DR. DANIEL J MAESTAS MD
NPI 1407823511
Family Medicine in Saint Louis, MO
About Dr. Daniel J Maestas Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DANIEL J MAESTAS MD (NPI 1407823511) is an individual family medicine provider in Saint Louis, Missouri, licensed in Missouri (R2J10) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and maintains a secondary practice location in Olivette.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Daniel J Maestas 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.
Areas of Expertise CMS Part B claims 7
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.
Mercy Hospital St Louis
Acute Care Hospitals · Saint Louis, MOBarnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOMissouri Baptist Medical Center
Acute Care Hospitals · Town And Country, MOBarnes-Jewish West County Hospital
Acute Care Hospitals · Creve Coeur, MOSt Lukes Hospital
Acute Care Hospitals · Chesterfield, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63124 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Maestas's NPI number?
The NPI number for Daniel Maestas is 1407823511. It was assigned to this individual provider in the NPPES registry on March 7, 2006.
Where is Daniel Maestas located?
Daniel Maestas practices at 8888 Ladue Rd Ste 210, Saint Louis, MO 63124. The listed phone number is (314) 862-5044.
What is Daniel Maestas's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Daniel Maestas enrolled in Medicare?
Yes. Daniel Maestas 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.
Is Daniel Maestas affiliated with any hospitals?
According to CMS data, Daniel Maestas is affiliated with Mercy Hospital St Louis, Barnes Jewish Hospital, Missouri Baptist Medical Center, Barnes-Jewish West County Hospital and St Lukes Hospital.
When was this NPI record last updated?
The NPPES record for Daniel Maestas was last updated on September 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.
