Waltham Chiropractic PC's practice location on file with NPPES is 425 River St, Waltham, MA 02453.
- What is Waltham Chiropractic PC's phone number?
- The practice phone number listed in the NPPES registry for Waltham Chiropractic PC is (781) 894-4270.
- Who is the authorized official for Waltham Chiropractic PC?
- The authorized official listed on Waltham Chiropractic PC's NPPES record is John Duffy, Dr President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Waltham Chiropractic PC's NPI active?
- Yes — Waltham Chiropractic PC's NPI (1689719502) is active in the NPPES registry as of the last update on 2009-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.