Dr. Bibiano C. Ronquillo III, MD
- Medicare services, 2024
- 779
- Medicare patients, 2024
- 266
- Part D claims, 2024
- 5,846
- Hospital affiliations
- 5
- Industry payments
- $2,284
- 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. Ronquillo'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. Bibiano C. Ronquillo III is an internist in Lake Geneva, Wisconsin
Dr. Ronquillo practices at Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin, part of Mercyhealth.
Dr. Ronquillo's NPI, 1285791228, was assigned on January 2, 2007. Dr. Ronquillo graduated from University of Santo Tomas in 1988.
- NPI
- 1285791228NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103956933
- NPI enumeration date
- January 2, 2007
- 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
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bibiano C. Ronquillo III practices at 2 locations in Lake Geneva, Wisconsin
Dr. Ronquillo'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. Ronquillo 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. Bibiano C. Ronquillo III is affiliated with 8 sites of care and 1 medical group
Dr. Ronquillo's primary practice is Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin, part of Mercyhealth. Dr. Ronquillo is also affiliated with Northwestern Medicine McHenry Hospital. The medical group on file is Mercyhealth. Dmand AI also links Dr. Ronquillo to 3 more hospitals, 1 group practice or clinic, 1 home health agency and 1 therapy and rehab clinic, 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. Bibiano C. Ronquillo III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ronquillo practices, 8 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 |
| +7 more affiliated sites | 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. Bibiano C. Ronquillo III is one of 1,675 internists in Wisconsin
Internal medicine is Dr. Ronquillo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ronquillo has a license on file in Illinois.
Specialties and state licenses
- Internal medicine, Illinois
Internists near Dr. Ronquillo
Counts of internists 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. Bibiano C. Ronquillo III billed Medicare for 779 services in 2024
CMS data shows 779 Medicare services from Dr. Ronquillo across 9 procedure codes in 2024, for 266 Medicare patients. Medicare paid $60,983 for them. Every service was in an office.
Dr. Ronquillo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5692024: 5209%
- Other services
- 2023: 1792024: 1762%
- Tests and treatments
- 2023: 982024: 8315%
Dr. Ronquillo compared with the Wisconsin median for internists, 2024
- Dr. Ronquillo
- Wisconsin median
- Medicare services
- 779vs 45770% above
- Medicare patients
- 266vs 19934% above
- Part D claims
- 5,353vs 43312.4 times
Medians across 1,658 internists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Ronquillo's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Ronquillo?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ronquillo and other internists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Bibiano C. Ronquillo III treated 266 Medicare patients in 2024, average age 75
CMS counts 266 Medicare patients who saw Dr. Ronquillo in 2024. The largest group is 65 to 74, with 120 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ronquillo's median patient age at 72, with 37% women.
Dr. Ronquillo's Medicare patients by age, 2024
Dr. Ronquillo's Medicare patients by sex, 2024
- Women10740%
- Men15960%
Chronic conditions among Dr. Ronquillo's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis41%
- Diabetes33%
- Chronic kidney disease31%
- Anxiety22%
- Ischemic heart disease18%
- COPD16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ronquillo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women37%
- Men62%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Bibiano C. Ronquillo III wrote 5,846 Medicare Part D claims in 2024
In 2024, Dr. Ronquillo wrote 5,846 Medicare Part D claims for 346 patients. 88% of them were for generic drugs. CMS names the drug for 5,353 of them, across 86 drugs with 11 or more claims each, at $524,911 in total drug cost. In 2023, CMS named 4,826 claims across 79 drugs.
Dr. Ronquillo's Part D claims by kind of drug, 2024
- Generic5,148 claims88%
- Brand-name667 claims11%
- Other31 claims1%
Dr. Ronquillo's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Ronquillo's Part D claims, 2024
- Opioids1%35 of 5,846 claims
- Antibiotics1%73 of 5,846 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,8262024: 5,35311%
Drugs named by CMS: 86 in 2024, 79 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Bibiano C. Ronquillo III takes part in Medicare
Dr. Ronquillo 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. Bibiano C. Ronquillo III received $2,284 in industry payments from 2016 to 2024
CMS Open Payments shows 68 general payments to Dr. Ronquillo from 17 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 93% of the total. Sanofi and Genzyme US Companies paid the most, $689.
General payments to Dr. Ronquillo by program year, 2016 to 2024
General payments to Dr. Ronquillo by kind, 2016 to 2024
- Food and beverage$2,11793%
- Speaker and faculty fees$1306%
- Education$372%
Companies that paid Dr. Ronquillo the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Bibiano C. Ronquillo III graduated from University of Santo Tomas
Dr. Ronquillo graduated from University of Santo Tomas in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Bibiano C. Ronquillo III'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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)Medicare Part D Prescribers - by Provider (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. Bibiano C. Ronquillo III
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. Bibiano C. Ronquillo III's NPI number?
Dr. Bibiano C. Ronquillo III's NPI number is 1285791228. It was assigned on January 2, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Bibiano C. Ronquillo III?
Dr. Bibiano C. Ronquillo III is an internist in Lake Geneva, Wisconsin. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Bibiano C. Ronquillo III practice?
Dr. Ronquillo practices at N2950 State Road 67, Lake Geneva, WI 53147. Dr. Ronquillo also practices at 2950 State Rd 67, Lake Geneva, WI 53147. Dr. Ronquillo's primary practice is Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin, part of Mercyhealth. Dmand AI also links Dr. Ronquillo to 3 hospitals, 1 group practice or clinic, 1 home health agency and 1 therapy and rehab clinic.
What is Dr. Bibiano C. Ronquillo III's office phone number?
The practice phone on file for Dr. Ronquillo is (262) 245-0535.
Which hospitals is Dr. Bibiano C. Ronquillo III affiliated with?
Dr. Ronquillo practices at Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin. Dr. Ronquillo is also affiliated with Northwestern Medicine McHenry Hospital. Dmand AI links Dr. Ronquillo to 3 more hospitals.
What medical group is Dr. Bibiano C. Ronquillo III part of?
Dr. Ronquillo is linked to Mercyhealth.
Does Dr. Bibiano C. Ronquillo III accept Medicare?
Yes. CMS data shows Dr. Ronquillo billed Medicare for 779 services in 2024, and Dr. Ronquillo accepts Medicare assignment.
How many Medicare patients does Dr. Bibiano C. Ronquillo III see?
CMS counts 266 Medicare patients who saw Dr. Ronquillo in 2024, with an average age of 75.
What services does Dr. Bibiano C. Ronquillo III bill to Medicare?
In 2024, Dr. Ronquillo's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G0008).
Where did Dr. Bibiano C. Ronquillo III go to medical school?
Dr. Ronquillo graduated from University of Santo Tomas in 1988.
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What drugs does Dr. Bibiano C. Ronquillo III prescribe most?
In 2024 Medicare Part D data, Dr. Ronquillo's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Dr. Bibiano C. Ronquillo III received payments from drug or device companies?
CMS Open Payments shows $2,284 in general payments to Dr. Ronquillo from 17 companies from 2016 to 2024. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Bibiano C. Ronquillo III been practicing?
Dr. Ronquillo graduated from medical school in 1988, 38 years ago.
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