Dr. Thomas Carll Schermerhorn, MD

  • Grand Rapids, MI
  • Neurosurgeon
NPI1518962026PAC ID9436126331
Medicare services, 2024
90
Medicare patients, 2024
96
Part D claims, 2020
29
Publications
4
Hospital affiliations
2
Practice address
100 Michigan St NE, Grand Rapids, MI 49503
Practice phone
Call (616) 391-1774
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

See all 5 affiliations

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Dr. Thomas Carll Schermerhorn is a neurosurgeon in Grand Rapids, Michigan

Dr. Schermerhorn practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health.

Dr. Schermerhorn's NPI, 1518962026, was assigned on June 21, 2005. Dr. Schermerhorn graduated from Wayne State University School of Medicine in 1998. Dr. Schermerhorn holds Michigan license 4301083353.

NPI and contact details
Medicare PAC ID
9436126331
NPI enumeration date
June 21, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(616) 391-1774
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
54
Medical school graduation
1998

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Thomas Carll Schermerhorn practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan

Dr. Schermerhorn's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth, at 100 Michigan St NE, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 391-1774.

Source: Dmand AI Affiliation Data

Dr. Thomas Carll Schermerhorn is affiliated with 3 sites of care and 2 medical groups

Dr. Schermerhorn's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dr. Schermerhorn is also affiliated with Munson Medical Center. The medical group on file is University of Michigan Health. Dmand AI also links Dr. Schermerhorn to 1 more group practice or clinic and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Schermerhorn

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Thomas Carll Schermerhorn's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schermerhorn practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Corewell Health Grand Rapids Hospitals - ButterworthAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thomas Carll Schermerhorn is one of 256 neurosurgeons in Michigan

Neurological surgery is Dr. Schermerhorn's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Schermerhorn is licensed in Michigan.

Specialties and state licenses

  • Neurological surgery, MichiganPrimaryLicense 4301083353 · taxonomy 207T00000X

Neurosurgeons near Dr. Schermerhorn

Counts of neurosurgeons with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Thomas Carll Schermerhorn billed Medicare for 90 services in 2024

CMS data shows 90 Medicare services from Dr. Schermerhorn across 2 procedure codes in 2024, all of them office visits, for 96 Medicare patients. Medicare paid $6,308 for them. Every service was in an office.

Medicare services, 202490
Medicare patients96
Paid by Medicare$6,308
Procedure codes2

Dr. Schermerhorn's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1972024: 9054%
Surgery
2023: 112024: 0100%

Dr. Schermerhorn compared with the Michigan median for neurosurgeons, 2024

  • Dr. Schermerhorn
  • Michigan median
Medicare services
90vs 16244% below
Medicare patients
96vs 12221% below
Part D claims
29vs 3312% below

Medians across 219 neurosurgeons in Michigan with Dmand AI profiles that report each measure.

Dr. Schermerhorn's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Schermerhorn

Need commercial claims for Dr. Schermerhorn?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Schermerhorn and other neurosurgeons in Michigan.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Thomas Carll Schermerhorn treated 96 Medicare patients in 2024, average age 72

CMS counts 96 Medicare patients who saw Dr. Schermerhorn in 2024. The largest group is 65 to 74, with 42 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.52, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Schermerhorn's median patient age at 71, with 38% women.

Medicare patients, 202496
Average age72
Average risk score1.52

Dr. Schermerhorn's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Schermerhorn's Medicare patients by sex, 2024

  • Women4951%
  • Men4749%

Chronic conditions among Dr. Schermerhorn's Medicare patients, 2024

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes34%
  5. Mood disorders32%
  6. Chronic kidney disease27%
  7. Depression27%
  8. Ischemic heart disease27%

Share of Medicare patients with each condition. A patient can have several.

Dr. Schermerhorn's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women38%
  • Men62%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Thomas Carll Schermerhorn wrote 29 Medicare Part D claims in 2020

In 2020, Dr. Schermerhorn wrote 29 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $204 in total drug cost. In 2019, CMS named 24 claims across 1 drug.

Part D claims, 202029
Drugs named by CMS1
Total drug cost$204

Dr. Schermerhorn's most prescribed drugs by claims, 2020

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2019 to 2020

  • 2019
  • 2020
Claims for drugs CMS names
2019: 242020: 2921%

Drugs named by CMS: 1 in 2020, 1 in 2019.

