NPPES file of Aug 9, 2026

Timothy Michael Lonergan, MD

Orthopaedic Foot and Ankle Surgery Physician · Washington, MO

Timothy Michael Lonergan, MD is an orthopaedic foot and ankle surgery physician with a practice address in Washington, Missouri, and NPI 1346683059, issued on Apr 11, 2013. Check the license (Missouri 2025014331, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1346683059
Name
Timothy Michael Lonergan
Credential
MD
Primary taxonomy
Orthopaedic Foot and Ankle Surgery Physician 207XX0004X
License numbers
2025014331 MO
52379 KY
Self-reported in NPPES; status is on the state search
Practice location
901 Patients First Dr Ste 1300, Washington, MO 63090
Phone
(636) 239-9011
Enumerated
Apr 11, 2013
Record last updated
Jul 14, 2025
Fax
(636) 239-0433
Medicare enrollment
Enrolled (PECOS I20180905003939); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 901 Patients First Dr Ste 1300

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Emily Beckerman, PA-SPhysician Assistant1750997268
  2. Tyler Boyet, D.O.Orthopaedic Surgery Physician1114473451
  3. Mitchel Kohnen, PA-CPhysician Assistant1427418417
  4. Hailee Taylor, DNP, FNP-CFamily Nurse Practitioner1467095356

Verify Timothy Michael Lonergan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2025014331
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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88% more Medicare Part D claims than the average orthopaedic foot and ankle surgery physician in 2024

422 Medicare Part D claims for 201 beneficiaries, against an average of 225 among the 648 providers of this specialty who prescribed in Part D. 170 claims were for opioids.

  1. Timothy Lonergan422
  2. Specialty average225

Most prescribed

  1. Hydrocodone-Acetaminophen118 claims
  2. Meloxicam69 claims
  3. Promethazine Hcl50 claims
  4. Oxycodone-Acetaminophen28 claims
  5. Diclofenac Sodium23 claims
  6. Ketorolac Tromethamine19 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: $2,101.60

24 payments; by number, the most common kind was food and beverage; the largest payer was Arthrex, Inc. The 643 providers of this specialty with any payment received $23,314.63 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Timothy Lonergan$2,102
  2. Specialty average$23,315

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

  1. Mercy Clinic Surgical Specialists LLCWashington, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Timothy Michael Lonergan among 17 orthopaedic foot and ankle surgery physician records in Missouri

Timothy Michael Lonergan, MD is one of 17 orthopaedic foot and ankle surgery physician records with a practice address in Missouri. 94% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 65% of them.

  • NPI issued2013 · 65% of these records are older, 24% newer
  • In a Medicare fileYes · 94% of these records are
  • In the CMS Doctors and Clinicians fileYes · 88% of these records are
  • Graduated2013 · median 2005 among the 15 with a school on file
  • Record last updated2025 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0004X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Foot and Ankle Surgery Physician providers in Missouri

There are 17 orthopaedic foot and ankle surgery physician records in Missouri.

The 8 orthopaedic foot and ankle surgery physician records with the nearest ZIP codes

  1. Megan Walters, M.D.Saint Louis, MO 631041710326467
  2. Jeffrey Johnson, MDSaint Louis, MO 631101275551699
  3. Jeremy McCormick, MDSaint Louis, MO 631101265585111
  4. Kelly Hynes, MDSaint Louis, MO 631411427505197
  5. Sandra Klein, MDSaint Louis, MO 631411619036878
  6. Joshua Nadaud, M.D.Saint Louis, MO 631411962653170
  7. Mitchell Tarka, M.D.Creve Coeur, MO 631411235661489
  8. Amar Patel, MDLees Summit, MO 640861841300571

Common questions

What is Timothy Michael Lonergan, MD's NPI number?

Timothy Michael Lonergan, MD's National Provider Identifier (NPI) is 1346683059, issued on Apr 11, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Timothy Michael Lonergan, MD located?

The NPPES record lists a practice address at 901 Patients First Dr Ste 1300, Washington, MO, 63090. Phone: (636) 239-9011. Providers update this record themselves, so call before visiting.

How can I verify Timothy Michael Lonergan, MD's license?

NPPES lists Missouri license number 2025014331, 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 Timothy Michael Lonergan, MD prescribe under Medicare Part D?

In 2024, Timothy Michael Lonergan, MD had 422 Medicare Part D claims for 201 beneficiaries; the average among orthopaedic foot and ankle surgery physician prescribers was 225. 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.