Dr. Ruban Nirmalan, MD
- Medicare services, 2024
- 484
- Medicare patients, 2024
- 309
- Part D claims, 2024
- 161
- Publications
- 1
- MIPS score, 2024
- 86
- Practice address
- 2001 W 86th St, Indianapolis, IN 46260
- Practice phone
- Call (317) 338-2172
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascension St Vincent Hospital- Indianapolis
Indianapolis, Indiana
Find Dr. Nirmalan'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. Ruban Nirmalan is a general surgeon in Indianapolis, Indiana
Dr. Nirmalan practices at Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana.
Dr. Nirmalan's NPI, 1245323153, was assigned on October 2, 2006. Dr. Nirmalan graduated from Northeastern Ohio University College of Medicine in 2001. Dr. Nirmalan holds Indiana license 01066478A.
- NPI
- 1245323153NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709886294
- NPI enumeration date
- October 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (317) 338-2172
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ruban Nirmalan practices at Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana
Dr. Nirmalan's primary practice is Ascension St Vincent Hospital- Indianapolis, at 2001 W 86th St, Indianapolis, IN 46260 in Marion County. The practice phone is (317) 338-2172.
- Ascension St Vincent Hospital- Indianapolis2001 W 86th St, Indianapolis, IN 46260 · Marion CountyPhone(317) 338-2172
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ruban Nirmalan is affiliated with 6 sites of care and 2 medical groups
Dr. Nirmalan's primary practice is Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana. Dr. Nirmalan is also affiliated with Indiana University Health Arnett Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Nirmalan to 2 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ruban Nirmalan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nirmalan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension St Vincent Hospital- Indianapolis | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ruban Nirmalan is one of 530 general surgeons in Indiana
Surgery is Dr. Nirmalan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Nirmalan's licenses on file in 2 states: Indiana and Michigan.
Specialties and state licenses
- Surgery, IndianaPrimary
- Michigan license
General surgeons near Dr. Nirmalan
Counts of general surgeons 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. Ruban Nirmalan billed Medicare for 484 services in 2024
CMS data shows 484 Medicare services from Dr. Nirmalan across 16 procedure codes in 2024, for 309 Medicare patients. Medicare paid $64,548 for them.
Dr. Nirmalan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3572024: 3714%
- Surgery
- 2023: 262024: 113335%
Where Dr. Nirmalan's Medicare services took place, 2024
- In an office31164%
- In a facility17336%
Dr. Nirmalan compared with the Indiana median for general surgeons, 2024
- Dr. Nirmalan
- Indiana median
- Medicare services
- 484vs 1563.1 times
- Medicare patients
- 309vs 1312.4 times
- Part D claims
- 138vs 403.5 times
Medians across 526 general surgeons in Indiana with Dmand AI profiles that report each measure.
Dr. Nirmalan'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nirmalan and other general surgeons in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ruban Nirmalan treated 309 Medicare patients in 2024, average age 73
CMS counts 309 Medicare patients who saw Dr. Nirmalan in 2024. The largest group is 65 to 74, with 139 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.65, 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. Nirmalan's median patient age at 55, with 46% women.
Dr. Nirmalan's Medicare patients by age, 2024
Dr. Nirmalan's Medicare patients by sex, 2024
- Women13945%
- Men17055%
Chronic conditions among Dr. Nirmalan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis38%
- Chronic kidney disease38%
- Diabetes36%
- Depression29%
- Ischemic heart disease29%
- Mood disorders29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nirmalan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ruban Nirmalan wrote 161 Medicare Part D claims in 2024
In 2024, Dr. Nirmalan wrote 161 Medicare Part D claims for 129 patients. 100% of them were for generic drugs. CMS names the drug for 138 of them, across 3 drugs with 11 or more claims each, at $366 in total drug cost. In 2023, CMS named 91 claims across 2 drugs.
Dr. Nirmalan'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. Nirmalan's Part D claims, 2024
- Opioids69%111 of 161 claims
- Antibiotics19%31 of 161 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 912024: 13852%
Drugs named by CMS: 3 in 2024, 2 in 2023.
