DR. DANIEL T MATTSON MD
NPI 1447237870
Psychiatry & Neurology - Neurology in Bridgeton, MO
About Dr. Daniel T Mattson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DANIEL T MATTSON MD (NPI 1447237870) is an individual neurology provider in Bridgeton, Missouri, licensed in Missouri (2004003731) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Ssm St Joseph Health Center, and maintains a secondary practice location in Bridgeton.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Daniel T Mattson Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Daniel Mattson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 697 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 14
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ssm St Joseph Health Center
Acute Care Hospitals · Saint Charles, MOSsm St Clare Health Center
Acute Care Hospitals · Fenton, MOSsm Health St Mary's Hospital - St Louis
Acute Care Hospitals · Richmond Heights, MOSsm Health Depaul Hospital St Louis
Acute Care Hospitals · Bridgeton, MOSsm St Joseph Hospital West
Acute Care Hospitals · Lake Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63044 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BRIDGETON, MO 63044
BRIDGETON, MO 63044
BRIDGETON, MO 63044
BRIDGETON, MO 63044
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Daniel Mattson's NPI number?
The NPI number for Daniel Mattson is 1447237870. It was assigned to this individual provider in the NPPES registry on December 28, 2005.
Where is Daniel Mattson located?
Daniel Mattson practices at 12266 De Paul Dr Ste 100, Bridgeton, MO 63044. The listed phone number is (314) 738-2770.
What is Daniel Mattson's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Daniel Mattson enrolled in Medicare?
Yes. Daniel Mattson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Daniel Mattson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Mattson reassigns Medicare benefits to Ssm Medical Group, Inc. (Fenton, MO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Daniel Mattson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Daniel Mattson accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 2 other insurers list Daniel Mattson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Daniel Mattson affiliated with any hospitals?
According to CMS data, Daniel Mattson is affiliated with Ssm St Joseph Health Center, Ssm St Clare Health Center, Ssm Health St Mary's Hospital - St Louis, Ssm Health Depaul Hospital St Louis and Ssm St Joseph Hospital West.
When was this NPI record last updated?
The NPPES record for Daniel Mattson was last updated on October 23, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.