NPI registry status
Active
2026 NPPES data Infectious Disease Physician NPI 1639128010 M.D.
Verify on CMS → Honorio Caceres, M.D.
Infectious Disease Physician in Dubuque, Iowa.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,314 in Infectious Disease 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
6K
Medicare Part D claims · 455 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
90%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Honorio Caceres, M.D. filed 5,620 Medicare Part D claims in 2023 as an Infectious Disease Physician in Dubuque, Iowa, prescribing 90% generic.
- 6K
- Part D claims, 2023
- 90%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥95th
- pct by Part D claim volume (lower-bound band)
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.
Honorio Caceres, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,620 ≥ 95th percentile 95% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Honorio Caceres, M.D. 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 Honorio Caceres, M.D.?
Quality data not reportedPrimary specialty
Infectious Disease Physician
Medicare Part D claims
5,620 7× vs specialty avg
Specialty distribution in Iowa
How Infectious Disease Physician compares to other specialties among Iowa 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 Infectious Disease 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).
Honorio Caceres, M.D. appears in the CMS NPPES registry as an Infectious Disease Physician provider holding M.D. credentials at 1000 LANGWORTHY ST, Dubuque, IA, 52001, with a listed phone of (563) 584-3430. NPI 1639128010 was issued on 05/10/2006.
Medicare Part D records for calendar year 2023 show 5,620 prescription claims written by this provider, covering 455 Medicare beneficiaries and totaling roughly $595K in drug spend, split 9% brand-name and 90% generic by claim count, with an opioid prescribing rate of 1.6%.
Infectious Disease Physician is a mid-sized specialty nationwide, with 8,314 enrolled providers across 54 states and an average of 816 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 | 1639128010 |
|---|---|
| Specialty | Infectious Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/10/2006 |
Hospital and facility affiliations
Facilities where Honorio Caceres, 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.
Medical Associates Clinic P C
Dubuque, IA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Honorio Caceres, M.D. - brand share 9.0%
Infectious Disease Physician average
9% brand-name claims vs 90% generic, on 5,620 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.
5,620
Total Claims
$595K
Total Drug Cost
455
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 9,486
- Total Day Supply
- 263,078
- Brand vs Generic
- 9% brand / 90% generic
- Brand Drug Cost
- $395K
- Generic Drug Cost
- $200K
- Opioid Claims
- 92 (1.6% rate)
- Antibiotic Claims
- 618
Patient Demographics
- Average Patient Age
- 74.9 years
- Avg HCC Risk Score
- 1.60
- Gender Split
- 50% female / 50% male
- Age Distribution
- <65: 45, 65-74: 169, 75-84: 169, 85+: 72
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Honorio Caceres, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
323 claims
- Amlodipine Besylate
Amlodipine Besylate
305 claims
- Gabapentin
Gabapentin
210 claims
- Potassium Chloride
Potassium Chloride
196 claims
- Cephalexin
Cephalexin
164 claims
- Furosemide
Furosemide
163 claims
- Lisinopril
Lisinopril
161 claims
- Omeprazole
Omeprazole
143 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 323 |
| Amlodipine Besylate | 305 |
| Gabapentin | 210 |
| Potassium Chloride | 196 |
| Cephalexin | 164 |
| Furosemide | 163 |
| Lisinopril | 161 |
| Omeprazole | 143 |
| Tamsulosin Hcl | 114 |
| Levothyroxine Sodium | 111 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Infectious Disease Physician Overview
How Honorio Caceres, M.D. fits within the Infectious Disease Physician landscape nationally.
8,314
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider
Honorio Caceres, M.D.'s 5,620 claims are above the specialty average of 816.
Nearby Infectious Disease Physician Providers in Iowa
Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Caceres.
Dr. Ahmed Abualfoul
MD
Cedar Rapids, IA
Dr. Sadia Ali
M.D.
Waterloo, IA
Dr. Richard Burger
M.D.
Centerville, IA
Dr. Michael Corbett
MD
Iowa City, IA
Eric Dahlquist
Iowa City, IA
Compare Infectious Disease 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 Iowa medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Infectious Disease 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 Honorio Caceres, M.D.'s specialty? ▼
Honorio Caceres, M.D. specializes in Infectious Disease Physician and practices in Dubuque, Iowa. Credentials: M.D..
How much does Honorio Caceres, M.D. prescribe under Medicare Part D? ▼
In 2023, Honorio Caceres, M.D. wrote 5,620 Medicare Part D claims totaling $595K in drug costs for 455 beneficiaries.
Where is Honorio Caceres, M.D. located? ▼
Honorio Caceres, M.D. is located at 1000 LANGWORTHY ST, Dubuque, IA, 52001. Phone: (563) 584-3430.
What is Honorio Caceres, M.D.'s NPI number? ▼
Honorio Caceres, M.D.'s National Provider Identifier (NPI) is 1639128010, issued on 05/10/2006.
Does Honorio Caceres, M.D. prescribe more brand-name or generic drugs? ▼
Honorio Caceres, M.D.'s prescribing is 9% brand-name and 90% generic drugs by claim count, with $395K in brand drug costs.
Does Honorio Caceres, M.D. prescribe opioids? ▼
Yes, Honorio Caceres, M.D. had 92 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Infectious Disease Physician providers are there in the US? ▼
There are 8,314 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Honorio Caceres, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Honorio Caceres, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Honorio Caceres, M.D. accept Medicare? ▼
Honorio Caceres, M.D. appears in CMS Medicare data with 5,620 Part D claims and 455 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Honorio Caceres, M.D.'s credentials? ▼
Honorio Caceres, M.D.'s NPI is 1639128010 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
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.