2026 NPPES data Hematology (Internal Medicine) Physician NPI 1861454696 MD
Verify on CMS →

ANANTH IYER, MD

Hematology (Internal Medicine) Physician in ST PETERSBURG, Florida. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
559
Medicare Part D claims · 120 beneficiaries · Hematology (Internal Medicine) Physician avg: 693
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · [object Object]
Industry payments
$3.8K
165 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ANANTH IYER, MD is a Hematology (Internal Medicine) Physician ([object Object]) practicing in ST PETERSBURG, Florida with a Medicare Part D prescribing footprint of 559 claims across 120 beneficiaries — 14% brand-name prescribing . Their CMS MIPS Final Score of 75/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $3.8K across 165 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ANANTH IYER, MD reported a CMS MIPS final score of 75 out of 100, below the 83.1 national average, and filed 559 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ANANTH IYER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ANANTH IYER, MD at a glance

Below national average

NPI registry status

Active

Issued 04/05/2006

NPI 1861454696

Primary specialty

Hematology (Internal Medicine) Physician

Niche

1,436 US NPIs in this specialty

Medicare Part D claims

559 19% vs specialty avg

2023 prescription claims

Specialty avg: 693

MIPS final score

75/100 8.099999999999994% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Florida

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

Florida providers

Hematology (Internal Medicine) Physician share within Florida

1. Hematology (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hematology (Internal Medicine) Physician share within Florida

Medicare quality performance — MIPS

ANANTH IYER, MD's 2023 MIPS final score plotted against the Hematology (Internal Medicine) Physician national average

Below national average
MIPS Final Score
75/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hematology (Internal Medicine) Physician) — 75/100 vs national avg 83.1

0%100%National avg83%75%
MIPS final score (Hematology (Internal Medicine) Physician) — 75/100 vs national avg 83.1

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).

ANANTH IYER, MD is a Hematology (Internal Medicine) Physician provider practicing in ST PETERSBURG, Florida, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1861454696. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ANANTH IYER, MD appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider holding MD credentials at 5767 49TH ST N, ST PETERSBURG, FL, 33709, with a listed phone of (727) 522-0558. NPI 1861454696 was issued on 04/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what IYER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 559 prescription claims written by this provider, covering 120 Medicare beneficiaries and totaling roughly $507K in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 5.4%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.

Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,436 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

5767 49TH ST N
ST PETERSBURG, FL 33709

Provider Details

NPI 1861454696
Specialty Hematology (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 04/05/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

75
Final Score
Avg: 83.1

Reporting: Group practice

Hospital and facility affiliations

Facilities where ANANTH IYER, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

FLORIDA CANCER SPECIALISTS AND RESEARCH INSTITUTE, LLC
ST PETERSBURG, FL

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for ANANTH IYER, MD. Source: openpaymentsdata.cms.gov.

Total received

$3.8K

Largest payer

AstraZeneca Pharmaceuticals LP

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 ANANTH IYER, MD. To verify ANANTH IYER, MD'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.

Brand vs generic prescribing mix · Typical

ANANTH IYER, MD — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 559 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

559
Total Claims
$507K
Total Drug Cost
120
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
837
Total Day Supply
22,245
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$453K
Generic Drug Cost
$54K
Opioid Claims
30 (5.4% rate)
Antibiotic Claims
28

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
2.50
Gender Split
73% female / 27% male
Age Distribution
<65: 17, 65-74: 49, 75-84: 43, 85+: 11

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Anastrozole
50
Ondansetron Odt
Ondansetron
35
Hydroxyurea
34
Xarelto
Rivaroxaban
32
Mirtazapine
27
Warfarin Sodium
24
Prochlorperazine Maleate
23
Gabapentin
22
Revlimid
Lenalidomide
20
Prednisone
17

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Hematology (Internal Medicine) Physician Overview

How ANANTH IYER, MD fits within the Hematology (Internal Medicine) Physician landscape nationally.

1,436
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider

ANANTH IYER, MD's 559 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 IYER.

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

Frequently Asked Questions

What is ANANTH IYER, MD's specialty?
ANANTH IYER, MD specializes in Hematology (Internal Medicine) Physician and practices in ST PETERSBURG, Florida. Credentials: MD.
How much does ANANTH IYER, MD prescribe under Medicare Part D?
In 2023, ANANTH IYER, MD wrote 559 Medicare Part D claims totaling $507K in drug costs for 120 beneficiaries.
What is ANANTH IYER, MD's Medicare quality score?
ANANTH IYER, MD has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ANANTH IYER, MD located?
ANANTH IYER, MD is located at 5767 49TH ST N, ST PETERSBURG, FL, 33709. Phone: (727) 522-0558.
What is ANANTH IYER, MD's NPI number?
ANANTH IYER, MD's National Provider Identifier (NPI) is 1861454696, issued on 04/05/2006.
Does ANANTH IYER, MD prescribe more brand-name or generic drugs?
ANANTH IYER, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $453K in brand drug costs.
Does ANANTH IYER, MD prescribe opioids?
Yes, ANANTH IYER, MD had 30 opioid claims in 2023 with an opioid prescribing rate of 5.4%.
How many Hematology (Internal Medicine) Physician providers are there in the US?
There are 1,436 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.
What drugs does ANANTH IYER, MD prescribe most often?
Based on 2023 Medicare Part D data, ANANTH IYER, MD's most frequently prescribed drugs include Anastrozole, Ondansetron Odt, Hydroxyurea. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANANTH IYER, MD accept Medicare?
ANANTH IYER, MD appears in CMS Medicare data with 559 Part D claims and 120 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANANTH IYER, MD's credentials?
ANANTH IYER, MD's NPI is 1861454696 with credentials MD. 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

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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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