Dr. Thomas S. Ridder, MD
- Medicare services, 2024
- 75
- Medicare patients, 2024
- 78
- Part D claims, 2024
- 52
- Publications
- 11
- Hospital affiliations
- 4
- Practice address
- 1400 E Boulder St, Colorado Springs, CO 80909
- Practice phone
- Call (719) 365-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ridder's professional email, personal email and mobile number
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Dr. Thomas S. Ridder is a neurosurgeon in Colorado Springs, Colorado
Dr. Ridder practices at UCHealth Memorial Hospital Central in Colorado Springs, Colorado, part of UCHealth.
Dr. Ridder's NPI, 1487851838, was assigned on June 29, 2007. Dr. Ridder holds Colorado license DR-0053836.
- NPI
- 1487851838NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204074255
- NPI enumeration date
- June 29, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (719) 365-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas S. Ridder practices at UCHealth Memorial Hospital Central in Colorado Springs, Colorado
Dr. Ridder's primary practice is UCHealth Memorial Hospital Central, at 1400 E Boulder St, Colorado Springs, CO 80909 in El Paso County. The practice phone is (719) 365-5000.
- UCHealth Memorial Hospital Central1400 E Boulder St, Colorado Springs, CO 80909 · El Paso CountyPhone(719) 365-5000
Source: Dmand AI Affiliation Data
Dr. Thomas S. Ridder is affiliated with 4 sites of care and 2 medical groups
Dr. Ridder's primary practice is UCHealth Memorial Hospital Central in Colorado Springs, Colorado, part of UCHealth. Dr. Ridder is also affiliated with UCHealth Grandview Hospital. The medical group on file is University of Colorado Medicine (CU Medicine). Dmand AI also links Dr. Ridder to 2 more hospitals and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas S. Ridder's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ridder practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCHealth Memorial Hospital Central | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas S. Ridder is one of 143 neurosurgeons in Colorado
Neurological surgery is Dr. Ridder's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dmand AI has Dr. Ridder's licenses on file in 2 states: Colorado and Virginia.
Specialties and state licenses
- Neurological surgery, ColoradoPrimary
- Virginia license
Neurosurgeons near Dr. Ridder
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 S. Ridder billed Medicare for 75 services in 2024
CMS data shows 75 Medicare services from Dr. Ridder across 4 procedure codes in 2024, for 78 Medicare patients. Medicare paid $7,538 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ridder's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 592024: 7527%
Dr. Ridder compared with the Colorado median for neurosurgeons, 2024
- Dr. Ridder
- Colorado median
- Medicare services
- 75vs 13946% below
- Medicare patients
- 78vs 11331% below
- Part D claims
- 24vs 24Close to median
Medians across 126 neurosurgeons in Colorado with Dmand AI profiles that report each measure.
Dr. Ridder'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ridder and other neurosurgeons in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas S. Ridder treated 78 Medicare patients in 2024, average age 69
CMS counts 78 Medicare patients who saw Dr. Ridder in 2024. The largest group is 65 to 74, with 32 patients. 75% of them have arthritis, and 67% have high blood pressure. 21% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ridder's median patient age at 57, with 55% women.
Dr. Ridder's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ridder's Medicare patients by sex, 2024
- Women3849%
- Men4051%
Chronic conditions among Dr. Ridder's Medicare patients, 2024
- Arthritis75%
- High blood pressure67%
- High cholesterol64%
- Chronic kidney disease32%
- Mood disorders32%
- Anxiety31%
- Depression31%
- Ischemic heart disease29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ridder's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas S. Ridder wrote 52 Medicare Part D claims in 2024
In 2024, Dr. Ridder wrote 52 Medicare Part D claims for 20 patients. 100% of them were for generic drugs. CMS names the drug for 24 of them, across 2 drugs with 11 or more claims each, at $484 in total drug cost. In 2023, CMS named 58 claims across 3 drugs.
Dr. Ridder's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 582024: 2459%
Drugs named by CMS: 2 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Thomas S. Ridder ranks in the 56th percentile for laminectomy or laminotomy (partial removal of spine bones) in Medicare
Dr. Ridder accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ridder as offering telehealth. CMS counts 26 procedures of laminectomy or laminotomy (partial removal of spine bones) by Dr. Ridder, more than 56% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Ridder ranks in Medicare procedure volume
- Laminectomy or laminotomy (partial removal of spine bones)
- 56th percentile26 procedures
- Spinal fusion
- 42nd percentile26 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Thomas S. Ridder has 11 publications on record
Dmand AI links 11 papers to Dr. Ridder, published from 2012 to 2023. 2015 was the busiest year, with 3. The most frequent topics are Apoptosis, MAP Kinase Kinase 1 and Signal Transduction. Dr. Ridder has published most often in J Neurosurg Pediatr. Dr. Ridder's most frequent co-authors are Jennifer Lynn Rhodes, MD, Laura Z. Fenton, MD and Brooke M. French, MD.
