NPPES file of Aug 9, 2026

Mark Wells Kemp, DO

Internal Medicine Physician · South Haven, MI

Mark Wells Kemp, DO is an internal medicine physician with a practice address in South Haven, Michigan, and NPI 1053365064, issued on May 22, 2006. Check the license (Michigan 5101010415, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1053365064
Name
Mark Wells Kemp
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
5101010415 MI
Self-reported in NPPES; status is on the state search
Practice location
955 S Bailey Ave Ste 200, South Haven, MI 49090
Phone
(269) 639-2777
Enumerated
May 22, 2006
Record last updated
Jan 2, 2025
Medicaid IDs
4878533 MI
3409754 MI
4183150 MI
3381662 MI
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 955 S Bailey Ave Ste 200

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Teresa Ansinn, ANPAdult Health Nurse Practitioner1891185765
  2. Trisha Farrell, CNM, WHNP, MSAdvanced Practice Midwife1275508632
  3. Katherine Hampton, FNPFamily Nurse Practitioner1972258481
  4. Meghan Rzeszutko, FNPFamily Nurse Practitioner1427754621
  5. Amanda Sumerix, PHARMDAmbulatory Care Pharmacist1750128575

Verify Mark Wells Kemp in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 5101010415
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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80% fewer Medicare Part D claims than the average internal medicine physician in 2024

638 Medicare Part D claims for 86 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Mark Kemp638
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium39 claims
  2. Pantoprazole Sodium38 claims
  3. Rosuvastatin Calcium32 claims
  4. Eliquis31 claims
  5. Lisinopril28 claims
  6. Omeprazole28 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 67.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score66.9
  2. Costout of 100 · 30%24.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Mark Wells Kemp among 5,735 internal medicine physician records in Michigan

Mark Wells Kemp, DO is one of 5,735 internal medicine physician records with a practice address in Michigan. 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 60% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2025 · 54% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 internal medicine physician records list a practice address in South Haven

They are 3 of the 168 NPPES records with a practice address in South Haven, and 5,735 internal medicine physician records in Michigan.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Lori Dotson, MDSouth Haven, MI 490901639198179
  2. Ramon Urrea, M.D.South Haven, MI 490901952331613
  3. Bharat Vakharia, MDSturgis, MI 490911770523045
  4. Ashish Verma, M.D.Sturgis, MI 490911699735936
  5. Thomas Blok, M.D.Schoolcraft, MI 490871528233442
  6. Curtis Buchheit, M.D.Schoolcraft, MI 490871801864046
  7. Anna Grabowska-Chebes, M.D.Three Rivers, MI 490931831128677
  8. Kallanagouda Nandihalli, M.D.Three Rivers, MI 490931447232418

Common questions

What is Mark Wells Kemp, DO's NPI number?

Mark Wells Kemp, DO's National Provider Identifier (NPI) is 1053365064, issued on May 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Wells Kemp, DO located?

The NPPES record lists a practice address at 955 S Bailey Ave Ste 200, South Haven, MI, 49090. Phone: (269) 639-2777. Providers update this record themselves, so call before visiting.

How can I verify Mark Wells Kemp, DO's license?

NPPES lists Michigan license number 5101010415, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Wells Kemp, DO prescribe under Medicare Part D?

In 2024, Mark Wells Kemp, DO had 638 Medicare Part D claims for 86 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Mark Wells Kemp, DO's MIPS final score?

The 2023 MIPS final score is 67.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.