NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1598143125 M.D.
Verify on CMS → Jeffrey Chi, M.D.
Hematology & Oncology Physician in Ocoee, 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
491
Medicare Part D claims · 82 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$433.33
5 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Jeffrey Chi, M.D. filed 491 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in Ocoee, Florida, prescribing 88% generic.
- 491
- Part D claims, 2023
- 88%
- generic prescribing
- 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.
Jeffrey Chi, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
491 Top 38% higher than 62% of 1,370,886 prescribers
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 certification likely (heuristic, not verified)
Jeffrey Chi, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations - 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 Jeffrey Chi, M.D.?
Quality data not reportedPrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
491 42% vs specialty avg
Specialty distribution in Florida
How Hematology & Oncology Physician compares to other specialties among Florida 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 & Oncology 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).
Jeffrey Chi, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 9900 W COLONIAL DR, Ocoee, FL, 34761, with a listed phone of (321) 843-7440. NPI 1598143125 was issued on 05/15/2015.
Medicare Part D records for calendar year 2023 show 491 prescription claims written by this provider, covering 82 Medicare beneficiaries and totaling roughly $291K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 7.7%.
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 | 1598143125 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/15/2015 |
Hospital and facility affiliations
Facilities where Jeffrey Chi, M.D. 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.
According to CMS billing records, Jeffrey Chi, M.D. is affiliated with 3 Medicare-billing facilities.
Ability Health Services And Rehabilitation LP
Sanford, FL
Ability Health Services, Inc
Sanford, FL
Orlando Health Medical Group Inc
Ocoee, 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 Jeffrey Chi, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$433
Largest payer
BeiGene USA, Inc.
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 Jeffrey Chi, M.D.. To verify Jeffrey Chi, 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.
Brand vs generic prescribing mix · Typical
Jeffrey Chi, M.D. - brand share 12.0%
Hematology & Oncology Physician average
12% brand-name claims vs 88% generic, on 491 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.
491
Total Claims
$291K
Total Drug Cost
82
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 574
- Total Day Supply
- 13,006
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $152K
- Generic Drug Cost
- $140K
- Opioid Claims
- 38 (7.7% rate)
- Antibiotic Claims
- 24
Patient Demographics
- Average Patient Age
- 71.0 years
- Avg HCC Risk Score
- 1.92
- Gender Split
- 44% female / 56% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Jeffrey Chi, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Abiraterone Acetate
Abiraterone Acetate
68 claims
- Prednisone
Prednisone
59 claims
- Prochlorperazine M…
Prochlorperazine Maleate
57 claims
- Eliquis
Eliquis
31 claims
- Ondansetron Hcl
Ondansetron Hcl
29 claims
- Potassium Chloride 17
Potassium Chloride
17 claims
- Hydrocodone-Acetam… 11
Hydrocodone-Acetaminophen
11 claims
| Drug | Claims |
|---|---|
| Abiraterone Acetate | 68 |
| Prednisone | 59 |
| Prochlorperazine Maleate | 57 |
| Eliquis Apixaban | 31 |
| Ondansetron Hcl | 29 |
| Potassium Chloride | 17 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 11 |
* 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 Jeffrey Chi, M.D. 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
Jeffrey Chi, M.D.'s 491 claims are below 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 Chi.
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 Jeffrey Chi, M.D.'s specialty? ▼
Jeffrey Chi, M.D. specializes in Hematology & Oncology Physician and practices in Ocoee, Florida. Credentials: M.D..
How much does Jeffrey Chi, M.D. prescribe under Medicare Part D? ▼
In 2023, Jeffrey Chi, M.D. wrote 491 Medicare Part D claims totaling $291K in drug costs for 82 beneficiaries.
Where is Jeffrey Chi, M.D. located? ▼
Jeffrey Chi, M.D. is located at 9900 W COLONIAL DR, Ocoee, FL, 34761. Phone: (321) 843-7440.
What is Jeffrey Chi, M.D.'s NPI number? ▼
Jeffrey Chi, M.D.'s National Provider Identifier (NPI) is 1598143125, issued on 05/15/2015.
Does Jeffrey Chi, M.D. prescribe more brand-name or generic drugs? ▼
Jeffrey Chi, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $152K in brand drug costs.
Does Jeffrey Chi, M.D. prescribe opioids? ▼
Yes, Jeffrey Chi, M.D. had 38 opioid claims in 2023 with an opioid prescribing rate of 7.7%.
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 Jeffrey Chi, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Jeffrey Chi, M.D.'s most frequently prescribed drugs include Abiraterone Acetate, Prednisone, Prochlorperazine Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jeffrey Chi, M.D. accept Medicare? ▼
Jeffrey Chi, M.D. appears in CMS Medicare data with 491 Part D claims and 82 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jeffrey Chi, M.D.'s credentials? ▼
Jeffrey Chi, M.D.'s NPI is 1598143125 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.