2026 NPPES data Cardiovascular Disease Physician NPI 1477170306 MD
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Aaron Sifuentes, MD

Cardiovascular Disease Physician in Iowa City, 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 24,795 in Cardiovascular 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
134
Medicare Part D claims · 43 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.3K
31 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Aaron Sifuentes, MD filed 134 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Iowa City, Iowa, prescribing 85% generic.

134
Part D claims, 2023
85%
generic prescribing
$2.3K
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.

Aaron Sifuentes, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

134 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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-eligible specialty (heuristic — not verified)

Aaron Sifuentes, MD 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 Aaron Sifuentes, MD?

Quality data not reported

NPI registry status

Active

Issued 06/26/2020

NPI 1477170306

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

134 96% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

Specialty distribution in Iowa

How Cardiovascular Disease Physician compares to other specialties among Iowa providers

Iowa providers

Largest specialties in Iowa (% of in-state providers)

Pharmacist — 6.6%Pharmacist6.6%Physical Therapist — 5.5%Physical Therapist5.5%Mental Health Counselor — 5%Mental Health Counselor5%Family Medicine Physician — 4.8%Family Medicine Physician4.8%Chiropractor — 4.2%Chiropractor4.2%Clinical Social Worker — 4.1%Clinical Social Worker4.1%Cardiovascular Disease Physician — 0.3%Cardiovascular Disease Physician0.3%
Largest specialties in Iowa (% of in-state providers)

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Cardiovascular 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).

Aaron Sifuentes, MD appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD credentials at 200 HAWKINS DR, Iowa City, IA, 52242, with a listed phone of (319) 384-8001. NPI 1477170306 was issued on 06/26/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Sifuentes 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 134 prescription claims written by this provider, covering 43 Medicare beneficiaries and totaling roughly $16K in drug spend, split 15% brand-name and 85% generic by claim count. 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.

Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 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

200 HAWKINS DR
Iowa City, IA 52242

Provider Details

NPI 1477170306
Specialty Cardiovascular Disease Physician
Credentials MD
Gender Male
NPI Issued 06/26/2020

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 Aaron Sifuentes, MD. Source: openpaymentsdata.cms.gov.

Total received

$2.3K

Largest payer

Abbott Laboratories

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.

Brand vs generic prescribing mix · Typical

Aaron Sifuentes, MD — brand share 15.0%
Cardiovascular Disease Physician average

15% brand-name claims vs 85% generic, on 134 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.

134
Total Claims
$16K
Total Drug Cost
43
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
280
Total Day Supply
7,861
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$13K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
70.1 years
Avg HCC Risk Score
2.27
Gender Split
35% female / 65% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Eliquis
Apixaban
13

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Cardiovascular Disease Physician Overview

How Aaron Sifuentes, MD fits within the Cardiovascular Disease Physician landscape nationally.

24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider

Aaron Sifuentes, MD's 134 claims are below the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in Iowa

Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Sifuentes.

Compare Cardiovascular 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 Cardiovascular 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.

Frequently Asked Questions

What is Aaron Sifuentes, MD's specialty?
Aaron Sifuentes, MD specializes in Cardiovascular Disease Physician and practices in Iowa City, Iowa. Credentials: MD.
How much does Aaron Sifuentes, MD prescribe under Medicare Part D?
In 2023, Aaron Sifuentes, MD wrote 134 Medicare Part D claims totaling $16K in drug costs for 43 beneficiaries.
Where is Aaron Sifuentes, MD located?
Aaron Sifuentes, MD is located at 200 HAWKINS DR, Iowa City, IA, 52242. Phone: (319) 384-8001.
What is Aaron Sifuentes, MD's NPI number?
Aaron Sifuentes, MD's National Provider Identifier (NPI) is 1477170306, issued on 06/26/2020.
Does Aaron Sifuentes, MD prescribe more brand-name or generic drugs?
Aaron Sifuentes, MD's prescribing is 15% brand-name and 85% generic drugs by claim count, with $13K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US?
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does Aaron Sifuentes, MD prescribe most often?
Based on 2023 Medicare Part D data, Aaron Sifuentes, MD's most frequently prescribed drugs include Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Aaron Sifuentes, MD accept Medicare?
Aaron Sifuentes, MD appears in CMS Medicare data with 134 Part D claims and 43 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Aaron Sifuentes, MD's credentials?
Aaron Sifuentes, MD's NPI is 1477170306 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

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.