Jacob Guest, MD
Internal Medicine Physician · Madison, WI
Jacob Guest, MD is an internal medicine physician with a practice address in Madison, Wisconsin, and NPI 1790421154, issued on May 9, 2022. Check the license (Wisconsin 100768851, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jacob Guest
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 100768851 WI
Self-reported in NPPES; status is on the state search - Practice location
- 600 Highland Ave, Madison, WI 53792
- Phone
- (608) 263-6400
- Enumerated
- May 9, 2022
- Record last updated
- Jun 19, 2024
- Entity
- Type 1 · individual
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Verify Jacob Guest in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 100768851Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
67 Medicare Part D claims for 22 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Jacob Guest among 2,078 internal medicine physician records in Wisconsin
Jacob Guest, MD is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 89% of them.
- NPI issued2022 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
417 internal medicine physician records list a practice address in Madison
They are 417 of the 15,014 NPPES records with a practice address in Madison, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Madison → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sabina Agrawal, D.O.Madison, WI 537921659336089
- Madelyn Alvarez, MDMadison, WI 537921063831717
- Will Bringgold, MD,MSMadison, WI 537921881048940
- Kenneth Coggins, M.D.Madison, WI 537921124415021
- Thomas HolobynMadison, WI 537921891114542
- Peter Kleinschmidt, M.D.Madison, WI 537921295153583
- Kristina Little, M.D.Madison, WI 537921558724914
- David Meyers, MDMadison, WI 537921245208271
Common questions
What is Jacob Guest, MD's NPI number?
Jacob Guest, MD's National Provider Identifier (NPI) is 1790421154, issued on May 9, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Jacob Guest, MD located?
The NPPES record lists a practice address at 600 Highland Ave, Madison, WI, 53792. Phone: (608) 263-6400. Providers update this record themselves, so call before visiting.
How can I verify Jacob Guest, MD's license?
NPPES lists Wisconsin license number 100768851, 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 Jacob Guest, MD prescribe under Medicare Part D?
In 2024, Jacob Guest, MD had 67 Medicare Part D claims for 22 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.