NPPES file of Aug 9, 2026

Gary L. Trock, MD

Neurology Physician · Royal Oak, MI

Gary L. Trock, MD is a neurology physician with a practice address in Royal Oak, Michigan, and NPI 1578547774, issued on Dec 1, 2005. Check the license (Michigan 4301042190, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578547774
Name
Gary L. Trock
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
4301042190 MI
Self-reported in NPPES; status is on the state search
Practice location
3555 W 13 Mile RD Ste N120, Royal Oak, MI 48073
Phone
(855) 863-8761
Enumerated
Dec 1, 2005
Record last updated
Oct 23, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(248) 551-9487
Medicaid ID
1333405 MI
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3555 W 13 Mile RD Ste N120

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

  1. Claire Aufdemberge, AUDAudiologist1033820642
  2. Marisa Badanjek, NP-CPrimary Care Nurse Practitioner1114153756
  3. Katherine Barta, NURSE PRACTITIONERAcute Care Nurse Practitioner1306435920
  4. Jacqueline Borland, AUDIOLOGISTAudiologist1568486157
  5. Jacqlene Bruno, PA-CPhysician Assistant1487917613
  6. Megan Clippard, NPNurse Practitioner1821392291

Verify Gary L. Trock 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 4301042190
    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

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91% fewer Medicare Part D claims than the average neurology physician in 2024

126 Medicare Part D claims, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Gary Trock126
  2. Specialty average1,370

Most prescribed

  1. Topiramate22 claims
  2. Divalproex Sodium17 claims
  3. Clonazepam13 claims
  4. Keppra12 claims
  5. Lamotrigine11 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 81 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score67.3
  2. Costout of 100 · 30%59.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Gary L. Trock among 739 neurology physician records in Michigan

Gary L. Trock, MD is one of 739 neurology physician records with a practice address in Michigan. 82% 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, 90% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2020 · 46% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Michigan

There are 739 neurology physician records in Michigan.

The 8 neurology physician records with the nearest ZIP codes

  1. Mohamad Alhakim, MDRoyal Oak, MI 480731306837018
  2. Nour Baki, M.D.Royal Oak, MI 480731831431915
  3. Raina Ernstoff, MDRoyal Oak, MI 480731346212214
  4. Basad Essa, MDRoyal Oak, MI 480731902193006
  5. Michelle Furmaga, MDRoyal Oak, MI 480731235178641
  6. Rebbeca Grysiewicz, D.O.Royal Oak, MI 480731982852794
  7. M. Ayman Haykal, MDRoyal Oak, MI 480731639362197
  8. Adil Khan, M.D.Royal Oak, MI 480731013335967

Common questions

What is Gary L. Trock, MD's NPI number?

Gary L. Trock, MD's National Provider Identifier (NPI) is 1578547774, issued on Dec 1, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gary L. Trock, MD located?

The NPPES record lists a practice address at 3555 W 13 Mile RD Ste N120, Royal Oak, MI, 48073. Phone: (855) 863-8761. Providers update this record themselves, so call before visiting.

How can I verify Gary L. Trock, MD's license?

NPPES lists Michigan license number 4301042190, 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 Gary L. Trock, MD prescribe under Medicare Part D?

In 2024, Gary L. Trock, MD had 126 Medicare Part D claims; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Gary L. Trock, MD's MIPS final score?

The 2023 MIPS final score is 81 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.