JACK LIN DO
NPI 1639630098
Internal Medicine in Milwaukee, WI
About Jack Lin Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JACK LIN DO (NPI 1639630098) is an individual internal medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (81215) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Froedtert South Inc., and maintains a secondary practice location in Des Moines.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Jack Lin Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Jack Lin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 clinicians in this Medicare group
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Froedtert South Inc.
Acute Care Hospitals · Pleasant Prairie, WIFroedtert Memorial Lutheran Hospital
Acute Care Hospitals · Milwaukee, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53226 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Jack Lin's NPI number?
The NPI number for Jack Lin is 1639630098. It was assigned to this individual provider in the NPPES registry on March 28, 2019.
Where is Jack Lin located?
Jack Lin practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. The listed phone number is (414) 805-6550.
What is Jack Lin's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jack Lin enrolled in Medicare?
Yes. Jack Lin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Jack Lin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jack Lin reassigns Medicare benefits to 2 organizations: The Medical College Of Wisconsin, Inc. (Milwaukee, WI) and Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jack Lin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jack Lin accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, HealthPartners and Network Health list Jack Lin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Jack Lin affiliated with any hospitals?
According to CMS data, Jack Lin is affiliated with Froedtert South Inc. and Froedtert Memorial Lutheran Hospital.
When was this NPI record last updated?
The NPPES record for Jack Lin was last updated on August 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Jack Lin, DO · NPI 1639630098
Internal Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since March 28, 2019.
## Identity
- **NPI:** 1639630098 (Entity type: Individual)
- **Enumerated:** March 28, 2019
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 81215 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 9200 W WISCONSIN AVE, Milwaukee, WI 53226-3522
- **Phone:** (414) 805-6550 · **Fax:** (414) 805-6565
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI); Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (NPI 1568787448, Menomonee Falls, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Des Moines University Of Osteopathic Medicine And Health Sciences, class of 2019
## Record status
- **NPPES last updated:** August 26, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1639630098) · Data from the CMS NPPES public registry.