Dr. Daniel T. Mattson, MD
- Medicare services, 2024
- 1,052
- Medicare patients, 2024
- 464
- Part D claims, 2024
- 5,877
- Hospital affiliations
- 5
- Industry payments
- $595,881
- Practice address
- 300 Medical Plz, Lake Saint Louis, MO 63367
- Practice phone
- Call (636) 496-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
SSM Health Medical Group
Lake Saint Louis, Missouri
Find Dr. Mattson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Daniel T. Mattson is a neurologist in Lake Saint Louis, Missouri
Dr. Mattson practices at SSM Health Medical Group in Lake Saint Louis, Missouri.
Dr. Mattson's NPI, 1447237870, was assigned on December 28, 2005. Dr. Mattson graduated from University of Missouri, Columbia School of Medicine in 2000. Dr. Mattson holds Missouri license 2004003731.
- NPI
- 1447237870NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143269910
- NPI enumeration date
- December 28, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (636) 496-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel T. Mattson practices at SSM Health Medical Group in Lake Saint Louis, Missouri
Dr. Mattson's primary practice is SSM Health Medical Group, at 300 Medical Plz, Lake Saint Louis, MO 63367 in Saint Charles County. The practice phone is (636) 496-5000.
- SSM Health Medical Group300 Medical Plz, Lake Saint Louis, MO 63367 · Saint Charles CountyPhone(636) 496-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Daniel T. Mattson is affiliated with 7 sites of care and 1 medical group
Dr. Mattson's primary practice is SSM Health Medical Group in Lake Saint Louis, Missouri. Dr. Mattson is also affiliated with SSM Health St. Joseph Hospital - Lake Saint Louis. The medical group on file is SSM Health Medical Group. Dmand AI also links Dr. Mattson to 4 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Daniel T. Mattson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mattson practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| SSM Health Medical Group | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel T. Mattson is one of 403 neurologists in Missouri
Neurology is Dr. Mattson's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dmand AI has Dr. Mattson's licenses on file in 2 states: Missouri and Illinois.
Specialties and state licenses
- Neurology, MissouriPrimary
- Illinois license
Neurologists near Dr. Mattson
Counts of neurologists 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. Daniel T. Mattson billed Medicare for 1,052 services in 2024
CMS data shows 1,052 Medicare services from Dr. Mattson across 14 procedure codes in 2024, for 464 Medicare patients. Medicare paid $77,714 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mattson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5792024: 5279%
- Tests and treatments
- 2023: 5062024: 5254%
Dr. Mattson compared with the Missouri median for neurologists, 2024
- Dr. Mattson
- Missouri median
- Medicare services
- 1,052vs 3732.8 times
- Medicare patients
- 464vs 2132.2 times
- Part D claims
- 5,603vs 26521.1 times
Medians across 392 neurologists in Missouri with Dmand AI profiles that report each measure.
Dr. Mattson'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.
Need commercial claims for Dr. Mattson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mattson and other neurologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel T. Mattson treated 464 Medicare patients in 2024, average age 69
CMS counts 464 Medicare patients who saw Dr. Mattson in 2024. The largest group is 65 to 74, with 174 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 40% are also on Medicaid. Their average risk score is 2.31, 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. Mattson's median patient age at 70, with 53% women.
Dr. Mattson's Medicare patients by age, 2024
Dr. Mattson's Medicare patients by sex, 2024
- Women24352%
- Men22148%
Chronic conditions among Dr. Mattson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Mood disorders51%
- Arthritis48%
- Anxiety45%
- Depression44%
- Chronic kidney disease42%
- Diabetes42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mattson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel T. Mattson wrote 5,877 Medicare Part D claims in 2024
In 2024, Dr. Mattson wrote 5,877 Medicare Part D claims for 716 patients. 82% of them were for generic drugs. CMS names the drug for 5,603 of them, across 65 drugs with 11 or more claims each, at $2,569,796 in total drug cost. In 2023, CMS named 5,663 claims across 66 drugs.
