Alfred Dennyson Nelson, MD
Gastroenterology Physician · Saint Peters, MO
Alfred Dennyson Nelson, MD is a gastroenterology physician with a practice address in Saint Peters, Missouri, and NPI 1518329770, issued on Mar 25, 2016. Check the license (Missouri 20240137136, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Alfred Dennyson Nelson
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 20240137136 MO
ME138983 FL
Self-reported in NPPES; status is on the state search - Practice location
- 70 Jungermann Cir Ste 201, Saint Peters, MO 63376
- Phone
- (636) 916-9615
- Enumerated
- Mar 25, 2016
- Record last updated
- Sep 17, 2025
- Medicare enrollment
- Enrolled (PECOS I20240710000811); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 414 in Missouri → Look up another NPI →
Also registered at 70 Jungermann Cir Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amelia Aubuchon, FNP-CNurse Practitioner1881246908
- Anuj Chhaparia, M.D.Gastroenterology Physician1457747859
- James Dimitroff, MDGastroenterology Physician1376632018
- Jessica Levin, NP-CNurse Practitioner1952898348
- Sejal Patel, FNPNurse Practitioner1972654184
Verify Alfred Dennyson Nelson 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 20240137136Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average gastroenterology physician in 2024
77 Medicare Part D claims for 62 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole20 claims
- Gavilyte-G19 claims
- Gavilyte-C14 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): 78 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: $28.96
1 payment: food and beverage; the largest payer was Medtronic, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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 2 group practices
- Physician Groups LCSaint Peters, MO
- Ssm Health Care GroupSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alfred Dennyson Nelson among 414 gastroenterology physician records in Missouri
Alfred Dennyson Nelson, MD is one of 414 gastroenterology physician records with a practice address in Missouri. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 84% of them.
- NPI issued2016 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2012 · median 2003 among the 303 with a school on file
- Record last updated2025 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Missouri
There are 414 gastroenterology physician records in Missouri.
All 414 in Missouri → Every provider in Saint Peters → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Harry Burack, MDSaint Peters, MO 633761801909684
- Anuj Chhaparia, M.D.Saint Peters, MO 633761457747859
- Robert Cusworth, MDSaint Peters, MO 633761255339560
- James Dimitroff, MDSaint Peters, MO 633761376632018
- Richard Geisman, M.D.Saint Peters, MO 633761265430516
- Jennifer Palagiri, M.D.Troy, MO 633791063615284
- Ayooluwatomiwa Adekunle, MDO Fallon, MO 633681619593779
- Eldad Bialecki, M.D.O Fallon, MO 633681003952458
Common questions
What is Alfred Dennyson Nelson, MD's NPI number?
Alfred Dennyson Nelson, MD's National Provider Identifier (NPI) is 1518329770, issued on Mar 25, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Alfred Dennyson Nelson, MD located?
The NPPES record lists a practice address at 70 Jungermann Cir Ste 201, Saint Peters, MO, 63376. Phone: (636) 916-9615. Providers update this record themselves, so call before visiting.
How can I verify Alfred Dennyson Nelson, MD's license?
NPPES lists Missouri license number 20240137136, 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 Alfred Dennyson Nelson, MD prescribe under Medicare Part D?
In 2024, Alfred Dennyson Nelson, MD had 77 Medicare Part D claims for 62 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Alfred Dennyson Nelson, MD's MIPS final score?
The 2023 MIPS final score is 78 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.