Robert T. Key, MD
Family Medicine Physician · Prairie Du Chien, WI
Robert T. Key, MD is a family medicine physician with a practice address in Prairie Du Chien, Wisconsin, and NPI 1801886312, issued on Oct 26, 2005. Check the license (Wisconsin 39079, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Robert T. Key
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 39079 WI
Self-reported in NPPES; status is on the state search - Practice location
- 800 E Blackhawk Ave, Prairie Du Chien, WI 53821
- Phone
- (608) 326-0808
- Enumerated
- Oct 26, 2005
- Record last updated
- Sep 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (608) 326-0810
- Medicare enrollment
- Enrolled (PECOS I20100630000493); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1996
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 800 E Blackhawk Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Dehart, MDFamily Medicine Physician1912997438
- Joshua Gerrity, LICSWClinical Social Worker1609262211
- Dixie Jackson, LPCProfessional Counselor1396917266
- Lynette KansierMental Health Counselor1275028953
- Michael Rogge, MDFamily Medicine Physician1023008539
- Colleen Teynor, MS, LCSWClinical Social Worker1386922144
Verify Robert T. Key in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 39079Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% more Medicare Part D claims than the average family medicine physician in 2024
6,014 Medicare Part D claims for 339 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 84 claims were for opioids.
Most prescribed
- Amlodipine Besylate359 claims
- Atorvastatin Calcium279 claims
- Rosuvastatin Calcium210 claims
- Lisinopril205 claims
- Levothyroxine Sodium187 claims
- Metoprolol Succinate168 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
- Mayo Clinic Health System-Southwest Wisconsin Region IncOnalaska, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert T. Key among 3,765 family medicine physician records in Wisconsin
Robert T. Key, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1996 · 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).
15 family medicine physician records list a practice address in Prairie Du Chien
They are 15 of the 150 NPPES records with a practice address in Prairie Du Chien, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Prairie Du Chien → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Stacy Blackburn, D.O.Prairie Du Chien, WI 538211952551525
- Walter Boisvert, MDPrairie Du Chien, WI 538211003810821
- David Dehart, MDPrairie Du Chien, WI 538211912997438
- Evelyn Frederick, DOPrairie Du Chien, WI 538211790487700
- Mark Grunwald, MDPrairie Du Chien, WI 538211336144914
- Ann Grunwald, MDPrairie Du Chien, WI 538211174528756
- James Jordan, MDPrairie Du Chien, WI 538211811962574
- Kurt Jorgensen, MDPrairie Du Chien, WI 538211467458844
Common questions
What is Robert T. Key, MD's NPI number?
Robert T. Key, MD's National Provider Identifier (NPI) is 1801886312, issued on Oct 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert T. Key, MD located?
The NPPES record lists a practice address at 800 E Blackhawk Ave, Prairie Du Chien, WI, 53821. Phone: (608) 326-0808. Providers update this record themselves, so call before visiting.
How can I verify Robert T. Key, MD's license?
NPPES lists Wisconsin license number 39079, 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 Robert T. Key, MD prescribe under Medicare Part D?
In 2024, Robert T. Key, MD had 6,014 Medicare Part D claims for 339 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.