Clark W. Likness, MD
Family Medicine Physician · Watertown, SD
Clark W. Likness, MD is a family medicine physician with a practice address in Watertown, South Dakota, and NPI 1760449284, issued on Apr 27, 2006. Check the license (South Dakota 2415, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Clark W. Likness
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 2415 SD
Self-reported in NPPES; status is on the state search - Practice location
- 506 1St Ave SE, Watertown, SD 57201
- Phone
- (605) 886-8482
- Enumerated
- Apr 27, 2006
- Record last updated
- Sep 4, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (605) 884-4300
- Medicaid ID
- 5600964 SD
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 601 in South Dakota → Look up another NPI →
Also registered at 506 1St Ave SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adrienne Bak, NPFamily Nurse Practitioner1316739550
- Heidi Barber, CNPNurse Practitioner1831709369
- Lindsey Barthel, NP-CFamily Nurse Practitioner1689957565
- Kristina Boetel, CNPNurse Practitioner1184192650
- David Carlson, MDFamily Medicine Physician1114985132
- Bailley Danforth, PA-CPhysician Assistant1184348807
Verify Clark W. Likness in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
Search for license 2415Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
37 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Famotidine12 claims
- Losartan Potassium12 claims
- Potassium Chloride12 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.
Clark W. Likness among 601 family medicine physician records in South Dakota
Clark W. Likness, MD is one of 601 family medicine physician records with a practice address in South Dakota. 79% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 47% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2008 · 52% 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 South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 family medicine physician records list a practice address in Watertown
They are 21 of the 543 NPPES records with a practice address in Watertown, and 601 family medicine physician records in South Dakota.
All 601 in South Dakota → Every provider in Watertown → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- David Carlson, MDWatertown, SD 572011114985132
- William Devine, MDWatertown, SD 572011376522854
- Allison Geier, MDWatertown, SD 572011629290440
- Kenneth Johnson, MDWatertown, SD 572011306825864
- Gregory Larson, MDWatertown, SD 572011629036645
- Thomas Lechner, MDWatertown, SD 572011053377556
- Stacie Lenssen, MDWatertown, SD 572011215994769
- Jonathan McAreavey, MDWatertown, SD 572011730147125
Common questions
What is Clark W. Likness, MD's NPI number?
Clark W. Likness, MD's National Provider Identifier (NPI) is 1760449284, issued on Apr 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Clark W. Likness, MD located?
The NPPES record lists a practice address at 506 1St Ave SE, Watertown, SD, 57201. Phone: (605) 886-8482. Providers update this record themselves, so call before visiting.
How can I verify Clark W. Likness, MD's license?
NPPES lists South Dakota license number 2415, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Clark W. Likness, MD prescribe under Medicare Part D?
In 2024, Clark W. Likness, MD had 37 Medicare Part D claims; 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.