Katherine Holzem, MD
Surgery Physician · Saint Louis, MO
Katherine Holzem, MD is a surgery physician with a practice address in Saint Louis, Missouri, and NPI 1861912529, issued on Jun 23, 2017. Check the license (Missouri 2022038986, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Katherine Holzem
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 2022038986 MO
Self-reported in NPPES; status is on the state search - Practice location
- 915 N Grand Blvd, Saint Louis, MO 63106
- Phone
- (314) 652-4100
- Enumerated
- Jun 23, 2017
- Entity
- Type 1 · individual
Also registered at 915 N Grand Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nagla Abdelmalek, M.D.Emergency Medicine Physician1003847591
- Stephanie AdamsRegistered Nurse1003755810
- Jessica Addai, RNRegistered Nurse1225475171
- Bernadette Addison-TannerCase Management Registered Nurse1750143566
- Oluwafunmilayo Adebayo-Adonis, MDCritical Care Medicine (Anesthesiology) Physician1437593613
- Oluwatoyin Adegboyega, FNPFamily Nurse Practitioner1932724614
Verify Katherine Holzem in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2022038986Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
66% fewer Medicare Part D claims than the average surgery physician in 2024
60 Medicare Part D claims for 25 beneficiaries, against an average of 174 among the 21,427 providers of this specialty who prescribed in Part D.
Most prescribed
- Clopidogrel14 claims
- Cilostazol13 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 Medicare quality score for 2023: 79.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $77.13
3 payments, mostly food and beverage; the largest payer was ShockWave Medical, Inc. The 19,002 providers of this specialty with any payment received $3,758.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Surgery Physician providers in Missouri
There are 756 surgery physician records in Missouri.
Other surgery physician records in Missouri
- Tsehay Abebe, MDSaint Louis, MO1184285017
- John Adams, M.D.Columbia, MO1710981444
- Pauline Aherrera, MDColumbia, MO1083281893
- Ola Ahmed, MDSt Louis, MO1992541346
- Tauqir Ahmed, MDBridgeton, MO1336252204
- Yazan Al-Kharabsheh, MDColumbia, MO1992692081
- Emily Albright, M.D.Columbia, MO1407942352
- Mounes Aliyari Ghasabeh, MDColumbia, MO1114540325
- Steven Allen, MDColumbia, MO1326259615
- Samantha Alsop, MDKansas City, MO1023301413
Common questions
What is Katherine Holzem, MD's NPI number?
Katherine Holzem, MD's National Provider Identifier (NPI) is 1861912529, issued on Jun 23, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Holzem, MD located?
The NPPES record lists a practice address at 915 N Grand Blvd, Saint Louis, MO, 63106. Phone: (314) 652-4100. Providers update this record themselves, so call before visiting.
How can I verify Katherine Holzem, MD's license?
NPPES lists Missouri license number 2022038986, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Holzem, MD prescribe under Medicare Part D?
In 2024, Katherine Holzem, MD had 60 Medicare Part D claims for 25 beneficiaries; the average among surgery physician prescribers was 174. Part D covers Medicare prescriptions only.
What is Katherine Holzem, MD's Medicare quality score?
The 2023 MIPS final score is 79.3 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.