Kenneth M. Johnson, MD
Family Medicine Physician · Watertown, SD
Kenneth M. Johnson, MD is a family medicine physician with a practice address in Watertown, South Dakota, and NPI 1306825864, issued on Jan 12, 2006. Check the license (South Dakota 1375, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Kenneth M. Johnson
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 1375 SD
Self-reported in NPPES; status is on the state search - Practice location
- 901 4TH St NW, Watertown, SD 57201
- Phone
- (605) 886-8471
- Enumerated
- Jan 12, 2006
- Record last updated
- Oct 27, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (605) 886-9317
- Medicaid ID
- 5609073 SD
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 601 in South Dakota → Look up another NPI →
Also registered at 901 4TH St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kenneth M. Johnson 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 1375Check 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 family medicine physician in 2024
80 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin22 claims
- Atorvastatin Calcium11 claims
- Tamsulosin Hcl11 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.
Kenneth M. Johnson among 601 family medicine physician records in South Dakota
Kenneth M. Johnson, 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 updated2014 · 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
- Gregory Larson, MDWatertown, SD 572011629036645
- Thomas Lechner, MDWatertown, SD 572011053377556
- Stacie Lenssen, MDWatertown, SD 572011215994769
- Clark Likness, MDWatertown, SD 572011760449284
- Jonathan McAreavey, MDWatertown, SD 572011730147125
Common questions
What is Kenneth M. Johnson, MD's NPI number?
Kenneth M. Johnson, MD's National Provider Identifier (NPI) is 1306825864, issued on Jan 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth M. Johnson, MD located?
The NPPES record lists a practice address at 901 4TH St NW, Watertown, SD, 57201. Phone: (605) 886-8471. Providers update this record themselves, so call before visiting.
How can I verify Kenneth M. Johnson, MD's license?
NPPES lists South Dakota license number 1375, 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 Kenneth M. Johnson, MD prescribe under Medicare Part D?
In 2024, Kenneth M. Johnson, MD had 80 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.