Dr. Lalitha Parameswaran, MD, MPH

  • New York, NY
  • Infectious disease specialist
NPI1326291758PAC ID2769625318
Medicare services, 2024
219
Medicare patients, 2024
111
Part D claims, 2024
19
MIPS score, 2024
91
Hospital affiliations
1
Practice address
550 1st Ave, New York, NY 10016
Practice phone
Call (212) 263-1481
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

NYU Langone - Tisch Hospital

New York, New York

See all 7 affiliations

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Dr. Lalitha Parameswaran is an infectious disease specialist in New York, New York

Dr. Parameswaran practices at NYU Langone - Tisch Hospital in New York, New York.

Dr. Parameswaran's NPI, 1326291758, was assigned on October 29, 2008. Dr. Parameswaran holds New York license 269642.

NPI and contact details
Medicare PAC ID
2769625318
NPI enumeration date
October 29, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(212) 263-1481
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
47
Medical school graduation
2005

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

Dr. Lalitha Parameswaran practices at NYU Langone - Tisch Hospital in New York, New York

Dr. Parameswaran's primary practice is NYU Langone - Tisch Hospital, at 550 1st Ave, New York, NY 10016 in New York County. The practice phone is (212) 263-1481.

  • NYU Langone - Tisch Hospital
    550 1st Ave, New York, NY 10016 · New York CountyPhone(212) 263-1481

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

Dr. Lalitha Parameswaran is affiliated with 4 sites of care and 3 medical groups

Dr. Parameswaran's primary practice is NYU Langone - Tisch Hospital in New York, New York. Dr. Parameswaran is also affiliated with Tisch Hospital. The medical group on file is NYU Langone Orthopedic Surgery Associates. Dmand AI also links Dr. Parameswaran to 2 more group practices and clinics and 2 medical groups, each named with a free account.

See all 7 affiliations for Dr. Parameswaran

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. Lalitha Parameswaran's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Parameswaran practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
NYU Langone - Tisch HospitalAvailable with a free account
+3 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Lalitha Parameswaran is one of 825 infectious disease specialists in New York

Infectious disease is Dr. Parameswaran's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Parameswaran is licensed in New York.

Specialties and state licenses

  • Infectious disease, New YorkPrimaryLicense 269642 · taxonomy 207RI0200X

Infectious disease specialists near Dr. Parameswaran

Counts of infectious disease specialists 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. Lalitha Parameswaran billed Medicare for 219 services in 2024

CMS data shows 219 Medicare services from Dr. Parameswaran across 4 procedure codes in 2024, for 111 Medicare patients. Medicare paid $21,895 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024219
Medicare patients111
Paid by Medicare$21,895
Procedure codes4

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

  • 2023
  • 2024
Office and hospital visits
2023: 2602024: 21916%

Dr. Parameswaran compared with the New York median for infectious disease specialists, 2024

  • Dr. Parameswaran
  • New York median
Medicare services
219vs 2388% below
Medicare patients
111vs 13417% below
Part D claims
23vs 16286% below

Medians across 791 infectious disease specialists in New York with Dmand AI profiles that report each measure.

Dr. Parameswaran'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. Parameswaran

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

Dr. Lalitha Parameswaran treated 111 Medicare patients in 2024, average age 76

CMS counts 111 Medicare patients who saw Dr. Parameswaran in 2024. The largest group is 75 to 84, with 39 patients. 75% of them have arthritis, and 75% have high blood pressure. 47% are also on Medicaid. Their average risk score is 3.57, 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. Parameswaran's median patient age at 51, with 56% women.

Medicare patients, 2024111
Average age76
Average risk score3.57
Also on Medicaid47%

Dr. Parameswaran's Medicare patients by age, 2024

Dr. Parameswaran's Medicare patients by sex, 2024

  • Women4541%
  • Men6659%

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

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Chronic kidney disease66%
  5. Ischemic heart disease60%
  6. Diabetes57%
  7. Heart failure52%
  8. Mood disorders48%

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

Dr. Parameswaran's patients across all payers

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

Patient panel by age, all payers

Median age 51

Patient panel by sex, all payers

  • Women56%
  • Men40%

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

Dr. Lalitha Parameswaran wrote 19 Medicare Part D claims in 2024

In 2024, Dr. Parameswaran wrote 19 Medicare Part D claims. 84% of them were for generic drugs. They cover 2 drugs, with $9,231 in total drug cost. In 2021, CMS named 112 claims across 6 drugs.

