NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1861475170 MD
Verify on CMS → Ranjith Dissanayake, MD
Hematology & Oncology Physician in Pensacola, 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 11,232 in Hematology & Oncology 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
977
Medicare Part D claims · 224 beneficiaries · Hematology & Oncology Physician avg: 847
MIPS score
90.8/100
▲ 8 pts above national avg 83.1 · Exceptional
Industry payments
$334.76
17 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Ranjith Dissanayake, MD reported a CMS MIPS final score of 90.8/100 - above the 83.1 national average - and filed 977 Medicare Part D claims in 2023.
- 90.8/100
- MIPS score · +8 vs avg
- 977
- Part D claims, 2023
- Likely
- board-certified (heuristic)
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.
Ranjith Dissanayake, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
91 Top 40% higher than 60% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Ranjith Dissanayake, MD sits
This provider among hematology & oncology physician peers
Across the 4,233 hematology & oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ranjith Dissanayake, MD writes more Part D claims than 61% of them and scores higher on MIPS quality than 62% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one hematology & oncology physician peer from a representative sample of 60; the gold marker is Ranjith Dissanayake, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Ranjith Dissanayake, 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).
What does the federal data show about Ranjith Dissanayake, MD?
High performer (top quartile)Primary specialty
Hematology & Oncology Physician
Medicare Part D claims
977 15% vs specialty avg
MIPS final score
90.8/100 7.7 pts vs avg
Specialty distribution in Florida
How Hematology & Oncology Physician compares to other specialties among Florida providers
Medicare quality performance, MIPS
Ranjith Dissanayake, MD's 2023 MIPS final score plotted against the Hematology & Oncology Physician national average
- MIPS Final Score
- 90.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Hematology & Oncology Physician) - 90.8/100 vs national avg 83.1
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).
Ranjith Dissanayake, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 1545 AIRPORT BLVD, Pensacola, FL, 32504, with a listed phone of (850) 416-6933. NPI 1861475170 was issued on 11/22/2005.
Medicare Part D records for calendar year 2023 show 977 prescription claims written by this provider, covering 224 Medicare beneficiaries and totaling roughly $2.7 million in drug spend, with an opioid prescribing rate of 19.2%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 90.8/100 for the 2023 performance year (Quality 81.7), compared with the national average of 83.1.
Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,232 enrolled providers across 54 states and an average of 847 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
Provider Details
| NPI | 1861475170 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/22/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
90.8442
Final Score
Avg: 83.1
81.6885
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Ranjith Dissanayake, 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.
Sacred Heart Health System Inc
Pensacola, 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 Ranjith Dissanayake, MD. Source: openpaymentsdata.cms.gov.
Total received
$335
Largest payer
Celgene Corporation
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 Ranjith Dissanayake, MD. To verify Ranjith Dissanayake, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
977
Total Claims
$2.7M
Total Drug Cost
224
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,396
- Total Day Supply
- 37,224
- Generic Drug Cost
- $67K
- Opioid Claims
- 188 (19.2% rate)
- Antibiotic Claims
- 37
Patient Demographics
- Average Patient Age
- 70.4 years
- Avg HCC Risk Score
- 2.25
- Gender Split
- 66% female / 34% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ranjith Dissanayake, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Anastrozole
Anastrozole
128 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
63 claims
- Ondansetron Hcl
Ondansetron Hcl
52 claims
- Hydroxyurea 51
Hydroxyurea
51 claims
- Oxycodone Hcl 47
Oxycodone Hcl
47 claims
- Ibrance 32
Ibrance
32 claims
- Letrozole 32
Letrozole
32 claims
- Pomalyst 31
Pomalyst
31 claims
| Drug | Claims |
|---|---|
| Anastrozole | 128 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 63 |
| Ondansetron Hcl | 52 |
| Hydroxyurea | 51 |
| Oxycodone Hcl | 47 |
| Ibrance Palbociclib | 32 |
| Letrozole | 32 |
| Pomalyst Pomalidomide | 31 |
| Dexamethasone | 28 |
| Revlimid Lenalidomide | 27 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hematology & Oncology Physician Overview
How Ranjith Dissanayake, MD fits within the Hematology & Oncology Physician landscape nationally.
11,232
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Ranjith Dissanayake, MD's 977 claims are above the specialty average of 847.
Nearby Hematology & Oncology Physician Providers in Florida
Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Dissanayake.
Dr. Nayef Abdel-Razeq
MD
Jacksonville, FL
Dr. Ahmed Abdelhakeem
MD
Jacksonville, FL
Dr. Anna Abraham
MD
Pembroke Pines, FL
Dr. Yousif Abubakr
MD
Jacksonville, FL
Dr. Ziad Abuhelwa
MD
Tampa, FL
Compare Hematology & Oncology 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 & Oncology 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.
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Frequently Asked Questions
What is Ranjith Dissanayake, MD's specialty? ▼
Ranjith Dissanayake, MD specializes in Hematology & Oncology Physician and practices in Pensacola, Florida. Credentials: MD.
How much does Ranjith Dissanayake, MD prescribe under Medicare Part D? ▼
In 2023, Ranjith Dissanayake, MD wrote 977 Medicare Part D claims totaling $2.7M in drug costs for 224 beneficiaries.
What is Ranjith Dissanayake, MD's Medicare quality score? ▼
Ranjith Dissanayake, MD has a CMS MIPS Final Score of 90.8/100 (Quality: 81.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ranjith Dissanayake, MD located? ▼
Ranjith Dissanayake, MD is located at 1545 AIRPORT BLVD, Pensacola, FL, 32504. Phone: (850) 416-6933.
What is Ranjith Dissanayake, MD's NPI number? ▼
Ranjith Dissanayake, MD's National Provider Identifier (NPI) is 1861475170, issued on 11/22/2005.
Does Ranjith Dissanayake, MD prescribe opioids? ▼
Yes, Ranjith Dissanayake, MD had 188 opioid claims in 2023 with an opioid prescribing rate of 19.2%.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,232 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does Ranjith Dissanayake, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Ranjith Dissanayake, MD's most frequently prescribed drugs include Anastrozole, Hydrocodone-Acetaminophen, Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ranjith Dissanayake, MD accept Medicare? ▼
Ranjith Dissanayake, MD appears in CMS Medicare data with 977 Part D claims and 224 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ranjith Dissanayake, MD's credentials? ▼
Ranjith Dissanayake, MD's NPI is 1861475170 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
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.
- 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
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.