Dr. Vijai V. Chauhan, MD
- Medicare services, 2024
- 262
- Medicare patients, 2024
- 245
- Part D claims, 2024
- 189
- MIPS score, 2024
- 87
- Hospital affiliations
- 2
- Practice address
- 300 1st Capitol Dr, Saint Charles, MO 63301
- Practice phone
- Call (636) 947-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Chauhan'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. Vijai V. Chauhan is an emergency medicine physician in Saint Charles, Missouri
Dr. Chauhan practices at SSM Health St. Joseph Hospital - St. Charles in Saint Charles, Missouri, part of SSM Health Care.
Dr. Chauhan's NPI, 1982612677, was assigned on August 4, 2006. Dr. Chauhan holds Missouri license 101597.
- NPI
- 1982612677NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062458094
- NPI enumeration date
- August 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (636) 947-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Vijai V. Chauhan practices at SSM Health St. Joseph Hospital - St. Charles in Saint Charles, Missouri
Dr. Chauhan's primary practice is SSM Health St. Joseph Hospital - St. Charles, at 300 1st Capitol Dr, Saint Charles, MO 63301 in St. Charles County. The practice phone is (636) 947-5000.
- SSM Health St. Joseph Hospital - St. Charles300 1st Capitol Dr, Saint Charles, MO 63301 · St. Charles CountyPhone(636) 947-5000
Source: Dmand AI Affiliation Data
Dr. Vijai V. Chauhan is affiliated with 5 sites of care and 4 medical groups
Dr. Chauhan's primary practice is SSM Health St. Joseph Hospital - St. Charles in Saint Charles, Missouri, part of SSM Health Care. Dr. Chauhan is also affiliated with SSM Health DePaul Hospital - St. Louis. The medical group on file is Vituity. Dmand AI also links Dr. Chauhan to 3 more group practices and clinics and 3 medical groups, 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. Vijai V. Chauhan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chauhan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| SSM Health St. Joseph Hospital - St. Charles | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Vijai V. Chauhan is one of 1,063 emergency medicine physicians in Missouri
Emergency medicine is Dr. Chauhan's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Chauhan is licensed in Missouri.
Specialties and state licenses
- Emergency medicine, MissouriPrimary
Emergency medicine physicians near Dr. Chauhan
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. Vijai V. Chauhan billed Medicare for 262 services in 2024
CMS data shows 262 Medicare services from Dr. Chauhan across 3 procedure codes in 2024, for 245 Medicare patients. Medicare paid $33,913 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chauhan compared with the Missouri median for emergency medicine physicians, 2024
- Dr. Chauhan
- Missouri median
- Medicare services
- 262vs 252Close to median
- Medicare patients
- 245vs 2626% below
- Part D claims
- 68vs 69Close to median
Medians across 1,092 emergency medicine physicians in Missouri with Dmand AI profiles that report each measure.
Dr. Chauhan'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. Vijai V. Chauhan treated 245 Medicare patients in 2024, average age 75
CMS counts 245 Medicare patients who saw Dr. Chauhan in 2024. The largest group is 75 to 84, with 81 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 1.76, 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. Chauhan's median patient age at 70, with 55% women.
Dr. Chauhan's Medicare patients by age, 2024
Dr. Chauhan's Medicare patients by sex, 2024
- Women13856%
- Men10744%
Chronic conditions among Dr. Chauhan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Chronic kidney disease46%
- Anxiety44%
- Mood disorders41%
- Heart failure38%
- Ischemic heart disease36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chauhan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Vijai V. Chauhan wrote 189 Medicare Part D claims in 2024
In 2024, Dr. Chauhan wrote 189 Medicare Part D claims for 126 patients. 88% of them were for generic drugs. CMS names the drug for 68 of them, across 4 drugs with 11 or more claims each, at $520 in total drug cost.
Dr. Chauhan's Part D claims by kind of drug, 2024
- Generic167 claims88%
- Brand-name22 claims12%
Dr. Chauhan'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. Chauhan's Part D claims, 2024
- Opioids8%16 of 189 claims
- Antibiotics19%36 of 189 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
Dr. Vijai V. Chauhan scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Chauhan for performance year 2024, reported as part of a group. Dr. Chauhan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Chauhan's MIPS scores, performance year 2024
- 87of 100Final score
- 70.9of 100Quality
- 40of 100Improvement Activities
- 93of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Sources for Dr. Vijai V. Chauhan'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) |
| 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)Clinician Public Reporting: Overall MIPS Performance (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. Vijai V. Chauhan
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. Vijai V. Chauhan's NPI number?
Dr. Vijai V. Chauhan's NPI number is 1982612677. It was assigned on August 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Vijai V. Chauhan?
Dr. Vijai V. Chauhan is an emergency medicine physician in Saint Charles, Missouri. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Vijai V. Chauhan practice?
Dr. Chauhan practices at 300 1st Capitol Dr, Saint Charles, MO 63301. Dr. Chauhan's primary practice is SSM Health St. Joseph Hospital - St. Charles in Saint Charles, Missouri, part of SSM Health Care. Dmand AI also links Dr. Chauhan to 3 group practices and clinics and 3 medical groups.
What is Dr. Vijai V. Chauhan's office phone number?
The practice phone on file for Dr. Chauhan is (636) 947-5000.
What is Dr. Vijai V. Chauhan's medical license number?
Dr. Chauhan holds Missouri license 101597.
Which hospitals is Dr. Vijai V. Chauhan affiliated with?
Dr. Chauhan practices at SSM Health St. Joseph Hospital - St. Charles in Saint Charles, Missouri. Dr. Chauhan is also affiliated with SSM Health DePaul Hospital - St. Louis.
What medical group is Dr. Vijai V. Chauhan part of?
Dr. Chauhan is linked to Vituity. Dmand AI links Dr. Chauhan to 3 more medical groups.
Does Dr. Vijai V. Chauhan accept Medicare?
Yes. CMS data shows Dr. Chauhan billed Medicare for 262 services in 2024, and Dr. Chauhan accepts Medicare assignment.
What is Dr. Vijai V. Chauhan's MIPS score?
Dr. Chauhan's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does Dr. Vijai V. Chauhan see?
CMS counts 245 Medicare patients who saw Dr. Chauhan in 2024, with an average age of 75.
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What services does Dr. Vijai V. Chauhan bill to Medicare?
In 2024, Dr. Chauhan's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
What drugs does Dr. Vijai V. Chauhan prescribe most?
In 2024 Medicare Part D data, Dr. Chauhan's most prescribed drugs by claims were Naproxen, Cephalexin and Hydrocodone-Acetaminophen.
How long has Dr. Vijai V. Chauhan been practicing?
Dr. Chauhan graduated from medical school in 1990, 36 years ago.
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