NPPES file of Aug 9, 2026

Leo R. Toomajian, DO

Internal Medicine Physician · Shelby Township, MI

Leo R. Toomajian, DO is an internal medicine physician with a practice address in Shelby Township, Michigan, and NPI 1477649762, issued on Oct 5, 2006. Check the license (Michigan 5101013653, as entered in NPPES) on the Michigan Board of Medicine (LARA); 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
1477649762
Name
Leo R. Toomajian
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
5101013653 MI
Self-reported in NPPES; status is on the state search
Practice location
50505 Schoenherr RD, Shelby Township, MI 48315
Phone
(586) 726-5566
Enumerated
Oct 5, 2006
Record last updated
Dec 22, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(586) 726-8085
Medicaid ID
4351425 MI
Medicare enrollment
Enrolled (PECOS I20110912000719); accepts Medicare assignment
Medical or professional school
Des Moines University Of Osteopathic Medicine And Health Sciences, 1997
Telehealth
Offers telehealth (CMS)
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 50505 Schoenherr RD

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

  1. Shawkat Ahmed, D.O.Hospitalist Physician1558657551
  2. Bryan Barnosky, D.O.Pulmonary Disease Physician1073726329
  3. Stephanie Bazydlo, RDRegistered Dietitian1639594799
  4. Ciara BraunCounselor1003222902
  5. Matthew Clune, DOInternal Medicine Physician1457001216
  6. Patricia Deloof, M.D.Hospitalist Physician1245234509

Verify Leo R. Toomajian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 5101013653
    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 Michigan 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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2.9 times the Medicare Part D claims of the average internal medicine physician in 2024

9,071 Medicare Part D claims for 627 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 132 claims were for opioids.

  1. Leo Toomajian9,071
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium564 claims
  2. Levothyroxine Sodium459 claims
  3. Losartan Potassium427 claims
  4. Omeprazole372 claims
  5. Lisinopril343 claims
  6. Amlodipine Besylate305 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: $966.19

55 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. 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.

  1. Leo Toomajian$966.19
  2. Specialty average$1,303.06

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

  1. Henry Ford Physician PartnersShelby Twp, MI
  2. Powerback Rehabilitation LLCClinton Twp, MI

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

Leo R. Toomajian among 5,735 internal medicine physician records in Michigan

Leo R. Toomajian, DO is one of 5,735 internal medicine physician records with a practice address in Michigan. 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 60% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1997 · median 2006 among the 3,564 with a school on file
  • Record last updated2020 · 54% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 internal medicine physician records list a practice address in Shelby Township

They are 13 of the 1,151 NPPES records with a practice address in Shelby Township, and 5,735 internal medicine physician records in Michigan.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Malaz Alatassi, M.D.Shelby Township, MI 483151023069770
  2. William Carion, MDShelby Township, MI 483151558456251
  3. Matthew Clune, DOShelby Township, MI 483151457001216
  4. Michael Di Loreto, M.D.Shelby Township, MI 483151275882334
  5. Grant Lange, DOShelby Township, MI 483151427051127
  6. Antonio Morreale, M.D.Shelby Township, MI 483151609868520
  7. Thomas Piazza, M.D.Shelby Township, MI 483151548252471
  8. Ronald Pierskalla, M.D.Shelby Township, MI 483151700878618

Common questions

What is Leo R. Toomajian, DO's NPI number?

Leo R. Toomajian, DO's National Provider Identifier (NPI) is 1477649762, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Leo R. Toomajian, DO located?

The NPPES record lists a practice address at 50505 Schoenherr RD, Shelby Township, MI, 48315. Phone: (586) 726-5566. Providers update this record themselves, so call before visiting.

How can I verify Leo R. Toomajian, DO's license?

NPPES lists Michigan license number 5101013653, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Leo R. Toomajian, DO prescribe under Medicare Part D?

In 2024, Leo R. Toomajian, DO had 9,071 Medicare Part D claims for 627 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.