Cardiorenal Med
Echocardiography, DopplerHeart FailureRenal Circulation
Dr. Janani Rangaswami, MD
NPI1275748626
- Medicare services, 2023
- 177
- Part D claims, 2022
- 86
- Publications
- 157
- Hospital affiliations
- 1
- Industry payments
- $152,359
- Practice address
- 50 Irving Street N.W., Washington, DC 20422
- Practice phone
- Call (202) 745-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Rangaswami'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. Janani Rangaswami is a nephrologist in Washington, District of Columbia
Dr. Rangaswami practices at Washington DC VA Medical Center in Washington, District of Columbia, part of Veterans Health Administration.
Dr. Rangaswami's NPI, 1275748626, was assigned on May 11, 2007. Dr. Rangaswami holds District of Columbia license MD049393.
NPI and contact details
- NPI
- 1275748626NPI Registry (opens in a new tab)
- NPI enumeration date
- May 11, 2007
- NPI status
- Active
- Practice phone
- (202) 745-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Janani Rangaswami practices at Washington DC VA Medical Center in Washington, District of Columbia
Dr. Rangaswami's primary practice is Washington DC VA Medical Center, at 50 Irving Street N.W., Washington, DC 20422 in The District County. The practice phone is (202) 745-8000.
- Washington DC VA Medical Center50 Irving Street N.W., Washington, DC 20422 · The District CountyPhone(202) 745-8000
Source: Dmand AI Affiliation Data
Dr. Janani Rangaswami is affiliated with 2 sites of care and 1 medical group
Dr. Rangaswami's primary practice is Washington DC VA Medical Center in Washington, District of Columbia, part of Veterans Health Administration. The medical group on file is The GW Medical Faculty Associates. Dmand AI also links Dr. Rangaswami to 1 more group practice or clinic, named with a free account. Dr. Rangaswami's employer is on file too: a hospital.
The GW Medical Faculty Associates1 group practice or clinicName with a free accountEmployer: hospitalName with a free account
See all 3 affiliations for Dr. RangaswamiSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Janani Rangaswami's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rangaswami practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Washington DC VA Medical Center | 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. Janani Rangaswami is one of 58 nephrologists in District of Columbia
Nephrology is Dr. Rangaswami's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Rangaswami is licensed in District of Columbia.
Specialties and state licenses
- Nephrology, District of ColumbiaPrimary
Nephrologists near Dr. Rangaswami
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
58nephrologists in District of Columbia58nephrologists in Washington4nephrologists at Washington DC VA Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Janani Rangaswami billed Medicare for 177 services in 2023
CMS data shows 177 Medicare services from Dr. Rangaswami across 4 procedure codes in 2023. Medicare paid $14,175 for them.
Medicare services, 2023177
Paid by Medicare$14,175
Procedure codes4
Dr. Rangaswami's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 8892023: 17780%
- Tests and treatments
- 2022: 1022023: 0100%
Where Dr. Rangaswami's Medicare services took place, 2023
- In an office116%
- In a facility16694%
Dr. Rangaswami compared with the District of Columbia median for nephrologists, 2023
- Dr. Rangaswami
- District of Columbia median
- Medicare services
- 177vs 76377% below
- Part D claims
- 86vs 20859% below
Medians across 51 nephrologists in District of Columbia with Dmand AI profiles that report each measure.
Dr. Rangaswami's most billed Medicare procedure codes, 2023
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. Rangaswami and other nephrologists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Janani Rangaswami's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Rangaswami's median patient age at 61, with 40% women.
Dr. Rangaswami's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women40%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. Janani Rangaswami wrote 86 Medicare Part D claims in 2022
In 2022, Dr. Rangaswami wrote 86 Medicare Part D claims. They cover 6 drugs, with $1,667 in total drug cost. In 2021, CMS named 479 claims across 17 drugs.
Part D claims, 202286
Drugs named by CMS6
Total drug cost$1,667
Dr. Rangaswami's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 4792022: 8682%
Drugs named by CMS: 6 in 2022, 17 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Janani Rangaswami has 157 publications on record
Dmand AI links 157 papers to Dr. Rangaswami, published from 2013 to 2025. 2020 was the busiest year, with 22. The most frequent topics are Heart Failure, Renal Insufficiency, Chronic and Kidney. Dr. Rangaswami has published most often in Cardiorenal Med. Dr. Rangaswami's most frequent co-authors are Roy Oomen Mathew, MD, Peter Andrew McCullough, MD, MPH and Jerald Lalaguna Pelayo, MD.
