Margaret Newton Mcmillan, FNP
NPI 1821213778 · Family Nurse Practitioner · Irvine, CA
Margaret Newton Mcmillan, FNP is a Family Nurse Practitioner provider in Irvine, CA (NPI 1821213778).
Provider details
- NPI number
- 1821213778
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- RN320758 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
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
Mailing address
Registry dates
- Enumerated
- 2007-04-16
- Last updated
- 2015-12-28
Frequently asked questions
- What is Margaret Newton Mcmillan's NPI number?
- Margaret Newton Mcmillan's National Provider Identifier (NPI) is 1821213778, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Newton Mcmillan's specialty?
- Margaret Newton Mcmillan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Newton Mcmillan located?
- Margaret Newton Mcmillan's practice location on file with NPPES is 14330 Culver Dr, Irvine, CA 92604-0303.
- What is Margaret Newton Mcmillan's phone number?
- The practice phone number listed in the NPPES registry for Margaret Newton Mcmillan is (949) 559-1522.
- Is Margaret Newton Mcmillan's NPI active?
- Yes — Margaret Newton Mcmillan's NPI (1821213778) is active in the NPPES registry as of the last update on 2015-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.