Patrick Grierson, MD
Medical Oncology Physician · Saint Louis, MO
Patrick Grierson, MD is a medical oncology physician with a practice address in Saint Louis, Missouri, and NPI 1720492192, issued on Jun 13, 2014. Check the license (Missouri 2017020379, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Patrick Grierson
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 2017020379 MO
Self-reported in NPPES; status is on the state search - Practice location
- 10 Barnes West Dr, Saint Louis, MO 63141
- Phone
- (800) 647-2098
- Enumerated
- Jun 13, 2014
- Record last updated
- Apr 17, 2025
- Fax
- (314) 362-3192
- Medicaid ID
- 200063712 MO
- Medicare enrollment
- Enrolled (PECOS I20191029000561); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 156 in Missouri → Look up another NPI →
Also registered at 10 Barnes West Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Omar Butt, MDMedical Oncology Physician1750731337
- David Carr, MDGeriatric Medicine (Internal Medicine) Physician1093733800
- Roberto Civitelli, MDEndocrinology, Diabetes & Metabolism Physician1194743872
- Charles Crecelius, MDGeriatric Medicine (Internal Medicine) Physician1215080312
Verify Patrick Grierson 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 2017020379Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% more Medicare Part D claims than the average medical oncology physician in 2024
1,386 Medicare Part D claims for 161 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 117 claims were for opioids.
Most prescribed
- Prochlorperazine Maleate139 claims
- Dexamethasone134 claims
- Ondansetron Hcl110 claims
- Gabapentin84 claims
- Loperamide67 claims
- Eliquis62 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): 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: $2,213.70
4 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 3,343 providers of this specialty with any payment received $11,773.47 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
- Washington UniversitySaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Patrick Grierson among 156 medical oncology physician records in Missouri
Patrick Grierson, MD is one of 156 medical oncology physician records with a practice address in Missouri. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 75% of them.
- NPI issued2014 · 75% of these records are older, 20% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2014 · median 2003 among the 127 with a school on file
- Record last updated2025 · 23% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Missouri
There are 156 medical oncology physician records in Missouri.
All 156 in Missouri → Every provider in Saint Louis → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Somasekhar Bandi, M.D.Saint Louis, MO 631411922034321
- Omar Butt, MDSaint Louis, MO 631411750731337
- Kavitha Kosuri, D.O.Saint Louis, MO 631411215981766
- Kian Lim, MDSaint Louis, MO 631411851597108
- Bethany Sleckman, M.D.Saint Louis, MO 631411861814386
- Wilbur Song, MDSaint Louis, MO 631411659997542
- Rama Suresh, MDSaint Louis, MO 631411093731226
- Dilan Patel, MDSaint Louis, MO 631361356757736
Common questions
What is Patrick Grierson, MD's NPI number?
Patrick Grierson, MD's National Provider Identifier (NPI) is 1720492192, issued on Jun 13, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Patrick Grierson, MD located?
The NPPES record lists a practice address at 10 Barnes West Dr, Saint Louis, MO, 63141. Phone: (800) 647-2098. Providers update this record themselves, so call before visiting.
How can I verify Patrick Grierson, MD's license?
NPPES lists Missouri license number 2017020379, 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 Patrick Grierson, MD prescribe under Medicare Part D?
In 2024, Patrick Grierson, MD had 1,386 Medicare Part D claims for 161 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Patrick Grierson, MD's MIPS final 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), 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.