NPI registry status
Active
2026 NPPES data General Practice Physician NPI 1770004806 MD
Verify on CMS → Barbara Calderon Izquierdo, MD
General Practice Physician in Lutz, 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
2K
Medicare Part D claims · 425 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
84%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Barbara Calderon Izquierdo, MD filed 1,642 Medicare Part D claims in 2023 as a General Practice Physician in Lutz, Florida, prescribing 84% generic.
- 2K
- Part D claims, 2023
- 84%
- 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.
Barbara Calderon Izquierdo, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,642 Top 18% higher than 82% 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)
Barbara Calderon Izquierdo, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Barbara Calderon Izquierdo, MD?
Quality data not reportedPrimary specialty
General Practice Physician
Medicare Part D claims
1,642 43% 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).
Barbara Calderon Izquierdo, MD appears in the CMS NPPES registry as a General Practice Physician provider holding MD credentials at 1563 LAND O LAKES BLVD, Lutz, FL, 33549, with a listed phone of (813) 949-4224. NPI 1770004806 was issued on 06/28/2017.
Medicare Part D records for calendar year 2023 show 1,642 prescription claims written by this provider, covering 425 Medicare beneficiaries and totaling roughly $141K in drug spend, split 14% brand-name and 84% generic by claim count, with an opioid prescribing rate of 1.1%.
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 | 1770004806 |
|---|---|
| Specialty | General Practice Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 06/28/2017 |
Hospital and facility affiliations
Facilities where Barbara Calderon Izquierdo, 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.
Conviva Medical Center Management, LLC
Lutz, 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).
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 Barbara Calderon Izquierdo, MD. To verify Barbara Calderon Izquierdo, 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
Barbara Calderon Izquierdo, MD - brand share 14.0%
General Practice Physician average
14% brand-name claims vs 84% generic, on 1,642 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.
1,642
Total Claims
$141K
Total Drug Cost
425
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,833
- Total Day Supply
- 73,530
- Brand vs Generic
- 14% brand / 84% generic
- Brand Drug Cost
- $118K
- Generic Drug Cost
- $21K
- Opioid Claims
- 18 (1.1% rate)
- Antibiotic Claims
- 152
Patient Demographics
- Average Patient Age
- 71.8 years
- Avg HCC Risk Score
- 1.70
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 69, 65-74: 181, 75-84: 138, 85+: 37
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Barbara Calderon Izquierdo, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
69 claims
- Atorvastatin Calcium
Atorvastatin Calcium
53 claims
- Meloxicam
Meloxicam
47 claims
- Levothyroxine Sodium
Levothyroxine Sodium
46 claims
- Azithromycin
Azithromycin
45 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
43 claims
- Gabapentin
Gabapentin
38 claims
- Methylprednisolone
Methylprednisolone
38 claims
| Drug | Claims |
|---|---|
| Prednisone | 69 |
| Atorvastatin Calcium | 53 |
| Meloxicam | 47 |
| Levothyroxine Sodium | 46 |
| Azithromycin | 45 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 43 |
| Gabapentin | 38 |
| Methylprednisolone | 38 |
| Diclofenac Sodium | 34 |
| Mupirocin | 32 |
* 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 Barbara Calderon Izquierdo, MD 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
Barbara Calderon Izquierdo, MD's 1,642 claims are below 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 Calderon Izquierdo.
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 Barbara Calderon Izquierdo, MD's specialty? ▼
Barbara Calderon Izquierdo, MD specializes in General Practice Physician and practices in Lutz, Florida. Credentials: MD.
How much does Barbara Calderon Izquierdo, MD prescribe under Medicare Part D? ▼
In 2023, Barbara Calderon Izquierdo, MD wrote 1,642 Medicare Part D claims totaling $141K in drug costs for 425 beneficiaries.
Where is Barbara Calderon Izquierdo, MD located? ▼
Barbara Calderon Izquierdo, MD is located at 1563 LAND O LAKES BLVD, Lutz, FL, 33549. Phone: (813) 949-4224.
What is Barbara Calderon Izquierdo, MD's NPI number? ▼
Barbara Calderon Izquierdo, MD's National Provider Identifier (NPI) is 1770004806, issued on 06/28/2017.
Does Barbara Calderon Izquierdo, MD prescribe more brand-name or generic drugs? ▼
Barbara Calderon Izquierdo, MD's prescribing is 14% brand-name and 84% generic drugs by claim count, with $118K in brand drug costs.
Does Barbara Calderon Izquierdo, MD prescribe opioids? ▼
Yes, Barbara Calderon Izquierdo, MD had 18 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
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 Barbara Calderon Izquierdo, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Barbara Calderon Izquierdo, MD's most frequently prescribed drugs include Prednisone, Atorvastatin Calcium, Meloxicam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Barbara Calderon Izquierdo, MD accept Medicare? ▼
Barbara Calderon Izquierdo, MD appears in CMS Medicare data with 1,642 Part D claims and 425 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Barbara Calderon Izquierdo, MD's credentials? ▼
Barbara Calderon Izquierdo, MD's NPI is 1770004806 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.
- 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.