David Aaron Russler-Germain, MD PHD
Medical Oncology Physician · Saint Louis, MO
David Aaron Russler-Germain, MD PHD is a medical oncology physician with a practice address in Saint Louis, Missouri, and NPI 1821518036, issued on Jun 20, 2017. Check the license (Missouri 2020031487, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- David Aaron Russler-Germain
- Credential
- MD PHD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 2020031487 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
- Phone
- (314) 454-8304
- Enumerated
- Jun 20, 2017
- Record last updated
- Apr 27, 2026
- Fax
- (314) 454-5902
- Medicaid ID
- 200061280 MO
- Medicare enrollment
- Enrolled (PECOS I20230802004079); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 156 in Missouri → Look up another NPI →
Also registered at 1 Barnes Jewish Hospital Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ramzi Abboud, MDMedical Oncology Physician1649684200
- Amy Abdalla, MDRadiation Oncology Physician1932959954
- Heba Abdelal, MDAnatomic Pathology & Clinical Pathology Physician1033633383
- Ali Abdelhay, MDHospitalist Physician1619540606
Verify David Aaron Russler-Germain 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 2020031487Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average medical oncology physician in 2024
171 Medicare Part D claims for 33 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Acyclovir52 claims
- Prednisone23 claims
- Sulfamethoxazole-Trimethoprim16 claims
- Imbruvica11 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: $11,325.91
9 payments; by number, the most common kind was travel and lodging; the largest payer was Merck Sharp & Dohme LLC. 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).
David Aaron Russler-Germain among 156 medical oncology physician records in Missouri
David Aaron Russler-Germain, MD PHD 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 2017, is newer than 86% of them.
- NPI issued2017 · 86% of these records are older, 9% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2017 · median 2003 among the 127 with a school on file
- Record last updated2026 · 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
- Maria Baggstrom, MDSaint Louis, MO 631101679599971
- Milan Chheda, MDSaint Louis, MO 631101902852494
- Ramaswamy Govindan, MDSaint Louis, MO 631101023034261
- Brad Kahl, MDSaint Louis, MO 631101407822430
- Timothy Ley, MDSaint Louis, MO 631101447278874
- Cynthia Ma, MDSaint Louis, MO 631101104842400
- Loren Michel, MDSaint Louis, MO 631101306862545
- Daniel Morgensztern, MDSaint Louis, MO 631101154379915
Common questions
What is David Aaron Russler-Germain, MD PHD's NPI number?
David Aaron Russler-Germain, MD PHD's National Provider Identifier (NPI) is 1821518036, issued on Jun 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is David Aaron Russler-Germain, MD PHD located?
The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (314) 454-8304. Providers update this record themselves, so call before visiting.
How can I verify David Aaron Russler-Germain, MD PHD's license?
NPPES lists Missouri license number 2020031487, 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 David Aaron Russler-Germain, MD PHD prescribe under Medicare Part D?
In 2024, David Aaron Russler-Germain, MD PHD had 171 Medicare Part D claims for 33 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is David Aaron Russler-Germain, MD PHD'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.