NPI registry status
Active
2026 NPPES data General Practice Physician NPI 1639388481 M.D.
Verify on CMS → Antonio Castillo, M.D.
General Practice Physician in Davenport, 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 16,725 in General Practice 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
3K
Medicare Part D claims · 176 beneficiaries · General Practice Physician avg: 3K
Industry payments
$176.31
5 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Antonio Castillo, M.D. filed 3,212 Medicare Part D claims in 2023 as a General Practice Physician in Davenport, Florida.
- 3K
- Part D claims, 2023
- $176.31
- industry payments (Sunshine Act)
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.
Antonio Castillo, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,212 Top 11% higher than 89% 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-eligible specialty (heuristic, not verified)
Antonio Castillo, 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 Antonio Castillo, M.D.?
Quality data not reportedPrimary specialty
General Practice Physician
Medicare Part D claims
3,212 12% vs specialty avg
Specialty distribution in Florida
How General Practice 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 General Practice 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).
Antonio Castillo, M.D. appears in the CMS NPPES registry as a General Practice Physician provider holding M.D. credentials at 216 BOXWOOD DR, Davenport, FL, 33837, with a listed phone of (787) 212-9163. NPI 1639388481 was issued on 05/21/2007.
Medicare Part D records for calendar year 2023 show 3,212 prescription claims written by this provider, covering 176 Medicare beneficiaries and totaling roughly $221K in drug spend, with an opioid prescribing rate of 40.9%.
General Practice Physician is a mid-sized specialty nationwide, with 16,725 enrolled providers across 56 states and an average of 2,872 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 | 1639388481 |
|---|---|
| Specialty | General Practice Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/21/2007 |
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 Antonio Castillo, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$176
Largest payer
SPR Therapeutics, 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 Antonio Castillo, M.D.. To verify Antonio Castillo, 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.
3,212
Total Claims
$221K
Total Drug Cost
176
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,257
- Total Day Supply
- 91,676
- Generic Drug Cost
- $78K
- Opioid Claims
- 1,313 (40.9% rate)
Patient Demographics
- Average Patient Age
- 60.8 years
- Avg HCC Risk Score
- 1.86
- Gender Split
- 51% female / 49% male
- Age Distribution
- <65: 108, 65-74: 59, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Antonio Castillo, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
771 claims
- Diclofenac Sodium
Diclofenac Sodium
406 claims
- Cyclobenzaprine Hcl
Cyclobenzaprine Hcl
314 claims
- Morphine Sulfate Er 203
Morphine Sulfate Er
203 claims
- Tizanidine Hcl 192
Tizanidine Hcl
192 claims
- Gabapentin 168
Gabapentin
168 claims
- Meloxicam 140
Meloxicam
140 claims
- Ibuprofen 106
Ibuprofen
106 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 771 |
| Diclofenac Sodium | 406 |
| Cyclobenzaprine Hcl | 314 |
| Morphine Sulfate Er Morphine Sulfate | 203 |
| Tizanidine Hcl | 192 |
| Gabapentin | 168 |
| Meloxicam | 140 |
| Ibuprofen | 106 |
| Hydromorphone Hcl | 99 |
| Olanzapine | 93 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
General Practice Physician Overview
How Antonio Castillo, M.D. fits within the General Practice Physician landscape nationally.
16,725
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider
Antonio Castillo, M.D.'s 3,212 claims are above the specialty average of 2,872.
Nearby General Practice Physician Providers in Florida
Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Castillo.
Dr. Kerolos Abadeer
DO
Orange Park, FL
Dr. Danny Abdallah Samara
MD
Ocala, FL
Khaled Abdelghany
Brooksville, FL
Dr. Pacita Abinales
M.D.
Saint Petersburg, FL
Dr. Richard Abood
MD
Naples, FL
Compare General Practice 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 General Practice 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Florida
Frequently Asked Questions
What is Antonio Castillo, M.D.'s specialty? ▼
Antonio Castillo, M.D. specializes in General Practice Physician and practices in Davenport, Florida. Credentials: M.D..
How much does Antonio Castillo, M.D. prescribe under Medicare Part D? ▼
In 2023, Antonio Castillo, M.D. wrote 3,212 Medicare Part D claims totaling $221K in drug costs for 176 beneficiaries.
Where is Antonio Castillo, M.D. located? ▼
Antonio Castillo, M.D. is located at 216 BOXWOOD DR, Davenport, FL, 33837. Phone: (787) 212-9163.
What is Antonio Castillo, M.D.'s NPI number? ▼
Antonio Castillo, M.D.'s National Provider Identifier (NPI) is 1639388481, issued on 05/21/2007.
Does Antonio Castillo, M.D. prescribe opioids? ▼
Yes, Antonio Castillo, M.D. had 1,313 opioid claims in 2023 with an opioid prescribing rate of 40.9%.
How many General Practice Physician providers are there in the US? ▼
There are 16,725 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does Antonio Castillo, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Antonio Castillo, M.D.'s most frequently prescribed drugs include Oxycodone Hcl, Diclofenac Sodium, Cyclobenzaprine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Antonio Castillo, M.D. accept Medicare? ▼
Antonio Castillo, M.D. appears in CMS Medicare data with 3,212 Part D claims and 176 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Antonio Castillo, M.D.'s credentials? ▼
Antonio Castillo, M.D.'s NPI is 1639388481 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.