IndividualActive
John Halliday
NPI 1659684702 · Personal Care Attendant · Marysville, MI
John Halliday is a Personal Care Attendant provider in Marysville, MI (NPI 1659684702).
Provider details
- NPI number
- 1659684702
- Entity type
- Individual
- Primary specialty
- Personal Care AttendantNursing Service Related Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Nursing Service Related Providers
Profile Score
Detailed profile(77/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
83% 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
1600 Gratiot Blvd
Marysville, MI 48040-1145
Phone: (810) 388-1200
Street-level locationGet directions
Mailing address
3795 Moak St
Port Huron, MI 48060-4664
Registry dates
- Enumerated
- 2010-07-19
- Last updated
- 2010-07-19
Frequently asked questions
- What is John Halliday's NPI number?
- John Halliday's National Provider Identifier (NPI) is 1659684702, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Halliday's specialty?
- John Halliday is listed in the NPPES registry with a primary specialty of Personal Care Attendant (Nursing Service Related Providers).
- Where is John Halliday located?
- John Halliday's practice location on file with NPPES is 1600 Gratiot Blvd, Marysville, MI 48040-1145.
- What is John Halliday's phone number?
- The practice phone number listed in the NPPES registry for John Halliday is (810) 388-1200.
- Is John Halliday's NPI active?
- Yes — John Halliday's NPI (1659684702) is active in the NPPES registry as of the last update on 2010-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.