John Sandefur
NPI 1184020224 · Nurse Practitioner · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Sandefur is a Nurse Practitioner provider in Ann Arbor, MI (NPI 1184020224).
Provider details
- NPI number
- 1184020224
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 4704253952 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
- 2014-11-18
- Last updated
- 2015-08-31
Frequently asked questions
- What is John Sandefur's NPI number?
- John Sandefur's National Provider Identifier (NPI) is 1184020224, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Sandefur's specialty?
- John Sandefur is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Sandefur located?
- John Sandefur's practice location on file with NPPES is 1500 East Medical Center Drive, Ann Arbor, MI 48109-5256.
- What is John Sandefur's phone number?
- The practice phone number listed in the NPPES registry for John Sandefur is (734) 936-4000.
- Does John Sandefur accept Medicare?
- John Sandefur is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Sandefur's NPI active?
- Yes — John Sandefur's NPI (1184020224) is active in the NPPES registry as of the last update on 2015-08-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.