Dr. Mattson's Part D claims by kind of drug, 2024
- Generic4,811 claims82%
- Brand-name976 claims17%
- Other90 claims2%
Dr. Mattson'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.
Drug classes CMS tracks in Dr. Mattson's Part D claims, 2024
- Opioids0%13 of 5,877 claims
- Antipsychotics, patients 65 and over1%31 of 5,877 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5,6632024: 5,6031%
Drugs named by CMS: 65 in 2024, 66 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
How Dr. Daniel T. Mattson takes part in Medicare
Dr. Mattson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Daniel T. Mattson received $595,881 in industry payments from 2016 to 2025
CMS Open Payments shows 1,066 general payments to Dr. Mattson from 35 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 65% of the total. Jazz Pharmaceuticals Inc. paid the most, $93,457.
General payments to Dr. Mattson by program year, 2016 to 2025
General payments to Dr. Mattson by kind, 2016 to 2025
- Speaker and faculty fees$386,43465%
- Honoraria$109,54518%
- Travel and lodging$37,4146%
- Food and beverage$29,7375%
- Other$32,7085%
Companies that paid Dr. Mattson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel T. Mattson graduated from University of Missouri, Columbia School of Medicine
Dr. Mattson graduated from University of Missouri, Columbia School of Medicine in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Daniel T. Mattson'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Daniel T. Mattson
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. Daniel T. Mattson's NPI number?
Dr. Daniel T. Mattson's NPI number is 1447237870. It was assigned on December 28, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel T. Mattson?
Dr. Daniel T. Mattson is a neurologist in Lake Saint Louis, Missouri. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Daniel T. Mattson practice?
Dr. Mattson practices at 300 Medical Plz, Lake Saint Louis, MO 63367. Dr. Mattson's primary practice is SSM Health Medical Group in Lake Saint Louis, Missouri. Dmand AI also links Dr. Mattson to 4 hospitals and 1 group practice or clinic.
What is Dr. Daniel T. Mattson's office phone number?
The practice phone on file for Dr. Mattson is (636) 496-5000.
What is Dr. Daniel T. Mattson's medical license number?
Dr. Mattson holds Missouri license 2004003731, one of the licenses on file in 2 states.
Which states has Dr. Daniel T. Mattson been licensed in?
Dmand AI has state licenses on file for Dr. Mattson in Missouri and Illinois.
Which hospitals is Dr. Daniel T. Mattson affiliated with?
Dr. Mattson is affiliated with SSM Health St. Joseph Hospital - Lake Saint Louis. Dmand AI links Dr. Mattson to 4 more hospitals.
What medical group is Dr. Daniel T. Mattson part of?
Dr. Mattson is linked to SSM Health Medical Group.
Does Dr. Daniel T. Mattson accept Medicare?
Yes. CMS data shows Dr. Mattson billed Medicare for 1,052 services in 2024, and Dr. Mattson accepts Medicare assignment.
How many Medicare patients does Dr. Daniel T. Mattson see?
CMS counts 464 Medicare patients who saw Dr. Mattson in 2024, with an average age of 69.
Show 5 more questionsShow fewer questions
What services does Dr. Daniel T. Mattson bill to Medicare?
In 2024, Dr. Mattson's most billed Medicare services were office visit, established patient (99214), nerve and brain test (95720) and nerve and brain test (95816).
Where did Dr. Daniel T. Mattson go to medical school?
Dr. Mattson graduated from University of Missouri, Columbia School of Medicine in 2000.
What drugs does Dr. Daniel T. Mattson prescribe most?
In 2024 Medicare Part D data, Dr. Mattson's most prescribed drugs by claims were Levetiracetam, Lacosamide and Lamotrigine.
Has Dr. Daniel T. Mattson received payments from drug or device companies?
CMS Open Payments shows $595,881 in general payments to Dr. Mattson from 35 companies from 2016 to 2025. The largest total came from Jazz Pharmaceuticals Inc.
How long has Dr. Daniel T. Mattson been practicing?
Dr. Mattson graduated from medical school in 2000, 26 years ago.
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