MALA THENAPPAN MD
NPI 1861447427
Surgery in Milwaukee, WI
About Mala Thenappan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MALA THENAPPAN MD (NPI 1861447427) is an individual surgery provider in Milwaukee, Wisconsin, licensed in Wisconsin (36822-020) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with Mercy Walworth Hospital & Medical Center, and maintains a secondary practice location in Lake Geneva.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 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
Mala Thenappan Md 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 Mala Thenappan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Watertown, WI 53098
- Reassigned Medicare billing, Wisconsin enrollment
- 215 clinicians in this Medicare group
Lake Geneva, WI 53147
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1669685129 (Wisconsin)
- 271 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Walworth Hospital & Medical Center
Critical Access Hospitals · Lake Geneva, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53210 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 53210
MILWAUKEE, WI 53210
MILWAUKEE, WI 53210
MILWAUKEE, WI 53210
MILWAUKEE, WI 53210
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 Mala Thenappan's NPI number?
The NPI number for Mala Thenappan is 1861447427. It was assigned to this individual provider in the NPPES registry on May 23, 2006.
Where is Mala Thenappan located?
Mala Thenappan practices at 3070 N 51st St Suite 100, Milwaukee, WI 53210. The listed phone number is (414) 875-9950.
What is Mala Thenappan's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Mala Thenappan enrolled in Medicare?
Yes. Mala Thenappan 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 Mala Thenappan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mala Thenappan reassigns Medicare benefits to 2 organizations: Watertown Physician Practices LLC (Watertown, WI) and Mercy Health System Corporation (Lake Geneva, 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 Mala Thenappan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mala Thenappan accept?
Health plans from CareSource (Common Ground Healthcare), Group Health Cooperative-SCW, MercyCare, MercyCare Health Plans and Network Health list Mala Thenappan 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 Mala Thenappan affiliated with any hospitals?
According to CMS data, Mala Thenappan is affiliated with Mercy Walworth Hospital & Medical Center.
When was this NPI record last updated?
The NPPES record for Mala Thenappan was last updated on April 1, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.
# Mala Thenappan, MD · NPI 1861447427
Surgery physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since May 23, 2006.
## Identity
- **NPI:** 1861447427 (Entity type: Individual)
- **Enumerated:** May 23, 2006
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 36822-020 (Wisconsin)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3070 N 51ST ST, SUITE 100, Milwaukee, WI 53210-1645
- **Phone:** (414) 875-9950 · **Fax:** (414) 447-2575
## 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): Watertown Physician Practices LLC (NPI 1225412265, Watertown, WI); Mercy Health System Corporation (NPI 1699728550, Lake Geneva, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Wisconsin, class of 1993
## Record status
- **NPPES last updated:** April 1, 2024
- **Other identifiers:** Medicaid 32430500 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1861447427) · Data from the CMS NPPES public registry.