DR. JOHN SPENCER MAYS MD
NPI 1083108062
Internal Medicine in Saint Louis, MO
About Dr. John Spencer Mays Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN SPENCER MAYS MD (NPI 1083108062) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2020001817) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and maintains a secondary practice location in Saint Louis.
NPPES Registry Identity
Specialties & Licenses
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Secondary Practice Location 1
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. John Spencer Mays 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 13
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.
Barnes 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, MOChristian Hospital Northeast
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63141 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 2
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 8
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 John Mays's NPI number?
The NPI number for John Mays is 1083108062. It was assigned to this individual provider in the NPPES registry on June 21, 2018.
Where is John Mays located?
John Mays practices at 969 N Mason Rd Ste 110, Saint Louis, MO 63141. The listed phone number is (314) 996-3434.
What is John Mays's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Mays enrolled in Medicare?
Yes. John Mays 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 John Mays affiliated with any hospitals?
According to CMS data, John Mays is affiliated with Barnes Jewish Hospital, Missouri Baptist Medical Center, Barnes-Jewish West County Hospital, St Lukes Hospital and Christian Hospital Northeast.
When was this NPI record last updated?
The NPPES record for John Mays was last updated on March 22, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.
