Dr. Shawn Andrew Mayer, MD
- Medicare services, 2024
- 808
- Medicare patients, 2024
- 751
- Hospital affiliations
- 5
- Industry payments
- $1,912
- Medical group
- 1
- Practice address
- 800 E Carpenter St, Springfield, IL 62769
- Practice phone
- Call (217) 544-6464
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mayer'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. Shawn Andrew Mayer is an interventional radiologist in Springfield, Illinois
Dr. Mayer practices at HSHS St. John's Hospital in Springfield, Illinois, part of Hospital Sisters of St. Francis.
Dr. Mayer's NPI, 1346495546, was assigned on December 2, 2008. Dr. Mayer holds Illinois license 036-137487.
- NPI
- 1346495546NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325282767
- NPI enumeration date
- December 2, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 544-6464
- 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. Shawn Andrew Mayer practices at HSHS St. John's Hospital in Springfield, Illinois
Dr. Mayer's primary practice is HSHS St. John's Hospital, at 800 E Carpenter St, Springfield, IL 62769 in Sangamon County. The practice phone is (217) 544-6464.
- HSHS St. John's Hospital800 E Carpenter St, Springfield, IL 62769 · Sangamon CountyPhone(217) 544-6464
Source: Dmand AI Affiliation Data
Dr. Shawn Andrew Mayer is affiliated with 5 sites of care and 1 medical group
Dr. Mayer's primary practice is HSHS St. John's Hospital in Springfield, Illinois, part of Hospital Sisters of St. Francis. Dr. Mayer is also affiliated with HSHS St. Elizabeth's Hospital. The medical group on file is Central Illinois Radiological Associates (CIRA). Dmand AI also links Dr. Mayer to 3 more hospitals, 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. Shawn Andrew Mayer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mayer practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HSHS St. John's Hospital | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Hospital Sisters of St. Francis and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Shawn Andrew Mayer is one of 187 interventional radiologists in Illinois
Vascular and interventional radiology is Dr. Mayer's primary specialty in the NPI Registry, under taxonomy code 2085R0204X. Dmand AI has Dr. Mayer's licenses on file in 2 states: Illinois and Oregon.
Specialties and state licenses
- Vascular and interventional radiology, IllinoisPrimary
- Oregon license
Interventional radiologists near Dr. Mayer
Counts of interventional radiologists 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. Shawn Andrew Mayer billed Medicare for 808 services in 2024
CMS data shows 808 Medicare services from Dr. Mayer across 20 procedure codes in 2024, for 751 Medicare patients. Medicare paid $29,820 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mayer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 8302024: 69017%
- Surgery
- 2023: 1152024: 7436%
- Tests and treatments
- 2023: 722024: 4439%
Dr. Mayer compared with the Illinois median for interventional radiologists, 2024
- Dr. Mayer
- Illinois median
- Medicare services
- 808vs 92012% below
- Medicare patients
- 751vs 53840% above
Medians across 164 interventional radiologists in Illinois with Dmand AI profiles that report each measure.
Dr. Mayer'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. Mayer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mayer and other interventional radiologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Shawn Andrew Mayer treated 751 Medicare patients in 2024, average age 75
CMS counts 751 Medicare patients who saw Dr. Mayer in 2024. The largest group is 75 to 84, with 279 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 2.17, 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. Mayer's median patient age at 64, with 49% women.
Dr. Mayer's Medicare patients by age, 2024
Dr. Mayer's Medicare patients by sex, 2024
- Women38651%
- Men36549%
Chronic conditions among Dr. Mayer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Ischemic heart disease56%
- Chronic kidney disease46%
- Diabetes46%
- Heart failure46%
- Atrial fibrillation40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mayer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Shawn Andrew Mayer takes part in Medicare
Dr. Mayer 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. Shawn Andrew Mayer received $1,912 in industry payments from 2016 to 2024
CMS Open Payments shows 19 general payments to Dr. Mayer from 10 drug and device companies from 2016 to 2024. Travel and lodging make up the largest share, 57% of the total. Medtronic Vascular, Inc. paid the most, $1,454.
General payments to Dr. Mayer by program year, 2016 to 2024
General payments to Dr. Mayer by kind, 2016 to 2024
- Travel and lodging$1,08257%
- Food and beverage$83043%
Companies that paid Dr. Mayer the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Shawn Andrew Mayer'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) |
| 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) |
| 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. Shawn Andrew Mayer
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. Shawn Andrew Mayer's NPI number?
Dr. Shawn Andrew Mayer's NPI number is 1346495546. It was assigned on December 2, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Shawn Andrew Mayer?
Dr. Shawn Andrew Mayer is an interventional radiologist in Springfield, Illinois. The primary specialty in the NPI Registry is Vascular & Interventional Radiology Physician (taxonomy code 2085R0204X).
Where does Dr. Shawn Andrew Mayer practice?
Dr. Mayer practices at 800 E Carpenter St, Springfield, IL 62769. Dr. Mayer's primary practice is HSHS St. John's Hospital in Springfield, Illinois, part of Hospital Sisters of St. Francis. Dmand AI also links Dr. Mayer to 3 hospitals.
What is Dr. Shawn Andrew Mayer's office phone number?
The practice phone on file for Dr. Mayer is (217) 544-6464.
What is Dr. Shawn Andrew Mayer's medical license number?
Dr. Mayer holds Illinois license 036-137487, one of the licenses on file in 2 states.
Which states has Dr. Shawn Andrew Mayer been licensed in?
Dmand AI has state licenses on file for Dr. Mayer in Illinois and Oregon.
Which hospitals is Dr. Shawn Andrew Mayer affiliated with?
Dr. Mayer practices at HSHS St. John's Hospital in Springfield, Illinois. Dr. Mayer is also affiliated with HSHS St. Elizabeth's Hospital. Dmand AI links Dr. Mayer to 3 more hospitals.
What medical group is Dr. Shawn Andrew Mayer part of?
Dr. Mayer is linked to Central Illinois Radiological Associates (CIRA).
Does Dr. Shawn Andrew Mayer accept Medicare?
Yes. CMS data shows Dr. Mayer billed Medicare for 808 services in 2024, and Dr. Mayer accepts Medicare assignment.
How many Medicare patients does Dr. Shawn Andrew Mayer see?
CMS counts 751 Medicare patients who saw Dr. Mayer in 2024, with an average age of 75.
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What services does Dr. Shawn Andrew Mayer bill to Medicare?
In 2024, Dr. Mayer's most billed Medicare services were diagnostic imaging (71045), diagnostic imaging (74177) and diagnostic imaging (71250).
Has Dr. Shawn Andrew Mayer received payments from drug or device companies?
CMS Open Payments shows $1,912 in general payments to Dr. Mayer from 10 companies from 2016 to 2024. The largest total came from Medtronic Vascular, Inc.
How long has Dr. Shawn Andrew Mayer been practicing?
Dr. Mayer graduated from medical school in 2007, 19 years ago.
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