Jason D. Welch, MD
Hospitalist Physician · Janesville, WI
Jason D. Welch, MD is a hospitalist physician with a practice address in Janesville, Wisconsin, and NPI 1316094931, issued on Jan 4, 2007. Check the license (Wisconsin 47491-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jason D. Welch
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 47491-20 WI
47491 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Mineral Point Ave, Janesville, WI 53548
- Phone
- (608) 756-6000
- Enumerated
- Jan 4, 2007
- Record last updated
- Aug 19, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (608) 756-6236
- Medicaid IDs
- 1316094931 WI
34605700 WI - Medicare enrollment
- Enrolled (PECOS I20050114000477); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 894 in Wisconsin → Look up another NPI →
Also registered at 1000 Mineral Point Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jason D. Welch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 47491-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average hospitalist physician in 2024
458 Medicare Part D claims for 167 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass22 claims
- Eliquis20 claims
- Clopidogrel18 claims
- Metoprolol Tartrate16 claims
- Pantoprazole Sodium14 claims
- Prednisone14 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).
Jason D. Welch among 894 hospitalist physician records in Wisconsin
Jason D. Welch, MD is one of 894 hospitalist physician records with a practice address in Wisconsin. 91% 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 19% of them.
- NPI issued2007 · 19% of these records are older, 75% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2002 · median 2011 among the 768 with a school on file
- Record last updated2015 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Wisconsin
There are 894 hospitalist physician records in Wisconsin.
All 894 in Wisconsin → Every provider in Janesville → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Numan Aziz, M.D.Janesville, WI 535481275114167
- Orson Bangert, D.O.Janesville, WI 535481235455437
- David Isaacson, MDJanesville, WI 535481073562179
- Atiya Siddiqui, MDJanesville, WI 535481356597421
- Navneet Sidhu, M.D.Janesville, WI 535481568540011
- Venkata Niharika Yadavalli, MDJanesville, WI 535481578947354
- Chijen Chen, M.D.Janesville, WI 535461912589946
- William Clanfield, MDJanesville, WI 535461326085648
Common questions
What is Jason D. Welch, MD's NPI number?
Jason D. Welch, MD's National Provider Identifier (NPI) is 1316094931, issued on Jan 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jason D. Welch, MD located?
The NPPES record lists a practice address at 1000 Mineral Point Ave, Janesville, WI, 53548. Phone: (608) 756-6000. Providers update this record themselves, so call before visiting.
How can I verify Jason D. Welch, MD's license?
NPPES lists Wisconsin license number 47491-20, 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 Jason D. Welch, MD prescribe under Medicare Part D?
In 2024, Jason D. Welch, MD had 458 Medicare Part D claims for 167 beneficiaries; the average among hospitalist physician prescribers was 521. 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.