Dr. Vijaya Thothathri, MD
- Medicare services, 2024
- 142
- Medicare patients, 2024
- 156
- Part D claims, 2024
- 205
- Hospital affiliations
- 2
- Industry payments
- $25
- Practice address
- 1 St Elizabeth Blvd, O'Fallon, IL 62269
- Practice phone
- Call (217) 492-9651
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
HSHS St. Elizabeth's Hospital
O'Fallon, Illinois
Find Dr. Thothathri's professional email, personal email and mobile number
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Dr. Vijaya Thothathri is an emergency medicine physician in O'Fallon, Illinois
Dr. Thothathri practices at HSHS St. Elizabeth's Hospital in O'Fallon, Illinois.
Dr. Thothathri's NPI, 1659370393, was assigned on July 15, 2005. Dr. Thothathri holds Illinois license 036092090.
- NPI
- 1659370393NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315906989
- NPI enumeration date
- July 15, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 492-9651
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Vijaya Thothathri practices at HSHS St. Elizabeth's Hospital in O'Fallon, Illinois
Dr. Thothathri's primary practice is HSHS St. Elizabeth's Hospital, at 1 St Elizabeth Blvd, O'Fallon, IL 62269 in Saint Clair County. The practice phone is (217) 492-9651.
- HSHS St. Elizabeth's Hospital1 St Elizabeth Blvd, O'Fallon, IL 62269 · Saint Clair CountyPhone(217) 492-9651
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Vijaya Thothathri is affiliated with 4 sites of care and 3 medical groups
Dr. Thothathri's primary practice is HSHS St. Elizabeth's Hospital in O'Fallon, Illinois. Dr. Thothathri is also affiliated with HSHS St. Elizabeth's Hospital. The medical group on file is CEP America. Dmand AI also links Dr. Thothathri to 1 more hospital, 2 medical groups 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. Vijaya Thothathri's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thothathri practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HSHS St. Elizabeth's Hospital | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Vijaya Thothathri is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Thothathri's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Thothathri is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Thothathri
Counts of emergency medicine physicians 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. Vijaya Thothathri billed Medicare for 142 services in 2024
CMS data shows 142 Medicare services from Dr. Thothathri across 2 procedure codes in 2024, all of them office visits, for 156 Medicare patients. Medicare paid $11,575 for them. Every service was in an office.
Dr. Thothathri's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1132024: 14226%
Dr. Thothathri compared with the Illinois median for emergency medicine physicians, 2024
- Dr. Thothathri
- Illinois median
- Medicare services
- 142vs 27448% below
- Medicare patients
- 156vs 27343% below
- Part D claims
- 125vs 452.8 times
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Thothathri'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Vijaya Thothathri treated 156 Medicare patients in 2024, average age 71
CMS counts 156 Medicare patients who saw Dr. Thothathri in 2024. The largest group is 65 to 74, with 69 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 15% are also on Medicaid. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Thothathri's median patient age at 51, with 63% women.
Dr. Thothathri's Medicare patients by age, 2024
Dr. Thothathri's Medicare patients by sex, 2024
- Women10165%
- Men5535%
Chronic conditions among Dr. Thothathri's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis54%
- Anxiety31%
- Diabetes28%
- Ischemic heart disease28%
- Mood disorders27%
- Chronic kidney disease25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Thothathri's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women63%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Vijaya Thothathri wrote 205 Medicare Part D claims in 2024
In 2024, Dr. Thothathri wrote 205 Medicare Part D claims for 128 patients. 87% of them were for generic drugs. CMS names the drug for 125 of them, across 9 drugs with 11 or more claims each, at $2,486 in total drug cost. In 2022, CMS named 30 claims across 2 drugs.
Dr. Thothathri's Part D claims by kind of drug, 2024
- Generic179 claims87%
- Brand-name26 claims13%
Dr. Thothathri'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. Thothathri's Part D claims, 2024
- Antibiotics41%85 of 205 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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 302024: 125317%
Drugs named by CMS: 9 in 2024, 2 in 2022.
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. Vijaya Thothathri takes part in Medicare
Dr. Thothathri 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. Vijaya Thothathri received $25 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Thothathri from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Biosense Webster, Inc. paid the most, $25.
Companies that paid Dr. Thothathri the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Vijaya Thothathri'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) |
| 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. Vijaya Thothathri
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. Vijaya Thothathri's NPI number?
Dr. Vijaya Thothathri's NPI number is 1659370393. It was assigned on July 15, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Vijaya Thothathri?
Dr. Vijaya Thothathri is an emergency medicine physician in O'Fallon, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Vijaya Thothathri practice?
Dr. Thothathri practices at 1 St Elizabeth Blvd, O'Fallon, IL 62269. Dr. Thothathri's primary practice is HSHS St. Elizabeth's Hospital in O'Fallon, Illinois. Dmand AI also links Dr. Thothathri to 1 hospital, 2 medical groups and 1 group practice or clinic.
What is Dr. Vijaya Thothathri's office phone number?
The practice phone on file for Dr. Thothathri is (217) 492-9651.
What is Dr. Vijaya Thothathri's medical license number?
Dr. Thothathri holds Illinois license 036092090.
Which hospitals is Dr. Vijaya Thothathri affiliated with?
Dr. Thothathri is affiliated with HSHS St. Elizabeth's Hospital. Dmand AI links Dr. Thothathri to 1 more hospital.
What medical group is Dr. Vijaya Thothathri part of?
Dr. Thothathri is linked to CEP America. Dmand AI links Dr. Thothathri to 2 more medical groups.
Does Dr. Vijaya Thothathri accept Medicare?
Yes. CMS data shows Dr. Thothathri billed Medicare for 142 services in 2024, and Dr. Thothathri accepts Medicare assignment.
How many Medicare patients does Dr. Vijaya Thothathri see?
CMS counts 156 Medicare patients who saw Dr. Thothathri in 2024, with an average age of 71.
What services does Dr. Vijaya Thothathri bill to Medicare?
In 2024, Dr. Thothathri's most billed Medicare services were office visit, established patient (99214) and office visit, new patient (99204).
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What drugs does Dr. Vijaya Thothathri prescribe most?
In 2024 Medicare Part D data, Dr. Thothathri's most prescribed drugs by claims were Amoxicillin, Azithromycin and Cephalexin.
Has Dr. Vijaya Thothathri received payments from drug or device companies?
CMS Open Payments shows $25 in general payments to Dr. Thothathri from 1 company from 2022 to 2022. The largest total came from Biosense Webster, Inc.
How long has Dr. Vijaya Thothathri been practicing?
Dr. Thothathri graduated from medical school in 1991, 35 years ago.
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