Gregory K. Hartig, MD
Otolaryngology Physician · Madison, WI
Gregory K. Hartig, MD is an otolaryngology physician with a practice address in Madison, Wisconsin, and NPI 1386608966, issued on Apr 12, 2006. Check the license (Wisconsin 35488-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Gregory K. Hartig
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 35488-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 600 Highland Avenue, Madison, WI 53792
- Phone
- (608) 263-6190
- Enumerated
- Apr 12, 2006
- Record last updated
- Jan 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (608) 263-6199
- Medicare enrollment
- Enrolled (PECOS I20100215000377); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 231 in Wisconsin → Look up another NPI →
Also registered at 600 Highland Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Meagan Adamsick, PHARMDPharmacist1184149841
- Sarah Affeldt, PACMedical Physician Assistant1508814351
- Ryan Anderson, PHARMDPharmacist1407371172
- Katherine Beach, PHARMDPharmacist1770199457
- Jared Paul BorlagdanPharmacist1750892535
- Randy Braun, PHARM D.Pharmacist1528512951
Verify Gregory K. Hartig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 35488-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average otolaryngology physician in 2024
337 Medicare Part D claims for 120 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Chlorhexidine Gluconate65 claims
- Famotidine41 claims
- Clindamycin Hcl35 claims
- Amoxicillin-Clavulanate Potass31 claims
- Lidocaine Hcl Viscous27 claims
- Oxycodone-Acetaminophen14 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
- University OF Wisconsin Medical Foundation IncPrairie Du Sac, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory K. Hartig among 231 otolaryngology physician records in Wisconsin
Gregory K. Hartig, MD is one of 231 otolaryngology physician records with a practice address in Wisconsin. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 45% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1988 · median 2004 among the 147 with a school on file
- Record last updated2021 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Wisconsin
There are 231 otolaryngology physician records in Wisconsin.
All 231 in Wisconsin → Every provider in Madison → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Jason Brant, MDMadison, WI 537921821223942
- Seth Dailey, MDMadison, WI 537921346204989
- Ruth DavisMadison, WI 537921023559374
- Charles Ford, MDMadison, WI 537921013972728
- David Francis, MD MSMadison, WI 537921154430072
- Tiffany Glazer, MDMadison, WI 537921629365135
- Ian Koszewski, M.D.Madison, WI 537921073872032
- Lucas Leonhard, M.D.Madison, WI 537921568825834
Common questions
What is Gregory K. Hartig, MD's NPI number?
Gregory K. Hartig, MD's National Provider Identifier (NPI) is 1386608966, issued on Apr 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory K. Hartig, MD located?
The NPPES record lists a practice address at 600 Highland Avenue, Madison, WI, 53792. Phone: (608) 263-6190. Providers update this record themselves, so call before visiting.
How can I verify Gregory K. Hartig, MD's license?
NPPES lists Wisconsin license number 35488-20, 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 Gregory K. Hartig, MD prescribe under Medicare Part D?
In 2024, Gregory K. Hartig, MD had 337 Medicare Part D claims for 120 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.