Dr. Ridder's papers by year, 2012 to 2023
Topics Dr. Ridder writes about most
- Apoptosis
- MAP Kinase Kinase 1
- Signal Transduction
- Tomography, X-Ray Computed
Dr. Ridder's most frequent co-authors
- Jennifer Lynn Rhodes, MD2 shared papers
- Laura Z. Fenton, MD1 shared paper
- Brooke M. French, MD1 shared paper
Recent publications by Dr. Ridder
J Neurosurg Pediatr
Neurosurg Clin N Am
See who Dr. Ridder researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ridder works with, so you can find a warm path to the right neurosurgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas S. Ridder received $2,809 in industry payments from 2017 to 2025
CMS Open Payments shows 35 general payments to Dr. Ridder from 9 drug and device companies from 2017 to 2025. Travel and lodging make up the largest share, 74% of the total. Globus Medical, Inc. paid the most, $1,488.
General payments to Dr. Ridder by program year, 2017 to 2025
General payments to Dr. Ridder by kind, 2017 to 2025
- Travel and lodging$2,07074%
- Food and beverage$69525%
- Education$442%
Companies that paid Dr. Ridder the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Thomas S. Ridder's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors 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-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Thomas S. Ridder
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 S. Ridder's NPI number?
Dr. Thomas S. Ridder's NPI number is 1487851838. It was assigned on June 29, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas S. Ridder?
Dr. Thomas S. Ridder is a neurosurgeon in Colorado Springs, Colorado. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Thomas S. Ridder practice?
Dr. Ridder practices at 1400 E Boulder St, Colorado Springs, CO 80909. Dr. Ridder's primary practice is UCHealth Memorial Hospital Central in Colorado Springs, Colorado, part of UCHealth. Dmand AI also links Dr. Ridder to 2 hospitals and 1 medical group.
What is Dr. Thomas S. Ridder's office phone number?
The practice phone on file for Dr. Ridder is (719) 365-5000.
What is Dr. Thomas S. Ridder's medical license number?
Dr. Ridder holds Colorado license DR-0053836, one of the licenses on file in 2 states.
Which states has Dr. Thomas S. Ridder been licensed in?
Dmand AI has state licenses on file for Dr. Ridder in Colorado and Virginia.
Which hospitals is Dr. Thomas S. Ridder affiliated with?
Dr. Ridder practices at UCHealth Memorial Hospital Central in Colorado Springs, Colorado. Dr. Ridder is also affiliated with UCHealth Grandview Hospital. Dmand AI links Dr. Ridder to 2 more hospitals.
What medical group is Dr. Thomas S. Ridder part of?
Dr. Ridder is linked to University of Colorado Medicine (CU Medicine). Dmand AI links Dr. Ridder to 1 more medical group.
Does Dr. Thomas S. Ridder accept Medicare?
Yes. CMS data shows Dr. Ridder billed Medicare for 75 services in 2024, and Dr. Ridder accepts Medicare assignment.
Does Dr. Thomas S. Ridder offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ridder as offering telehealth services.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Thomas S. Ridder see?
CMS counts 78 Medicare patients who saw Dr. Ridder in 2024, with an average age of 69.
What services does Dr. Thomas S. Ridder bill to Medicare?
In 2024, Dr. Ridder's most billed Medicare services were office visit, established patient (99215), care management and other visits (99442) and office visit, new patient (99205).
What drugs does Dr. Thomas S. Ridder prescribe most?
In 2024 Medicare Part D data, Dr. Ridder's most prescribed drugs by claims were Cyclobenzaprine HCl and Gabapentin.
Has Dr. Thomas S. Ridder received payments from drug or device companies?
CMS Open Payments shows $2,809 in general payments to Dr. Ridder from 9 companies from 2017 to 2025. The largest total came from Globus Medical, Inc.
How long has Dr. Thomas S. Ridder been practicing?
Dr. Ridder graduated from medical school in 2007, 19 years ago.
Does Dr. Thomas S. Ridder do research?
Dmand AI links 11 publications to Dr. Ridder, published from 2012 to 2023.
Who does Dr. Thomas S. Ridder publish with?
Dr. Ridder's most frequent co-authors are Jennifer Lynn Rhodes, MD (2 shared papers), Laura Z. Fenton, MD (1 shared paper) and Brooke M. French, MD (1 shared paper).
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