IndividualActive
William Parker, MD
NPI 1598733511 · Family Medicine Physician · Leominster, MA
William Parker, MD is a Family Medicine Physician provider in Leominster, MA (NPI 1598733511).
Provider details
- NPI number
- 1598733511
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 51115 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
165 Mill St
Leominster, MA 01453
Phone: (978) 466-3208
Fax: (978) 840-1680
Street-level locationGet directions
Mailing address
630 Plantation St
Worcester, MA 01605
Registry dates
- Enumerated
- 2006-03-08
- Last updated
- 2009-02-20
Frequently asked questions
- What is William Parker's NPI number?
- William Parker's National Provider Identifier (NPI) is 1598733511, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Parker's specialty?
- William Parker is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Parker located?
- William Parker's practice location on file with NPPES is 165 Mill St, Leominster, MA 01453.
- What is William Parker's phone number?
- The practice phone number listed in the NPPES registry for William Parker is (978) 466-3208.
- Is William Parker's NPI active?
- Yes — William Parker's NPI (1598733511) is active in the NPPES registry as of the last update on 2009-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.