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. Ruban Nirmalan scored 86 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Nirmalan for performance year 2024, reported individually. Dr. Nirmalan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 30 procedures of hernia repair (minimally invasive) by Dr. Nirmalan, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Nirmalan's MIPS scores, performance year 2024
- 86of 100Final score
- 69.2of 100Quality
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
- 81of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Nirmalan ranks in Medicare procedure volume
- Melanoma (skin cancer) excision
- 86th percentile47 procedures
- Hernia repair (minimally invasive)
- 95th percentile30 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ruban Nirmalan has 1 publication on record
Dmand AI links 1 paper to Dr. Nirmalan in 2024.
Recent publications by Dr. Nirmalan
See who Dr. Nirmalan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nirmalan works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ruban Nirmalan received $5,475 in industry payments from 2016 to 2025
CMS Open Payments shows 25 general payments to Dr. Nirmalan from 7 drug and device companies from 2016 to 2025. Education make up the largest share, 73% of the total. Intuitive Surgical, Inc. paid the most, $4,320.
General payments to Dr. Nirmalan by program year, 2016 to 2025
General payments to Dr. Nirmalan by kind, 2016 to 2025
- Education$4,00073%
- Food and beverage$1,02219%
- Device or supply loans$4538%
Companies that paid Dr. Nirmalan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ruban Nirmalan graduated from Northeastern Ohio University College of Medicine
Dr. Nirmalan graduated from Northeastern Ohio University College of Medicine in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ruban Nirmalan'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Ruban Nirmalan
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. Ruban Nirmalan's NPI number?
Dr. Ruban Nirmalan's NPI number is 1245323153. It was assigned on October 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruban Nirmalan?
Dr. Ruban Nirmalan is a general surgeon in Indianapolis, Indiana. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Ruban Nirmalan practice?
Dr. Nirmalan practices at 2001 W 86th St, Indianapolis, IN 46260. Dr. Nirmalan's primary practice is Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana. Dmand AI also links Dr. Nirmalan to 2 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Ruban Nirmalan's office phone number?
The practice phone on file for Dr. Nirmalan is (317) 338-2172.
What is Dr. Ruban Nirmalan's medical license number?
Dr. Nirmalan holds Indiana license 01066478A, one of the licenses on file in 2 states.
Which states has Dr. Ruban Nirmalan been licensed in?
Dmand AI has state licenses on file for Dr. Nirmalan in Indiana and Michigan.
Which hospitals is Dr. Ruban Nirmalan affiliated with?
Dr. Nirmalan is affiliated with Indiana University Health Arnett Hospital. Dmand AI links Dr. Nirmalan to 2 more hospitals.
What medical group is Dr. Ruban Nirmalan part of?
Dr. Nirmalan is linked to IU Health Medical Group. Dmand AI links Dr. Nirmalan to 1 more medical group.
Does Dr. Ruban Nirmalan accept Medicare?
Yes. CMS data shows Dr. Nirmalan billed Medicare for 484 services in 2024, and Dr. Nirmalan accepts Medicare assignment.
What is Dr. Ruban Nirmalan's MIPS score?
Dr. Nirmalan's MIPS final score for performance year 2024 is 86 out of 100, reported individually.
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How many Medicare patients does Dr. Ruban Nirmalan see?
CMS counts 309 Medicare patients who saw Dr. Nirmalan in 2024, with an average age of 73.
What services does Dr. Ruban Nirmalan bill to Medicare?
In 2024, Dr. Nirmalan's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99214) and hospital inpatient care (99232).
Where did Dr. Ruban Nirmalan go to medical school?
Dr. Nirmalan graduated from Northeastern Ohio University College of Medicine in 2001.
What drugs does Dr. Ruban Nirmalan prescribe most?
In 2024 Medicare Part D data, Dr. Nirmalan's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Neomycin Sulfate and Metronidazole.
Has Dr. Ruban Nirmalan received payments from drug or device companies?
CMS Open Payments shows $5,475 in general payments to Dr. Nirmalan from 7 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Ruban Nirmalan been practicing?
Dr. Nirmalan graduated from medical school in 2001, 25 years ago.
Does Dr. Ruban Nirmalan do research?
Dmand AI links 1 publication to Dr. Nirmalan.
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