James S. Compton, M.D.
Internal Medicine Physician · Saint Louis, MO
James S. Compton, M.D. is an internal medicine physician with a practice address in Saint Louis, Missouri, and NPI 1336133321, issued on Sep 6, 2005. Check the license (Missouri R2D22, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- James S. Compton
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- R2D22 MO
Self-reported in NPPES; status is on the state search - Practice location
- 3915 Watson RD, Saint Louis, MO 63109
- Phone
- (314) 881-0300
- Enumerated
- Sep 6, 2005
- Record last updated
- Mar 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (314) 881-0321
- Medicaid ID
- 202106522 MO
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 3915 Watson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James S. Compton 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 R2D22Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average internal medicine physician in 2024
9,513 Medicare Part D claims for 754 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 189 claims were for opioids.
Most prescribed
- Atorvastatin Calcium871 claims
- Losartan Potassium484 claims
- Amlodipine Besylate411 claims
- Lisinopril409 claims
- Levothyroxine Sodium322 claims
- Hydrochlorothiazide270 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: $139.07
7 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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.
James S. Compton among 2,604 internal medicine physician records in Missouri
James S. Compton, M.D. is one of 2,604 internal medicine physician records with a practice address in Missouri. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2021 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
941 internal medicine physician records list a practice address in Saint Louis
They are 941 of the 27,605 NPPES records with a practice address in Saint Louis, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Saint Louis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jaime Aguinaldo, MDSaint Louis, MO 631091407955099
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- Scott Kirchner, MDSaint Louis, MO 631091811981715
- Patrick McCann, MDSt Louis, MO 631091437275963
- Andrea Philip, MDSaint Louis, MO 631091063098713
- Arjun Singh, M.D.Saint Louis, MO 631091780619957
- William Summers, MDSaint Louis, MO 631091265471650
Common questions
What is James S. Compton, M.D.'s NPI number?
James S. Compton, M.D.'s National Provider Identifier (NPI) is 1336133321, issued on Sep 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James S. Compton, M.D. located?
The NPPES record lists a practice address at 3915 Watson RD, Saint Louis, MO, 63109. Phone: (314) 881-0300. Providers update this record themselves, so call before visiting.
How can I verify James S. Compton, M.D.'s license?
NPPES lists Missouri license number R2D22, 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 James S. Compton, M.D. prescribe under Medicare Part D?
In 2024, James S. Compton, M.D. had 9,513 Medicare Part D claims for 754 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.