Katherine Hammerschmidt, APRN
Adult Health Nurse Practitioner · Saint Louis, MO
Katherine Hammerschmidt, APRN is an adult health nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1922517747, issued on Sep 25, 2017. Check the license (Missouri 2017028414, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Hammerschmidt
- Credential
- APRN
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- 2017028414 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Des Peres RD Ste 310, Saint Louis, MO 63131
- Phone
- (314) 821-1313
- Enumerated
- Sep 25, 2017
- Record last updated
- Sep 25, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20171019000883); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1000 Des Peres RD Ste 310
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ann Arcese, ANPGerontology Nurse Practitioner1982959466
- Laura Marchi, DNP, FNP-CFamily Nurse Practitioner1366850554
- Jessica WhitlockFamily Nurse Practitioner1295107506
Verify Katherine Hammerschmidt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2017028414Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average adult health nurse practitioner in 2024
2,654 Medicare Part D claims for 651 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium197 claims
- Amlodipine Besylate163 claims
- Losartan Potassium102 claims
- Levothyroxine Sodium89 claims
- Lisinopril83 claims
- Rosuvastatin Calcium73 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.
Industry payments in 2024: $237.75
12 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 12,291 providers of this specialty with any payment received $946.40 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.
Bills Medicare through one group practice
- Mercy Clinic East CommunitiesDes Peres, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
332 adult health nurse practitioner records list a practice address in Saint Louis
They are 332 of the 27,605 NPPES records with a practice address in Saint Louis, and 794 adult health nurse practitioner records in Missouri.
All 332 in Saint Louis → All 794 in Missouri → Every provider in Saint Louis →
Other adult health nurse practitioner records in Missouri
- Amber Abeln, ANPJefferson City, MO1720275027
- Elizabeth Abernathy, N.P.Saint Louis, MO1962680264
- Sammer AckermannLake Saint Louis, MO1760326425
- Kimberly Adams, ANPColumbia, MO1205172301
- Joni Ahern, NPColumbia, MO1033570205
- Elizabeth Aholt, ANP-CWashington, MO1568168623
- Laura Allen, N.P.Fenton, MO1760878839
- Jamie Anastas, ACNPSaint Louis, MO1174952089
- Taylor Anderson, AGNPSaint Louis, MO1639796899
- Jane Angle, ANPSaint Louis, MO1932617925
Common questions
What is Katherine Hammerschmidt, APRN's NPI number?
Katherine Hammerschmidt, APRN's National Provider Identifier (NPI) is 1922517747, issued on Sep 25, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Hammerschmidt, APRN located?
The NPPES record lists a practice address at 1000 Des Peres RD Ste 310, Saint Louis, MO, 63131. Phone: (314) 821-1313. Providers update this record themselves, so call before visiting.
How can I verify Katherine Hammerschmidt, APRN's license?
NPPES lists Missouri license number 2017028414, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Hammerschmidt, APRN prescribe under Medicare Part D?
In 2024, Katherine Hammerschmidt, APRN had 2,654 Medicare Part D claims for 651 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.