Jack Lin, DO
NPI 1639630098 · Internal Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Lin, DO is a Internal Medicine Physician provider in Milwaukee, WI (NPI 1639630098).
Provider details
- NPI number
- 1639630098
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- R-11707 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 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 (1)
- 1111 6th AveDes Moines, IA 50314-2613Phone: (515) 643-2261Fax: (515) 643-5802
Registry dates
- Enumerated
- 2019-03-28
- Last updated
- 2025-08-26
- Certified
- 2025-08-26
Frequently asked questions
- What is Jack Lin's NPI number?
- Jack Lin's National Provider Identifier (NPI) is 1639630098, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Lin's specialty?
- Jack Lin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Lin located?
- Jack Lin's practice location on file with NPPES is 9200 W Wisconsin Ave, Milwaukee, WI 53226-3522.
- What is Jack Lin's phone number?
- The practice phone number listed in the NPPES registry for Jack Lin is (414) 805-6550.
- Does Jack Lin accept Medicare?
- Jack Lin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Lin's NPI active?
- Yes — Jack Lin's NPI (1639630098) is active in the NPPES registry as of the last update on 2025-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.