Bobby Yap, MD
Family Medicine Physician · Janesville, WI
Bobby Yap, MD is a family medicine physician with a practice address in Janesville, Wisconsin, and NPI 1942357314, issued on Jan 5, 2007. Check the license (Wisconsin 38391, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Bobby Yap
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 38391 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3524 E Milwaukee St, Janesville, WI 53546
- Phone
- (608) 756-7100
- Enumerated
- Jan 5, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 32440700 WI
- Medicare enrollment
- Enrolled (PECOS I20100604000756); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 3524 E Milwaukee St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ryndon Bautista, M.D.Internal Medicine Physician1225230170
Verify Bobby Yap in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 38391Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family medicine physician in 2024
319 Medicare Part D claims for 222 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass36 claims
- Mupirocin34 claims
- Cephalexin25 claims
- Prednisone21 claims
- Doxycycline Monohydrate19 claims
- Azithromycin16 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
- Mercy Health System CorporationJanesville, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bobby Yap among 3,765 family medicine physician records in Wisconsin
Bobby Yap, MD 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 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 41% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1986 · median 2007 among the 2,347 with a school on file
- Record last updated2007 · 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 Bobby Yap, MD's NPI number?
Bobby Yap, MD's National Provider Identifier (NPI) is 1942357314, issued on Jan 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Bobby Yap, MD located?
The NPPES record lists a practice address at 3524 E Milwaukee St, Janesville, WI, 53546. Phone: (608) 756-7100. Providers update this record themselves, so call before visiting.
How can I verify Bobby Yap, MD's license?
NPPES lists Wisconsin license number 38391, as entered by the provider. 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 Bobby Yap, MD prescribe under Medicare Part D?
In 2024, Bobby Yap, MD had 319 Medicare Part D claims for 222 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.