Dr. Mala Thenappan, MD
- Medicare patients, 2024
- 15
- Part D claims, 2020
- 12
- Hospital affiliations
- 1
- Industry payments
- $1,432
- Medical groups
- 2
- Practice address
- N2950 State Road 67, Lake Geneva, WI 53147
- Practice phone
- Call (262) 245-0535
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Thenappan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mala Thenappan is a general surgeon in Lake Geneva, Wisconsin
Dr. Thenappan practices at Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin, part of Mercyhealth.
Dr. Thenappan's NPI, 1861447427, was assigned on May 23, 2006. Dr. Thenappan graduated from Medical College of Wisconsin in 1993. Dr. Thenappan holds Wisconsin license 36822-020.
- NPI
- 1861447427NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577556679
- NPI enumeration date
- May 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (262) 245-0535
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mala Thenappan practices at 2 locations in Lake Geneva, Wisconsin
Dr. Thenappan's primary practice is Mercyhealth Hospital and Medical Center-Walworth, at N2950 State Road 67, Lake Geneva, WI 53147 in Walworth County. The practice phone is (262) 245-0535. Dr. Thenappan also practices at Mercyhealth Hospital and Medical Center- Walworth, 2950 State Rd 67, Lake Geneva, WI 53147.
- Mercyhealth Hospital and Medical Center-WalworthPrimaryN2950 State Road 67, Lake Geneva, WI 53147 · Walworth CountyPhone(262) 245-0535
- Mercyhealth Hospital and Medical Center- Walworth2950 State Rd 67, Lake Geneva, WI 53147 · Walworth CountyPhone(262) 245-0535
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Mala Thenappan is affiliated with 4 sites of care and 2 medical groups
Dr. Thenappan's primary practice is Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin, part of Mercyhealth. The medical group on file is Mercyhealth. Dmand AI also links Dr. Thenappan to 1 more physician office, 1 group practice or clinic, 1 therapy and rehab clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mala Thenappan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thenappan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercyhealth Hospital and Medical Center-Walworth | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mercyhealth and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mala Thenappan is one of 565 general surgeons in Wisconsin
Surgery is Dr. Thenappan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Thenappan is licensed in Wisconsin.
Specialties and state licenses
- Surgery, WisconsinPrimary
General surgeons near Dr. Thenappan
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mala Thenappan treated 15 Medicare patients in 2024, average age 75
CMS counts 15 Medicare patients who saw Dr. Thenappan in 2024. Their average risk score is 1.25, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Thenappan's median patient age at 49, with 71% women.
Dr. Thenappan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women71%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mala Thenappan wrote 12 Medicare Part D claims in 2020
In 2020, Dr. Thenappan wrote 12 Medicare Part D claims. They cover 1 drug, with $85 in total drug cost.
Dr. Thenappan's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Mala Thenappan takes part in Medicare
Dr. Thenappan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mala Thenappan received $1,432 in industry payments from 2016 to 2018
CMS Open Payments shows 6 general payments to Dr. Thenappan from 1 drug or device company from 2016 to 2018. Travel and lodging make up the largest share, 82% of the total. Davol Inc. paid the most, $1,432.
General payments to Dr. Thenappan by program year, 2016 to 2018
General payments to Dr. Thenappan by kind, 2016 to 2018
- Travel and lodging$1,17482%
- Food and beverage$25818%
Companies that paid Dr. Thenappan the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mala Thenappan graduated from Medical College of Wisconsin
Dr. Thenappan graduated from Medical College of Wisconsin in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mala Thenappan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mala Thenappan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mala Thenappan's NPI number?
Dr. Mala Thenappan's NPI number is 1861447427. It was assigned on May 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mala Thenappan?
Dr. Mala Thenappan is a general surgeon in Lake Geneva, Wisconsin. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Mala Thenappan practice?
Dr. Thenappan practices at N2950 State Road 67, Lake Geneva, WI 53147. Dr. Thenappan also practices at 2950 State Rd 67, Lake Geneva, WI 53147. Dr. Thenappan's primary practice is Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin, part of Mercyhealth. Dmand AI also links Dr. Thenappan to 1 physician office, 1 group practice or clinic, 1 therapy and rehab clinic and 1 medical group.
What is Dr. Mala Thenappan's office phone number?
The practice phone on file for Dr. Thenappan is (262) 245-0535.
What is Dr. Mala Thenappan's medical license number?
Dr. Thenappan holds Wisconsin license 36822-020.
Which hospitals is Dr. Mala Thenappan affiliated with?
Dr. Thenappan practices at Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin.
What medical group is Dr. Mala Thenappan part of?
Dr. Thenappan is linked to Mercyhealth. Dmand AI links Dr. Thenappan to 1 more medical group.
Does Dr. Mala Thenappan accept Medicare?
Yes. CMS lists Dr. Thenappan as accepting Medicare assignment.
How many Medicare patients does Dr. Mala Thenappan see?
CMS counts 15 Medicare patients who saw Dr. Thenappan in 2024, with an average age of 75.
Where did Dr. Mala Thenappan go to medical school?
Dr. Thenappan graduated from Medical College of Wisconsin in 1993.
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What drugs does Dr. Mala Thenappan prescribe most?
In 2020 Medicare Part D data, Dr. Thenappan's most prescribed drugs by claims were Oxycodone-Acetaminophen.
Has Dr. Mala Thenappan received payments from drug or device companies?
CMS Open Payments shows $1,432 in general payments to Dr. Thenappan from 1 company from 2016 to 2018. The largest total came from Davol Inc.
How long has Dr. Mala Thenappan been practicing?
Dr. Thenappan graduated from medical school in 1993, 33 years ago.
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