2026 NPPES data Infectious Disease Physician NPI 1639128010 M.D.
Verify on CMS →

HONORIO CACERES, M.D.

Infectious Disease Physician in DUBUQUE, Iowa. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
6K
Medicare Part D claims · 455 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

HONORIO CACERES, M.D. filed 5,620 Medicare Part D claims in 2023 as a Infectious Disease Physician in DUBUQUE, Iowa, prescribing 91% generic.

6K
Part D claims, 2023
91%
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.

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 Top 5% higher than 95% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

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 reported

NPI registry status

Active

Issued 05/10/2006

NPI 1639128010

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

5,620 589% vs specialty avg

2023 prescription claims

Specialty avg: 816

Specialty distribution in Iowa

How Infectious Disease Physician compares to other specialties among Iowa providers

Iowa providers

Infectious Disease Physician share within Iowa

1. Infectious Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Infectious Disease Physician share within Iowa

Specialty board-certification context

Estimated specialty board-certified rate — Infectious Disease Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Infectious Disease Physician ABMS/AOA estimate

Est. board-certified rate (Infectious Disease Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Infectious Disease Physician) — ABMS / AOA estimate

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 a 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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CACERES most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

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 91% generic by claim count, with an opioid prescribing rate of 1.6%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 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

1000 LANGWORTHY ST
DUBUQUE, IA 52001

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%
Specialty average (est.)

9% brand-name claims vs 91% 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 / 91% 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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

8,292
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.

Compare Infectious Disease Physician nationally: see state-by-state distribution →

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 91% 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 8,292 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

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