Abdominal PainAcidosis, LacticLiver Failure, Acute
Dr. Niwanthi Anuradha Mannapperuma, MD
NPI1205462173PAC ID6709249600
- Medicare services, 2024
- 218
- Medicare patients, 2024
- 232
- Part D claims, 2023
- 15
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 24 Hospital Ave, Danbury, CT 06810
- Practice phone
- Call (203) 739-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mannapperuma's professional email, personal email and mobile number
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Dr. Niwanthi Anuradha Mannapperuma is an internist in Danbury, Connecticut
Dr. Mannapperuma practices at Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health.
Dr. Mannapperuma's NPI, 1205462173, was assigned on March 23, 2020. Dr. Mannapperuma holds Connecticut license 75303.
NPI and contact details
- NPI
- 1205462173NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709249600
- NPI enumeration date
- March 23, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 739-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Niwanthi Anuradha Mannapperuma practices at Northwell Danbury Hospital in Danbury, Connecticut
Dr. Mannapperuma's primary practice is Northwell Danbury Hospital, at 24 Hospital Ave, Danbury, CT 06810 in Fairfield County. The practice phone is (203) 739-7000.
- Northwell Danbury Hospital24 Hospital Ave, Danbury, CT 06810 · Fairfield CountyPhone(203) 739-7000
Source: Dmand AI Affiliation Data
Dr. Niwanthi Anuradha Mannapperuma is affiliated with 1 site of care and 1 medical group
Dr. Mannapperuma's primary practice is Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health. The medical group on file is Danbury Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Niwanthi Anuradha Mannapperuma's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mannapperuma practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwell Danbury Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Niwanthi Anuradha Mannapperuma is one of 2,189 internists in Connecticut
Internal medicine is Dr. Mannapperuma's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Mannapperuma is licensed in Connecticut.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
Internists near Dr. Mannapperuma
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. Niwanthi Anuradha Mannapperuma billed Medicare for 218 services in 2024
CMS data shows 218 Medicare services from Dr. Mannapperuma across 2 procedure codes in 2024, for 232 Medicare patients. Medicare paid $29,604 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024218
Medicare patients232
Paid by Medicare$29,604
Procedure codes2
Dr. Mannapperuma's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 382024: 218474%
Dr. Mannapperuma compared with the Connecticut median for internists, 2024
- Dr. Mannapperuma
- Connecticut median
- Medicare services
- 218vs 39044% below
- Medicare patients
- 232vs 17235% above
- Part D claims
- 15vs 34396% below
Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.
Dr. Mannapperuma'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.
Need commercial claims for Dr. Mannapperuma?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mannapperuma and other internists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Niwanthi Anuradha Mannapperuma treated 232 Medicare patients in 2024, average age 79
CMS counts 232 Medicare patients who saw Dr. Mannapperuma in 2024. The largest group is 75 to 84, with 84 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 31% are also on Medicaid. Their average risk score is 2.48, 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. Mannapperuma's median patient age at 80, with 58% women.
Medicare patients, 2024232
Average age79
Average risk score2.48
Also on Medicaid31%
Dr. Mannapperuma's Medicare patients by age, 2024
Dr. Mannapperuma's Medicare patients by sex, 2024
- Women12654%
- Men10646%
Chronic conditions among Dr. Mannapperuma's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease61%
- Arthritis52%
- Mood disorders50%
- Anxiety47%
- Chronic kidney disease47%
- Depression47%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mannapperuma's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 80
Patient panel by sex, all payers
- Women58%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Niwanthi Anuradha Mannapperuma wrote 15 Medicare Part D claims in 2023
In 2023, Dr. Mannapperuma wrote 15 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $127 in total drug cost. In 2022, CMS named 12 claims across 1 drug.
Part D claims, 202315
Drugs named by CMS1
Total drug cost$127
Dr. Mannapperuma's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 122023: 1525%
Drugs named by CMS: 1 in 2023, 1 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Niwanthi Anuradha Mannapperuma takes part in Medicare
Dr. Mannapperuma 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. Niwanthi Anuradha Mannapperuma has 1 publication on record
Dmand AI links 1 paper to Dr. Mannapperuma in 2023. Dr. Mannapperuma's most frequent co-author is Prabasha Ranmini Weeraddana, MD.
Papers1
Dr. Mannapperuma's most frequent co-authors
Recent publications by Dr. Mannapperuma
See who Dr. Mannapperuma researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mannapperuma works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Niwanthi Anuradha Mannapperuma received $125 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Mannapperuma from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $125.
Companies that paid Dr. Mannapperuma 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. Niwanthi Anuradha Mannapperuma'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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) |
| 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. Niwanthi Anuradha Mannapperuma
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. Niwanthi Anuradha Mannapperuma's NPI number?
Dr. Niwanthi Anuradha Mannapperuma's NPI number is 1205462173. It was assigned on March 23, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Niwanthi Anuradha Mannapperuma?
Dr. Niwanthi Anuradha Mannapperuma is an internist in Danbury, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Niwanthi Anuradha Mannapperuma practice?
Dr. Mannapperuma practices at 24 Hospital Ave, Danbury, CT 06810. Dr. Mannapperuma's primary practice is Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health.
What is Dr. Niwanthi Anuradha Mannapperuma's office phone number?
The practice phone on file for Dr. Mannapperuma is (203) 739-7000.
What is Dr. Niwanthi Anuradha Mannapperuma's medical license number?
Dr. Mannapperuma holds Connecticut license 75303.
Which hospitals is Dr. Niwanthi Anuradha Mannapperuma affiliated with?
Dr. Mannapperuma practices at Northwell Danbury Hospital in Danbury, Connecticut.
What medical group is Dr. Niwanthi Anuradha Mannapperuma part of?
Dr. Mannapperuma is linked to Danbury Medical Group.
Does Dr. Niwanthi Anuradha Mannapperuma accept Medicare?
Yes. CMS data shows Dr. Mannapperuma billed Medicare for 218 services in 2024, and Dr. Mannapperuma accepts Medicare assignment.
How many Medicare patients does Dr. Niwanthi Anuradha Mannapperuma see?
CMS counts 232 Medicare patients who saw Dr. Mannapperuma in 2024, with an average age of 79.
What services does Dr. Niwanthi Anuradha Mannapperuma bill to Medicare?
In 2024, Dr. Mannapperuma's most billed Medicare services were hospital inpatient care (99223) and hospital inpatient care (99222).
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What drugs does Dr. Niwanthi Anuradha Mannapperuma prescribe most?
In 2023 Medicare Part D data, Dr. Mannapperuma's most prescribed drugs by claims were Amlodipine Besylate.
Has Dr. Niwanthi Anuradha Mannapperuma received payments from drug or device companies?
CMS Open Payments shows $125 in general payments to Dr. Mannapperuma from 1 company from 2022 to 2022. The largest total came from Amgen Inc.
How long has Dr. Niwanthi Anuradha Mannapperuma been practicing?
Dr. Mannapperuma graduated from medical school in 2016, 10 years ago.
Does Dr. Niwanthi Anuradha Mannapperuma do research?
Dmand AI links 1 publication to Dr. Mannapperuma.
Who does Dr. Niwanthi Anuradha Mannapperuma publish with?
Dr. Mannapperuma's most frequent co-authors are Prabasha Ranmini Weeraddana, MD (1 shared paper).
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