Richard J. Leahy, D.O.
Family Medicine Physician · Saint Peters, MO
Richard J. Leahy, D.O. is a family medicine physician with a practice address in Saint Peters, Missouri, and NPI 1114991643, issued on Feb 13, 2006. Check the license (Missouri R8J43, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Richard J. Leahy
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- R8J43 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1600 Heritage Lndg, Saint Peters, MO 63303
- Phone
- (636) 939-4200
- Enumerated
- Feb 13, 2006
- Record last updated
- May 24, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (636) 939-4204
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,991 in Missouri → Look up another NPI →
Also registered at 1600 Heritage Lndg
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Katherine Dorwart, MA, LPCMental Health Counselor1437516283
- Jennifer Kinsella, MA, LPCProfessional Counselor1124431473
- Timothy Larson, DDSDentist1467594283
Verify Richard J. Leahy 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 R8J43Check 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 family medicine physician in 2024
7,319 Medicare Part D claims for 434 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 230 claims were for opioids.
Most prescribed
- Atorvastatin Calcium425 claims
- Alprazolam345 claims
- Amlodipine Besylate270 claims
- Lisinopril254 claims
- Omeprazole238 claims
- Levothyroxine Sodium200 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: $19.06
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 55,478 providers of this specialty with any payment received $902.55 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.
Richard J. Leahy among 2,991 family medicine physician records in Missouri
Richard J. Leahy, D.O. is one of 2,991 family medicine physician records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 52% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2016 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 family medicine physician records list a practice address in Saint Peters
They are 27 of the 1,259 NPPES records with a practice address in Saint Peters, and 2,991 family medicine physician records in Missouri.
All 2,991 in Missouri → Every provider in Saint Peters → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Pamela Buchanan, M.D.Saint Charles, MO 633031164633111
- Natan Khotianov, MDSaint Charles, MO 633031801903463
- Haikun Li, MDSaint Charles, MO 633031437373834
- Steven Livingstone, D.O.Saint Charles, MO 633031013981109
- Ann Lottes, M.D.Saint Charles, MO 633031588015424
- Eric Martin, D.O.Saint Charles, MO 633031104276310
- Elizabeth Maylack, D.O.Saint Charles, MO 633031154687077
- Eric Nalagan, M.D.Saint Charles, MO 633031033287610
Common questions
What is Richard J. Leahy, D.O.'s NPI number?
Richard J. Leahy, D.O.'s National Provider Identifier (NPI) is 1114991643, issued on Feb 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard J. Leahy, D.O. located?
The NPPES record lists a practice address at 1600 Heritage Lndg, Saint Peters, MO, 63303. Phone: (636) 939-4200. Providers update this record themselves, so call before visiting.
How can I verify Richard J. Leahy, D.O.'s license?
NPPES lists Missouri license number R8J43, 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 Richard J. Leahy, D.O. prescribe under Medicare Part D?
In 2024, Richard J. Leahy, D.O. had 7,319 Medicare Part D claims for 434 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.