Donald Macmillan, PA
NPI 1881659167 · Physician Assistant · New Haven, CT
Donald Macmillan, PA is a Physician Assistant provider in New Haven, CT (NPI 1881659167).
Provider details
- NPI number
- 1881659167
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- License
- 000555 (CT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-04-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Donald Macmillan's NPI number?
- Donald Macmillan's National Provider Identifier (NPI) is 1881659167, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Macmillan's specialty?
- Donald Macmillan is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Donald Macmillan located?
- Donald Macmillan's practice location on file with NPPES is 800 Howard Ave, New Haven, CT 06519-1369.
- What is Donald Macmillan's phone number?
- The practice phone number listed in the NPPES registry for Donald Macmillan is (203) 785-2140.
- Is Donald Macmillan's NPI active?
- Yes — Donald Macmillan's NPI (1881659167) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.