2026 NPPES data Hematology (Internal Medicine) Physician NPI 1770548679 M. D.
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Vasundhara Iyengar, M. D.

Hematology (Internal Medicine) Physician in Clermont, Florida.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,451 in Hematology (Internal Medicine) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
24
Medicare Part D claims · Hematology (Internal Medicine) Physician avg: 693
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Vasundhara Iyengar, M. D. filed 24 Medicare Part D claims in 2023 as a Hematology (Internal Medicine) Physician in Clermont, Florida.

24
Part D claims, 2023

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Vasundhara Iyengar, M. D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

24 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic, not verified)

Vasundhara Iyengar, M. D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Vasundhara Iyengar, M. D.?

Quality data not reported

NPI registry status

Active

Issued 04/20/2006

NPI 1770548679

Primary specialty

Hematology (Internal Medicine) Physician

Niche

1,451 US NPIs in this specialty

Medicare Part D claims

24 97% vs specialty avg

2023 prescription claims

Specialty avg: 693

Specialty distribution in Florida

How Hematology (Internal Medicine) Physician compares to other specialties among Florida providers

Florida providers
Behavior Technician - 16.1%Behavior Technician16.1%Mental Health Counselor - 4.8%Mental Health Counselor4.8%Family Nurse Practitioner - 4.5%Family Nurse Practitioner4.5%Pharmacist - 4.2%Pharmacist4.2%Student in an Organized Health Care Education/Training Program - 3.8%Student in an Organized Health Care Education/Training Program3.8%Physical Therapist - 3.1%Physical Therapist3.1%Hematology (Internal Medicine) Physician - 0%Hematology (Internal Medicine) Physician0%
Largest specialties in Florida (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Hematology (Internal Medicine) Physician. Verify directly:

How MIPS and board certification work

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Vasundhara Iyengar, M. D. appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider holding M. D. credentials at 1920 DON WICKHAM DR STE 100, Clermont, FL, 34711, with a listed phone of (352) 394-1150. NPI 1770548679 was issued on 04/20/2006.

Medicare Part D records for calendar year 2023 show 24 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $110K in drug spend.

Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,451 enrolled providers across 50 states and an average of 693 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.

Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1920 DON WICKHAM DR STE 100
Clermont, FL 34711

Provider Details

NPI 1770548679
Specialty Hematology (Internal Medicine) Physician
Credentials M. D.
Gender Female
NPI Issued 04/20/2006

License & disciplinary context - Florida FLDOH 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 - they are NOT specific to Vasundhara Iyengar, M. D.. To verify Vasundhara Iyengar, M. D.'s current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

24
Total Claims
$110K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
43
Total Day Supply
1,320
Generic Drug Cost
$445

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
1.26

Hematology (Internal Medicine) Physician Overview

How Vasundhara Iyengar, M. D. fits within the Hematology (Internal Medicine) Physician landscape nationally.

1,451
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider

Vasundhara Iyengar, M. D.'s 24 claims are below the specialty average of 693.

Nearby Hematology (Internal Medicine) Physician Providers in Florida

Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Iyengar.

Compare Hematology (Internal Medicine) Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Florida medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Hematology (Internal Medicine) Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Vasundhara Iyengar, M. D.'s specialty?
Vasundhara Iyengar, M. D. specializes in Hematology (Internal Medicine) Physician and practices in Clermont, Florida. Credentials: M. D..
How much does Vasundhara Iyengar, M. D. prescribe under Medicare Part D?
In 2023, Vasundhara Iyengar, M. D. wrote 24 Medicare Part D claims totaling $110K in drug costs for N/A beneficiaries.
Where is Vasundhara Iyengar, M. D. located?
Vasundhara Iyengar, M. D. is located at 1920 DON WICKHAM DR STE 100, Clermont, FL, 34711. Phone: (352) 394-1150.
What is Vasundhara Iyengar, M. D.'s NPI number?
Vasundhara Iyengar, M. D.'s National Provider Identifier (NPI) is 1770548679, issued on 04/20/2006.
How many Hematology (Internal Medicine) Physician providers are there in the US?
There are 1,451 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 693 Medicare Part D claims per year.
Does Vasundhara Iyengar, M. D. accept Medicare?
Vasundhara Iyengar, M. D. appears in CMS Medicare data with 24 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Vasundhara Iyengar, M. D.'s credentials?
Vasundhara Iyengar, M. D.'s NPI is 1770548679 with credentials M. D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

View source datasets and methodology notes
Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.