Benjamin Chao, D.O.
Family Medicine Physician · Janesville, WI
Benjamin Chao, D.O. is a family medicine physician with a practice address in Janesville, Wisconsin, and NPI 1760833727, issued on Jun 30, 2016. Check the license on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Benjamin Chao
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 188.000679 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3200 E Racine St, Janesville, WI 53546
- Phone
- (608) 371-8000
- Enumerated
- Jun 30, 2016
- Record last updated
- Nov 5, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (608) 371-8938
- Medicaid ID
- 1760833727 WI
- Medicare enrollment
- Enrolled (PECOS I20200205001648); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 3200 E Racine St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omar Alnaser, M.D.Pediatrics Physician1396474201
- Jenny Amani, M.D.Occupational Medicine Physician1629212899
- Molly ArttusPhysician Assistant1366233041
- Brittany Austin, PA-CMedical Physician Assistant1013226968
- Timothy Axe, DPMPodiatrist1619932621
- Susan Baird, DNP, APRN, FNP-BCNurse Practitioner1225305758
Verify Benjamin Chao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% more Medicare Part D claims than the average family medicine physician in 2024
6,216 Medicare Part D claims for 579 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 148 claims were for opioids.
Most prescribed
- Atorvastatin Calcium561 claims
- Omeprazole293 claims
- Lisinopril288 claims
- Amlodipine Besylate229 claims
- Levothyroxine Sodium209 claims
- Hydrochlorothiazide163 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Dean Health Systems IncJanesville, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Benjamin Chao among 3,765 family medicine physician records in Wisconsin
Benjamin Chao, D.O. is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2016 · median 2007 among the 2,347 with a school on file
- Record last updated2020 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
73 family medicine physician records list a practice address in Janesville
They are 73 of the 1,538 NPPES records with a practice address in Janesville, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Janesville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jane Anderson, MDJanesville, WI 535461942220140
- Leslie Bernstein, MDJanesville, WI 535461447296876
- Ronald Bowers, MDJanesville, WI 535461265446355
- Janet Dabson, MDJanesville, WI 535461083797716
- Debra Ewing, DOJanesville, WI 535461619984127
- Brett Goettsch, MDJanesville, WI 535461396787594
- Perka Guenev, M.D.Janesville, WI 535461205934254
- John Keener, MDJanesville, WI 535461578539086
Common questions
What is Benjamin Chao, D.O.'s NPI number?
Benjamin Chao, D.O.'s National Provider Identifier (NPI) is 1760833727, issued on Jun 30, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Chao, D.O. located?
The NPPES record lists a practice address at 3200 E Racine St, Janesville, WI, 53546. Phone: (608) 371-8000. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Chao, D.O.'s license?
Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Benjamin Chao, D.O. prescribe under Medicare Part D?
In 2024, Benjamin Chao, D.O. had 6,216 Medicare Part D claims for 579 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.