Papers157
Years published2013 to 2025
Dr. Rangaswami's papers by year, 2016 to 2025
Topics Dr. Rangaswami writes about most
- Heart Failure
- Renal Insufficiency, Chronic
- Kidney
- COVID-19
- Diabetes Mellitus, Type 2
- Blood Pressure
- Acute Kidney Injury
- Cardiovascular Diseases
Dr. Rangaswami's most frequent co-authors
- Roy Oomen Mathew, MD28 shared papers
- Peter Andrew McCullough, MD, MPH28 shared papers
- Jerald Lalaguna Pelayo, MD14 shared papers
Recent publications by Dr. Rangaswami
DiureticsHeart Failure
See who Dr. Rangaswami researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Rangaswami works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Janani Rangaswami received $152,359 in industry payments from 2016 to 2025
CMS Open Payments shows 111 general payments to Dr. Rangaswami from 14 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 61% of the total. Boehringer Ingelheim USA, Inc. paid the most, $50,558.
General payments to Dr. Rangaswami by program year, 2016 to 2025
General payments to Dr. Rangaswami by kind, 2016 to 2025
$152.4Kin total
- Consulting fees$92,83761%
- Speaker and faculty fees$31,01220%
- Travel and lodging$24,63516%
- Education speaker fees$2,5502%
- Other$1,3251%
Companies that paid Dr. Rangaswami the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Janani Rangaswami'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) |
| 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. Janani Rangaswami
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. Janani Rangaswami's NPI number?
Dr. Janani Rangaswami's NPI number is 1275748626. It was assigned on May 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Janani Rangaswami?
Dr. Janani Rangaswami is a nephrologist in Washington, District of Columbia. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Janani Rangaswami practice?
Dr. Rangaswami practices at 50 Irving Street N.W., Washington, DC 20422. Dr. Rangaswami's primary practice is Washington DC VA Medical Center in Washington, District of Columbia, part of Veterans Health Administration. Dmand AI also links Dr. Rangaswami to 1 group practice or clinic.
What is Dr. Janani Rangaswami's office phone number?
The practice phone on file for Dr. Rangaswami is (202) 745-8000.
What is Dr. Janani Rangaswami's medical license number?
Dr. Rangaswami holds District of Columbia license MD049393.
Which hospitals is Dr. Janani Rangaswami affiliated with?
Dr. Rangaswami practices at Washington DC VA Medical Center in Washington, District of Columbia.
What medical group is Dr. Janani Rangaswami part of?
Dr. Rangaswami is linked to The GW Medical Faculty Associates.
Does Dr. Janani Rangaswami accept Medicare?
Yes. CMS data shows Dr. Rangaswami billed Medicare for 177 services in 2023.
What services does Dr. Janani Rangaswami bill to Medicare?
In 2023, Dr. Rangaswami's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99222).
What drugs does Dr. Janani Rangaswami prescribe most?
In 2022 Medicare Part D data, Dr. Rangaswami's most prescribed drugs by claims were Amlodipine Besylate, Losartan Potassium and Furosemide.
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Has Dr. Janani Rangaswami received payments from drug or device companies?
CMS Open Payments shows $152,359 in general payments to Dr. Rangaswami from 14 companies from 2016 to 2025. The largest total came from Boehringer Ingelheim USA, Inc.
How long has Dr. Janani Rangaswami been practicing?
Dr. Rangaswami graduated from medical school in 2001, 25 years ago.
Does Dr. Janani Rangaswami do research?
Dmand AI links 157 publications to Dr. Rangaswami, published from 2013 to 2025.
Who does Dr. Janani Rangaswami publish with?
Dr. Rangaswami's most frequent co-authors are Roy Oomen Mathew, MD (28 shared papers), Peter Andrew McCullough, MD, MPH (28 shared papers) and Jerald Lalaguna Pelayo, MD (14 shared papers).
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