Part D claims, 202419
Drugs named by CMS2
Total drug cost$9,231

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

  • Generic16 claims84%
  • Brand-name and other3 claims16%

Dr. Parameswaran'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.

Drug classes CMS tracks in Dr. Parameswaran's Part D claims, 2024

  • Antibiotics68%13 of 19 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, 2021 to 2023

  • 2021
  • 2023
Claims for drugs CMS names
2021: 1122023: 2379%

Drugs named by CMS: 2 in 2023, 6 in 2021.

See all prescribing by Dr. Parameswaran

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. Lalitha Parameswaran scored 91 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Parameswaran for performance year 2024, reported as part of a group. Dr. Parameswaran accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Parameswaran as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Parameswaran's MIPS scores, performance year 2024

  • 91of 100Final score
  • 91.8of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 75of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

For MedTech and pharma teams

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Dr. Lalitha Parameswaran received $18 in industry payments in 2024

CMS Open Payments shows 1 general payment to Dr. Parameswaran from 1 drug or device company in 2024. Education make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $18. It also lists 1 research payment totaling $3,200 in 2025.

Companies that paid Dr. Parameswaran the most, 2024 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Parameswaran

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

Sources for Dr. Lalitha Parameswaran'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. Lalitha Parameswaran

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. Lalitha Parameswaran's NPI number?

Dr. Lalitha Parameswaran's NPI number is 1326291758. It was assigned on October 29, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Lalitha Parameswaran?

Dr. Lalitha Parameswaran is an infectious disease specialist in New York, New York. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).

Where does Dr. Lalitha Parameswaran practice?

Dr. Parameswaran practices at 550 1st Ave, New York, NY 10016. Dr. Parameswaran's primary practice is NYU Langone - Tisch Hospital in New York, New York. Dmand AI also links Dr. Parameswaran to 2 group practices and clinics and 2 medical groups.

What is Dr. Lalitha Parameswaran's office phone number?

The practice phone on file for Dr. Parameswaran is (212) 263-1481.

What is Dr. Lalitha Parameswaran's medical license number?

Dr. Parameswaran holds New York license 269642.

Which hospitals is Dr. Lalitha Parameswaran affiliated with?

Dr. Parameswaran is affiliated with Tisch Hospital.

What medical group is Dr. Lalitha Parameswaran part of?

Dr. Parameswaran is linked to NYU Langone Orthopedic Surgery Associates. Dmand AI links Dr. Parameswaran to 2 more medical groups.

Does Dr. Lalitha Parameswaran accept Medicare?

Yes. CMS data shows Dr. Parameswaran billed Medicare for 219 services in 2024, and Dr. Parameswaran accepts Medicare assignment.

Does Dr. Lalitha Parameswaran offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Parameswaran as offering telehealth services.

What is Dr. Lalitha Parameswaran's MIPS score?

Dr. Parameswaran's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.

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How many Medicare patients does Dr. Lalitha Parameswaran see?

CMS counts 111 Medicare patients who saw Dr. Parameswaran in 2024, with an average age of 76.

What services does Dr. Lalitha Parameswaran bill to Medicare?

In 2024, Dr. Parameswaran's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99222).

What drugs does Dr. Lalitha Parameswaran prescribe most?

In 2023 Medicare Part D data, Dr. Parameswaran's most prescribed drugs by claims were Ceftriaxone and Oxacillin Sodium.

Has Dr. Lalitha Parameswaran received payments from drug or device companies?

CMS Open Payments shows $18 in general payments to Dr. Parameswaran from 1 company from 2024 to 2024. The largest total came from Merck Sharp & Dohme Corporation.

How long has Dr. Lalitha Parameswaran been practicing?

Dr. Parameswaran graduated from medical school in 2005, 21 years ago.

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