Dr. Rangashree Varadarajan, MD

  • Hayward, CA
  • Nephrologist
NPI1164884623PAC ID1658667696
Medicare services, 2024
91
Medicare patients, 2024
63
Part D claims, 2024
1,195
Hospital affiliations
2
Industry payments
$133
Practice address
27303 Sleepy Hollow S Ave, Hayward, CA 94545
Practice phone
Call (510) 796-4385
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Fremont Dialysis

Hayward, California

See all 8 affiliations

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Dr. Rangashree Varadarajan is a nephrologist in Hayward, California

Dr. Varadarajan practices at Fremont Dialysis in Hayward, California.

Dr. Varadarajan's NPI, 1164884623, was assigned on March 24, 2016. Dr. Varadarajan graduated from St. George's University School of Medicine in 2014. Dr. Varadarajan holds California license A161306.

NPI and contact details
Medicare PAC ID
1658667696
NPI enumeration date
March 24, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(510) 796-4385
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
38
Medical school graduation
2014

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Rangashree Varadarajan practices at Fremont Dialysis in Hayward, California

Dr. Varadarajan's primary practice is Fremont Dialysis, at 27303 Sleepy Hollow S Ave, Hayward, CA 94545 in Alameda County. The practice phone is (510) 796-4385.

  • Fremont Dialysis
    27303 Sleepy Hollow S Ave, Hayward, CA 94545 · Alameda CountyPhone(510) 796-4385

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Rangashree Varadarajan is affiliated with 6 sites of care and 2 medical groups

Dr. Varadarajan's primary practice is Fremont Dialysis in Hayward, California. Dr. Varadarajan is also affiliated with San Leandro Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Varadarajan to 1 more hospital, 2 dialysis centers, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 8 affiliations for Dr. Varadarajan

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Rangashree Varadarajan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Varadarajan practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Fremont DialysisAvailable with a free account
+5 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Rangashree Varadarajan is one of 1,401 nephrologists in California

Nephrology is Dr. Varadarajan's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Varadarajan is board certified in internal medicine by the American Board of Internal Medicine. Dr. Varadarajan is licensed in California.

Specialties and state licenses

  • Nephrology, CaliforniaPrimaryLicense A161306 · 2019 to 2027 · taxonomy 207RN0300X

Clinical focus

Dmand AI lists acute kidney failure, chronic kidney disease, fluid and electrolyte imbalances and kidney disease among the conditions Dr. Varadarajan treats.

Nephrologists near Dr. Varadarajan

Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.

1,401nephrologists in California
3nephrologists in Hayward

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Rangashree Varadarajan billed Medicare for 91 services in 2024

CMS data shows 91 Medicare services from Dr. Varadarajan across 2 procedure codes in 2024, for 63 Medicare patients. Medicare paid $8,911 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202491
Medicare patients63
Paid by Medicare$8,911
Procedure codes2

Dr. Varadarajan's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 9962024: 9191%
Tests and treatments
2023: 5532024: 0100%

Dr. Varadarajan compared with the California median for nephrologists, 2024

  • Dr. Varadarajan
  • California median
Medicare services
91vs 1,08492% below
Medicare patients
63vs 30779% below
Part D claims
956vs 955Close to median

Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.

Dr. Varadarajan'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.

See all procedures by Dr. Varadarajan

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Rangashree Varadarajan treated 63 Medicare patients in 2024, average age 66

CMS counts 63 Medicare patients who saw Dr. Varadarajan in 2024. The largest group is under 65, with 26 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 59% are also on Medicaid. Their average risk score is 7.12, 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. Varadarajan's median patient age at 69, with 47% women.

Medicare patients, 202463
Average age66
Average risk score7.12
Also on Medicaid59%

Dr. Varadarajan's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Varadarajan's Medicare patients by sex, 2024

  • Women3149%
  • Men3251%

Chronic conditions among Dr. Varadarajan's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes73%
  5. Heart failure62%
  6. Ischemic heart disease56%
  7. Mood disorders41%
  8. Depression38%

Share of Medicare patients with each condition. A patient can have several.

Dr. Varadarajan's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women47%
  • Men52%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Rangashree Varadarajan wrote 1,195 Medicare Part D claims in 2024

In 2024, Dr. Varadarajan wrote 1,195 Medicare Part D claims for 301 patients. 88% of them were for generic drugs. CMS names the drug for 956 of them, across 34 drugs with 11 or more claims each, at $88,140 in total drug cost. In 2023, CMS named 1,065 claims across 35 drugs.