See all prescribing by Dr. Schermerhorn

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

How Dr. Thomas Carll Schermerhorn takes part in Medicare

Dr. Schermerhorn accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Laminectomy or laminotomy (partial removal of spine bones): 1 to 10 procedures (CMS shows small counts as a range)

Spinal fusion: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

For MedTech and pharma teams

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Dr. Thomas Carll Schermerhorn has 4 publications on record

Dmand AI links 4 papers to Dr. Schermerhorn, published from 2014 to 2020. 2020 was the busiest year, with 2. Dr. Schermerhorn's most frequent co-authors are Badih Junior Junior Daou, MD, Todd Charles Hollon, MD and Jacob Rahul Rajiv Joseph, MD.

Papers4
Years published2014 to 2020

Dr. Schermerhorn's papers by year, 2014 to 2020

Dr. Schermerhorn's most frequent co-authors

Recent publications by Dr. Schermerhorn

See all 4 publications and co-authors

See who Dr. Schermerhorn researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Schermerhorn works with, so you can find a warm path to the right neurosurgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Thomas Carll Schermerhorn received $479 in industry payments from 2016 to 2024

CMS Open Payments shows 8 general payments to Dr. Schermerhorn from 6 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 96% of the total. Medtronic, Inc. paid the most, $320.

General payments to Dr. Schermerhorn by program year, 2016 to 2024

General payments to Dr. Schermerhorn by kind, 2016 to 2024

$479in total
  • Food and beverage$45996%
  • Education$204%

Companies that paid Dr. Schermerhorn the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Schermerhorn

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Thomas Carll Schermerhorn graduated from Wayne State University School of Medicine

Dr. Schermerhorn graduated from Wayne State University School of Medicine in 1998.

  1. Medical schoolWayne State University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Thomas Carll Schermerhorn's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Thomas Carll Schermerhorn

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Thomas Carll Schermerhorn's NPI number?

Dr. Thomas Carll Schermerhorn's NPI number is 1518962026. It was assigned on June 21, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Thomas Carll Schermerhorn?

Dr. Thomas Carll Schermerhorn is a neurosurgeon in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).

Where does Dr. Thomas Carll Schermerhorn practice?

Dr. Schermerhorn practices at 100 Michigan St NE, Grand Rapids, MI 49503. Dr. Schermerhorn's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dmand AI also links Dr. Schermerhorn to 1 group practice or clinic and 1 medical group.

What is Dr. Thomas Carll Schermerhorn's office phone number?

The practice phone on file for Dr. Schermerhorn is (616) 391-1774.

What is Dr. Thomas Carll Schermerhorn's medical license number?

Dr. Schermerhorn holds Michigan license 4301083353.

Which hospitals is Dr. Thomas Carll Schermerhorn affiliated with?

Dr. Schermerhorn practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan. Dr. Schermerhorn is also affiliated with Munson Medical Center.

What medical group is Dr. Thomas Carll Schermerhorn part of?

Dr. Schermerhorn is linked to University of Michigan Health. Dmand AI links Dr. Schermerhorn to 1 more medical group.

Does Dr. Thomas Carll Schermerhorn accept Medicare?

Yes. CMS data shows Dr. Schermerhorn billed Medicare for 90 services in 2024, and Dr. Schermerhorn accepts Medicare assignment.

How many Medicare patients does Dr. Thomas Carll Schermerhorn see?

CMS counts 96 Medicare patients who saw Dr. Schermerhorn in 2024, with an average age of 72.

What services does Dr. Thomas Carll Schermerhorn bill to Medicare?

In 2024, Dr. Schermerhorn's most billed Medicare services were office visit, new patient (99203) and office visit, established patient (99213).

Show 6 more questionsShow fewer questions

Where did Dr. Thomas Carll Schermerhorn go to medical school?

Dr. Schermerhorn graduated from Wayne State University School of Medicine in 1998.

What drugs does Dr. Thomas Carll Schermerhorn prescribe most?

In 2020 Medicare Part D data, Dr. Schermerhorn's most prescribed drugs by claims were Gabapentin.

Has Dr. Thomas Carll Schermerhorn received payments from drug or device companies?

CMS Open Payments shows $479 in general payments to Dr. Schermerhorn from 6 companies from 2016 to 2024. The largest total came from Medtronic, Inc.

How long has Dr. Thomas Carll Schermerhorn been practicing?

Dr. Schermerhorn graduated from medical school in 1998, 28 years ago.

Does Dr. Thomas Carll Schermerhorn do research?

Dmand AI links 4 publications to Dr. Schermerhorn, published from 2014 to 2020.

Who does Dr. Thomas Carll Schermerhorn publish with?

Dr. Schermerhorn's most frequent co-authors are Badih Junior Junior Daou, MD (1 shared paper), Todd Charles Hollon, MD (1 shared paper) and Jacob Rahul Rajiv Joseph, MD (1 shared paper).

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