Mary Susan Jay, MD
NPI 1649221482 · Pediatric Adolescent Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Susan Jay, MD is a Pediatric Adolescent Medicine Physician provider in Milwaukee, WI (NPI 1649221482).
Provider details
- NPI number
- 1649221482
- Entity type
- Individual
- Primary specialty
- Pediatric Adolescent Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 47315 (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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 6809 122nd AveKenosha, WI 53142-7335Phone: (877) 607-5280
- 9000 W Wisconsin AveMilwaukee, WI 53226-4874Phone: (414) 266-2754Fax: (414) 337-7860
Registry dates
- Enumerated
- 2006-05-15
- Last updated
- 2019-06-03
Frequently asked questions
- What is Mary Susan Jay's NPI number?
- Mary Susan Jay's National Provider Identifier (NPI) is 1649221482, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Susan Jay's specialty?
- Mary Susan Jay is listed in the NPPES registry with a primary specialty of Pediatric Adolescent Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Susan Jay located?
- Mary Susan Jay's practice location on file with NPPES is 8915 W Connell Ave, Milwaukee, WI 53226-3067.
- What is Mary Susan Jay's phone number?
- The practice phone number listed in the NPPES registry for Mary Susan Jay is (414) 266-2873.
- Does Mary Susan Jay accept Medicare?
- Mary Susan Jay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Susan Jay's NPI active?
- Yes — Mary Susan Jay's NPI (1649221482) is active in the NPPES registry as of the last update on 2019-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.