Part D claims, 20241,195
Drugs named by CMS34
Total drug cost$88,140
Part D patients301

Dr. Varadarajan's Part D claims by kind of drug, 2024

  • Generic1,053 claims88%
  • Brand-name125 claims10%
  • Other17 claims1%

Dr. Varadarajan'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. Varadarajan's Part D claims, 2024

  • Antibiotics3%37 of 1,195 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: 1,0652024: 95610%

Drugs named by CMS: 34 in 2024, 35 in 2023.

See all prescribing by Dr. Varadarajan

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 Dr. Rangashree Varadarajan takes part in Medicare

Dr. Varadarajan 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. Rangashree Varadarajan received $133 in industry payments from 2023 to 2024

CMS Open Payments shows 13 general payments to Dr. Varadarajan from 3 drug and device companies from 2023 to 2024. Food and beverage make up the largest share, 86% of the total. Travere Therapeutics, Inc. paid the most, $53.

General payments to Dr. Varadarajan by program year, 2023 to 2024

General payments to Dr. Varadarajan by kind, 2023 to 2024

$133in total
  • Food and beverage$11586%
  • Education$1814%

Companies that paid Dr. Varadarajan the most, 2023 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Varadarajan

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Rangashree Varadarajan graduated from St. George's University School of Medicine

Dr. Varadarajan graduated from St. George's University School of Medicine in 2014. Dr. Varadarajan is a member of ACP and ASN.

  1. Medical schoolSt. George's University School of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in nephrologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Rangashree Varadarajan accepts plans from 6 insurance carriers

Dr. Varadarajan is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Kaiser Permanente and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • Kaiser Permanente
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare

Plan types Dr. Varadarajan accepts, by number of carriers

  1. Medicare5
  2. PPO4
  3. HMO2
  4. POS2
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Rangashree Varadarajan's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Rangashree Varadarajan

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. Rangashree Varadarajan's NPI number?

Dr. Rangashree Varadarajan's NPI number is 1164884623. It was assigned on March 24, 2016, and it is active in the NPI Registry.

What kind of doctor is Dr. Rangashree Varadarajan?

Dr. Rangashree Varadarajan is a nephrologist in Hayward, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. Rangashree Varadarajan practice?

Dr. Varadarajan practices at 27303 Sleepy Hollow S Ave, Hayward, CA 94545. Dr. Varadarajan's primary practice is Fremont Dialysis in Hayward, California. Dmand AI also links Dr. Varadarajan to 1 hospital, 2 dialysis centers, 1 group practice or clinic and 1 medical group.

What is Dr. Rangashree Varadarajan's office phone number?

The practice phone on file for Dr. Varadarajan is (510) 796-4385.

What is Dr. Rangashree Varadarajan's medical license number?

Dr. Varadarajan holds California license A161306.

Which hospitals is Dr. Rangashree Varadarajan affiliated with?

Dr. Varadarajan is affiliated with San Leandro Medical Center. Dmand AI links Dr. Varadarajan to 1 more hospital.

What medical group is Dr. Rangashree Varadarajan part of?

Dr. Varadarajan is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Varadarajan to 1 more medical group.

Does Dr. Rangashree Varadarajan accept Medicare?

Yes. CMS data shows Dr. Varadarajan billed Medicare for 91 services in 2024, and Dr. Varadarajan accepts Medicare assignment.

How many Medicare patients does Dr. Rangashree Varadarajan see?

CMS counts 63 Medicare patients who saw Dr. Varadarajan in 2024, with an average age of 66.

Is Dr. Rangashree Varadarajan board certified?

Yes. Dr. Varadarajan is board certified in internal medicine by the American Board of Internal Medicine.

Show 6 more questionsShow fewer questions

What services does Dr. Rangashree Varadarajan bill to Medicare?

In 2024, Dr. Varadarajan's most billed Medicare services were hospital inpatient care (99233) and hospital inpatient care (99223).

Where did Dr. Rangashree Varadarajan go to medical school?

Dr. Varadarajan graduated from St. George's University School of Medicine in 2014.

What drugs does Dr. Rangashree Varadarajan prescribe most?

In 2024 Medicare Part D data, Dr. Varadarajan's most prescribed drugs by claims were Losartan Potassium, Amlodipine Besylate and Furosemide.

Has Dr. Rangashree Varadarajan received payments from drug or device companies?

CMS Open Payments shows $133 in general payments to Dr. Varadarajan from 3 companies from 2023 to 2024. The largest total came from Travere Therapeutics, Inc.

How long has Dr. Rangashree Varadarajan been practicing?

Dr. Varadarajan graduated from medical school in 2014, 12 years ago.

What insurance does Dr. Rangashree Varadarajan accept?

Dr. Varadarajan is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Kaiser Permanente and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

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