Aathi Lakshmi Mariappan
- Medicare services, 2024
- 764
- Medicare patients, 2024
- 237
- Part D claims, 2024
- 479
- Hospital affiliations
- 2
- Medical group
- 1
- Practice address
- 990 Oak Ridge Turnpike Box 529, Oak Ridge, TN 37830
- Practice phone
- Call (865) 835-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Aathi Lakshmi Mariappan's professional email, personal email and mobile number
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Aathi Lakshmi Mariappan is an internist in Oak Ridge, Tennessee
Aathi Lakshmi Mariappan practices at Methodist Medical Center of Oak Ridge in Oak Ridge, Tennessee, part of Covenant Health.
Aathi Lakshmi Mariappan's NPI, 1023635224, was assigned on July 3, 2020. Aathi Lakshmi Mariappan holds Tennessee license 68290.
- NPI
- 1023635224NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789030628
- NPI enumeration date
- July 3, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (865) 835-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Aathi Lakshmi Mariappan practices at Methodist Medical Center of Oak Ridge in Oak Ridge, Tennessee
Aathi Lakshmi Mariappan's primary practice is Methodist Medical Center of Oak Ridge, at 990 Oak Ridge Turnpike Box 529, Oak Ridge, TN 37830 in Anderson County. The practice phone is (865) 835-1000.
- Methodist Medical Center of Oak Ridge990 Oak Ridge Turnpike Box 529, Oak Ridge, TN 37830 · Anderson CountyPhone(865) 835-1000
Source: Dmand AI Affiliation Data
Aathi Lakshmi Mariappan is affiliated with 4 sites of care and 1 medical group
Aathi Lakshmi Mariappan's primary practice is Methodist Medical Center of Oak Ridge in Oak Ridge, Tennessee, part of Covenant Health. Aathi Lakshmi Mariappan is also affiliated with Covenant Health Roane. The medical group on file is Hospital Medicine Services of Tennessee. Dmand AI also links Aathi Lakshmi Mariappan to 2 more home health agencies, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Aathi Lakshmi Mariappan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Aathi Lakshmi Mariappan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Methodist Medical Center of Oak Ridge | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Aathi Lakshmi Mariappan is one of 2,427 internists in Tennessee
Internal medicine is Aathi Lakshmi Mariappan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Aathi Lakshmi Mariappan is licensed in Tennessee.
Specialties and state licenses
- Internal medicine, TennesseePrimary
Internists near Aathi Lakshmi Mariappan
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
Aathi Lakshmi Mariappan billed Medicare for 764 services in 2024
CMS data shows 764 Medicare services from Aathi Lakshmi Mariappan across 4 procedure codes in 2024, for 237 Medicare patients. Medicare paid $61,079 for them. Every service was in a facility, such as a hospital, rather than an office.
Aathi Lakshmi Mariappan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2302024: 764232%
Aathi Lakshmi Mariappan compared with the Tennessee median for internists, 2024
- Aathi Lakshmi Mariappan
- Tennessee median
- Medicare services
- 764vs 67114% above
- Medicare patients
- 237vs 2227% above
- Part D claims
- 285vs 33415% below
Medians across 2,462 internists in Tennessee with Dmand AI profiles that report each measure.
Aathi Lakshmi Mariappan'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
Aathi Lakshmi Mariappan treated 237 Medicare patients in 2024, average age 78
CMS counts 237 Medicare patients who saw Aathi Lakshmi Mariappan in 2024. The largest group is 75 to 84, with 96 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 2.53, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Aathi Lakshmi Mariappan's median patient age at 71, with 56% women.
Aathi Lakshmi Mariappan's Medicare patients by age, 2024
Aathi Lakshmi Mariappan's Medicare patients by sex, 2024
- Women15465%
- Men8335%
Chronic conditions among Aathi Lakshmi Mariappan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Heart failure60%
- Mood disorders56%
- Depression53%
- Anxiety51%
- COPD51%
Share of Medicare patients with each condition. A patient can have several.
Aathi Lakshmi Mariappan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Aathi Lakshmi Mariappan wrote 479 Medicare Part D claims in 2024
In 2024, Aathi Lakshmi Mariappan wrote 479 Medicare Part D claims for 218 patients. 91% of them were for generic drugs. CMS names the drug for 285 of them, across 18 drugs with 11 or more claims each, at $10,678 in total drug cost.
Aathi Lakshmi Mariappan's Part D claims by kind of drug, 2024
- Generic434 claims91%
- Brand-name and other45 claims9%
Aathi Lakshmi Mariappan'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 Aathi Lakshmi Mariappan's Part D claims, 2024
- Opioids6%28 of 479 claims
- Antibiotics26%123 of 479 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
How Aathi Lakshmi Mariappan takes part in Medicare
Aathi Lakshmi Mariappan 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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Sources for Aathi Lakshmi Mariappan'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) |
| 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 Aathi Lakshmi Mariappan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Aathi Lakshmi Mariappan's NPI number?
Aathi Lakshmi Mariappan's NPI number is 1023635224. It was assigned on July 3, 2020, and it is active in the NPI Registry.
What does Aathi Lakshmi Mariappan specialize in?
Aathi Lakshmi Mariappan is an internist in Oak Ridge, Tennessee. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Aathi Lakshmi Mariappan practice?
Aathi Lakshmi Mariappan practices at 990 Oak Ridge Turnpike Box 529, Oak Ridge, TN 37830. Aathi Lakshmi Mariappan's primary practice is Methodist Medical Center of Oak Ridge in Oak Ridge, Tennessee, part of Covenant Health. Dmand AI also links Aathi Lakshmi Mariappan to 2 home health agencies.
What is Aathi Lakshmi Mariappan's office phone number?
The practice phone on file for Aathi Lakshmi Mariappan is (865) 835-1000.
What is Aathi Lakshmi Mariappan's medical license number?
Aathi Lakshmi Mariappan holds Tennessee license 68290.
Which hospitals is Aathi Lakshmi Mariappan affiliated with?
Aathi Lakshmi Mariappan practices at Methodist Medical Center of Oak Ridge in Oak Ridge, Tennessee. Aathi Lakshmi Mariappan is also affiliated with Covenant Health Roane.
What medical group is Aathi Lakshmi Mariappan part of?
Aathi Lakshmi Mariappan is linked to Hospital Medicine Services of Tennessee.
Does Aathi Lakshmi Mariappan accept Medicare?
Yes. CMS data shows Aathi Lakshmi Mariappan billed Medicare for 764 services in 2024, and Aathi Lakshmi Mariappan accepts Medicare assignment.
How many Medicare patients does Aathi Lakshmi Mariappan see?
CMS counts 237 Medicare patients who saw Aathi Lakshmi Mariappan in 2024, with an average age of 78.
What services does Aathi Lakshmi Mariappan bill to Medicare?
In 2024, Aathi Lakshmi Mariappan's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
What drugs does Aathi Lakshmi Mariappan prescribe most?
In 2024 Medicare Part D data, Aathi Lakshmi Mariappan's most prescribed drugs by claims were Levofloxacin, Prednisone and Doxycycline Hyclate.
How long has Aathi Lakshmi Mariappan been practicing?
Aathi Lakshmi Mariappan graduated from medical school in 2018, 8 years ago.
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