Justin Massey
NPI 1588161418 · Infectious Disease Physician · Madison, WI
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Massey is a Infectious Disease Physician provider in Madison, WI (NPI 1588161418).
Provider details
- NPI number
- 1588161418
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 72541 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2018-04-08
- Last updated
- 2023-08-07
- Certified
- 2023-08-07
Frequently asked questions
- What is Justin Massey's NPI number?
- Justin Massey's National Provider Identifier (NPI) is 1588161418, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Massey's specialty?
- Justin Massey is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Massey located?
- Justin Massey's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-0001.
- What is Justin Massey's phone number?
- The practice phone number listed in the NPPES registry for Justin Massey is (608) 263-0946.
- Does Justin Massey accept Medicare?
- Justin Massey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Massey's NPI active?
- Yes — Justin Massey's NPI (1588161418) is active in the NPPES registry as of the last update on 2023-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.