Dr. Mathavi Sahadevan, MD
- Medicare services, 2021
- 629
- Part D claims, 2021
- 15
- Industry payments
- $375
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 9701 Landmark Parkway Drive, #100, Saint Louis, MO 63127
- Practice phone
- Call (314) 962-3464
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Landmark Surgery Center - Saint Louis
Surgery Center - Medicare-Certified · Saint Louis, Missouri
Find Dr. Sahadevan'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. Mathavi Sahadevan is an internist in Saint Louis, Missouri
Dr. Sahadevan practices at Landmark Surgery Center - Saint Louis in Saint Louis, Missouri.
Dr. Sahadevan's NPI, 1871022095, was assigned on June 9, 2017. Dr. Sahadevan graduated from St. George's University School of Medicine in 2017. Dr. Sahadevan holds Illinois license 036.153168.
- NPI
- 1871022095NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668719949
- NPI enumeration date
- June 9, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 962-3464
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mathavi Sahadevan practices at Landmark Surgery Center - Saint Louis in Saint Louis, Missouri
Dr. Sahadevan's primary practice is Landmark Surgery Center - Saint Louis, at 9701 Landmark Parkway Drive, #100, Saint Louis, MO 63127. The practice phone is (314) 962-3464.
- Landmark Surgery Center - Saint Louis9701 Landmark Parkway Drive, #100, Saint Louis, MO 63127Phone(314) 962-3464
Source: Dmand AI Affiliation Data
Dr. Mathavi Sahadevan is affiliated with 2 sites of care and 1 medical group
Dr. Sahadevan's primary practice is Landmark Surgery Center - Saint Louis in Saint Louis, Missouri. The medical group on file is Allergy, Asthma & Food Allergy Centers. Dmand AI also links Dr. Sahadevan to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mathavi Sahadevan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sahadevan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Landmark Surgery Center - Saint Louis | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mathavi Sahadevan is one of 2,114 internists in Missouri
Internal medicine is Dr. Sahadevan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sahadevan is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Sahadevan
Counts of internists 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. Mathavi Sahadevan billed Medicare for 629 services in 2021
CMS data shows 629 Medicare services from Dr. Sahadevan across 7 procedure codes in 2021. Medicare paid $46,220 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sahadevan's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 4652021: 62935%
Dr. Sahadevan compared with the Missouri median for internists, 2021
- Dr. Sahadevan
- Missouri median
- Medicare services
- 629vs 53019% above
- Part D claims
- 15vs 32595% below
Medians across 2,076 internists in Missouri with Dmand AI profiles that report each measure.
Dr. Sahadevan's most billed Medicare procedure codes, 2021
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sahadevan and other internists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mathavi Sahadevan's patients have a median age of 35
Across all payers, Dmand AI patient panel data puts Dr. Sahadevan's median patient age at 35, with 46% women.
Dr. Sahadevan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 35
Patient panel by sex, all payers
- Women46%
- Men54%
Source: Dmand AI Patient Panel Data
Dr. Mathavi Sahadevan wrote 15 Medicare Part D claims in 2021
In 2021, Dr. Sahadevan wrote 15 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $59 in total drug cost. In 2020, CMS named 11 claims across 1 drug.
Dr. Sahadevan's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 112021: 1536%
Drugs named by CMS: 1 in 2021, 1 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Mathavi Sahadevan takes part in Medicare
Dr. Sahadevan 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. Mathavi Sahadevan received $375 in industry payments in 2019
CMS Open Payments shows 3 general payments to Dr. Sahadevan from 3 drug and device companies in 2019. Food and beverage make up the largest share, 100% of the total. Alexion Pharmaceuticals, Inc. paid the most, $125.
Companies that paid Dr. Sahadevan the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mathavi Sahadevan graduated from St. George's University School of Medicine
Dr. Sahadevan graduated from St. George's University School of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mathavi Sahadevan'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Mathavi Sahadevan
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. Mathavi Sahadevan's NPI number?
Dr. Mathavi Sahadevan's NPI number is 1871022095. It was assigned on June 9, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Mathavi Sahadevan?
Dr. Mathavi Sahadevan is an internist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mathavi Sahadevan practice?
Dr. Sahadevan practices at 9701 Landmark Parkway Drive, #100, Saint Louis, MO 63127. Dr. Sahadevan's primary practice is Landmark Surgery Center - Saint Louis in Saint Louis, Missouri. Dmand AI also links Dr. Sahadevan to 1 group practice or clinic.
What is Dr. Mathavi Sahadevan's office phone number?
The practice phone on file for Dr. Sahadevan is (314) 962-3464.
What is Dr. Mathavi Sahadevan's medical license number?
Dr. Sahadevan holds Illinois license 036.153168.
What medical group is Dr. Mathavi Sahadevan part of?
Dr. Sahadevan is linked to Allergy, Asthma & Food Allergy Centers.
Does Dr. Mathavi Sahadevan accept Medicare?
Yes. CMS data shows Dr. Sahadevan billed Medicare for 629 services in 2021, and Dr. Sahadevan accepts Medicare assignment.
What services does Dr. Mathavi Sahadevan bill to Medicare?
In 2021, Dr. Sahadevan's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
Where did Dr. Mathavi Sahadevan go to medical school?
Dr. Sahadevan graduated from St. George's University School of Medicine in 2017.
What drugs does Dr. Mathavi Sahadevan prescribe most?
In 2021 Medicare Part D data, Dr. Sahadevan's most prescribed drugs by claims were Prednisone.
Has Dr. Mathavi Sahadevan received payments from drug or device companies?
CMS Open Payments shows $375 in general payments to Dr. Sahadevan from 3 companies from 2019 to 2019. The largest total came from Alexion Pharmaceuticals, Inc.
How long has Dr. Mathavi Sahadevan been practicing?
Dr. Sahadevan graduated from medical school in 2017, 9 years ago.
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