NPPES file of Aug 9, 2026

Mark Geoffrey Loomus, M.D

Neurology Physician · Perrysburg, OH

Mark Geoffrey Loomus, M.D is a neurology physician with a practice address in Perrysburg, Ohio, and NPI 1821198599, issued on Sep 23, 2006. Check the license (Ohio 35059646, as entered in NPPES) on the State Medical Board of Ohio; 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
1821198599
Name
Mark Geoffrey Loomus
Credential
M.D
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
35059646 OH
4301049041 MI
Self-reported in NPPES; status is on the state search
Practice location
6175 Levis Commons Blvd # 104, Perrysburg, OH 43551
Phone
(419) 872-7246
Enumerated
Sep 23, 2006
Record last updated
Nov 5, 2025
Fax
(419) 872-3754
Medicaid ID
0789928 OH
Medicare enrollment
Enrolled (PECOS I20100813000062); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 1984
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 6175 Levis Commons Blvd # 104

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

  1. Sonika Gill-Ahluwalia, DOGastroenterology Physician1023579422
  2. Sara Hunter, CNPFamily Nurse Practitioner1902289028
  3. Abed RamadanFamily Nurse Practitioner1801467907

Verify Mark Geoffrey Loomus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 35059646
    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 Ohio 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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2.7 times the Medicare Part D claims of the average neurology physician in 2024

3,723 Medicare Part D claims for 434 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. 36 claims were for opioids.

  1. Mark Loomus3,723
  2. Specialty average1,370

Most prescribed

  1. Levetiracetam244 claims
  2. Gabapentin216 claims
  3. Tizanidine Hcl178 claims
  4. Amitriptyline Hcl165 claims
  5. Carbidopa-Levodopa113 claims
  6. Topiramate109 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: $974.88

66 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Loomus$974.88
  2. Specialty average$8,318.07

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. Promedica Central PhysiciansToledo, OH
  2. Promedica Multi Specialty PhysiciansToledo, OH

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

Mark Geoffrey Loomus among 789 neurology physician records in Ohio

Mark Geoffrey Loomus, M.D is one of 789 neurology physician records with a practice address in Ohio. 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 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 60% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated1984 · median 2005 among the 579 with a school on file
  • Record last updated2025 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Ohio

There are 789 neurology physician records in Ohio.

The 8 neurology physician records with the nearest ZIP codes

  1. Anna BitePerrysburg, OH 435511659786622
  2. Ted Barber, MDWauseon, OH 435671568460111
  3. Prasad PolicherlaDefiance, OH 435121619959665
  4. Jomana Al-Hinti, MDToledo, OH 436061881784361
  5. Imran Ali, M.D.Toledo, OH 436061922094960
  6. Lawrence Elmer, M.D.Toledo, OH 436061043206196
  7. Boyd Koffman, M.D.Toledo, OH 436061609862762
  8. Hongyan Li, M.D.Toledo, OH 436061891766341

Common questions

What is Mark Geoffrey Loomus, M.D's NPI number?

Mark Geoffrey Loomus, M.D's National Provider Identifier (NPI) is 1821198599, issued on Sep 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Geoffrey Loomus, M.D located?

The NPPES record lists a practice address at 6175 Levis Commons Blvd # 104, Perrysburg, OH, 43551. Phone: (419) 872-7246. Providers update this record themselves, so call before visiting.

How can I verify Mark Geoffrey Loomus, M.D's license?

NPPES lists Ohio license number 35059646, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Geoffrey Loomus, M.D prescribe under Medicare Part D?

In 2024, Mark Geoffrey Loomus, M.D had 3,723 Medicare Part D claims for 434 beneficiaries; the average among neurology physician prescribers was 1,370. 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.