OrganizationActive
Hayward K Zwerling
NPI 1033391289 · Specialist · North Chelmsford, MA
Hayward K Zwerling is a Specialist organization in North Chelmsford, MA (NPI 1033391289).
Provider details
- NPI number
- 1033391289
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Hayward Zwerling, Owner(978) 459-0018
- License
- 58946 (MA)
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
20 Research Pl
Suite 300
North Chelmsford, MA 01863-2412
Phone: (978) 459-0018
Fax: (978) 656-9950
Street-level locationGet directions
Mailing address
20 Research Pl
North Chelmsford, MA 01863-2412
Other names (DBA / former)
- Other name
- Lowell Diabetes and Endocrine Center
Registry dates
- Enumerated
- 2007-11-29
- Last updated
- 2008-01-17
Frequently asked questions
- What is Hayward K Zwerling's NPI number?
- Hayward K Zwerling's National Provider Identifier (NPI) is 1033391289, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Hayward K Zwerling?
- Hayward K Zwerling is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Hayward K Zwerling located?
- Hayward K Zwerling's practice location on file with NPPES is 20 Research Pl, North Chelmsford, MA 01863-2412.
- What is Hayward K Zwerling's phone number?
- The practice phone number listed in the NPPES registry for Hayward K Zwerling is (978) 459-0018.
- Who is the authorized official for Hayward K Zwerling?
- The authorized official listed on Hayward K Zwerling's NPPES record is Hayward Zwerling, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Hayward K Zwerling's NPI active?
- Yes — Hayward K Zwerling's NPI (1033391289) is active in the NPPES registry as of the last update on 2008-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.