2026 NPPES data Hospitalist Physician NPI 1184154106 MD
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BENJAMIN PEREA, MD

Hospitalist Physician in AMES, 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
585
Medicare Part D claims · 160 beneficiaries · Hospitalist Physician avg: 888
What the federal data reveals: BENJAMIN PEREA, MD is a Hospitalist Physician ([object Object]) practicing in AMES, Iowa with a Medicare Part D prescribing footprint of 585 claims across 160 beneficiaries .

What stands out: BENJAMIN PEREA, MD filed 585 Medicare Part D claims in 2023 across AMES, Iowa. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

BENJAMIN PEREA, 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).

BENJAMIN PEREA, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/13/2017

NPI 1184154106

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

585 34% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Iowa

How Hospitalist Physician compares to other specialties among Iowa providers

Iowa providers

Hospitalist Physician share within Iowa

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

Specialty board-certification context

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

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

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

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

BENJAMIN PEREA, MD is a Hospitalist Physician provider practicing in AMES, Iowa, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1184154106. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

BENJAMIN PEREA, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 1111 DUFF AVE, AMES, IA, 50010, with a listed phone of (515) 239-6992. NPI 1184154106 was issued on 06/13/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PEREA 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 585 prescription claims written by this provider, covering 160 Medicare beneficiaries and totaling roughly $72K in drug spend, with an opioid prescribing rate of 2.4%. 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

1111 DUFF AVE
AMES, IA 50010

Provider Details

NPI 1184154106
Specialty Hospitalist Physician
Credentials MD
Gender Male
NPI Issued 06/13/2017

Hospital and facility affiliations

Facilities where BENJAMIN PEREA, 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.

MCFARLAND CLINIC PC
AMES, 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).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

585
Total Claims
$72K
Total Drug Cost
160
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
764
Total Day Supply
19,138
Generic Drug Cost
$7K
Opioid Claims
14 (2.4% rate)
Antibiotic Claims
61

Patient Demographics

Average Patient Age
75.8 years
Avg HCC Risk Score
1.93
Gender Split
52% female / 48% male
Age Distribution
<65: 21, 65-74: 52, 75-84: 54, 85+: 33

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
49
Atorvastatin Calcium
43
Metoprolol Succinate
34
Furosemide
25
Brilinta
Ticagrelor
23
Omeprazole
21
Clopidogrel
Clopidogrel Bisulfate
20
Prednisone
16
Xarelto
Rivaroxaban
16
Lisinopril
15

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

Hospitalist Physician Overview

How BENJAMIN PEREA, MD fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

BENJAMIN PEREA, MD's 585 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Iowa

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

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BENJAMIN PEREA, MD's specialty?
BENJAMIN PEREA, MD specializes in Hospitalist Physician and practices in AMES, Iowa. Credentials: MD.
How much does BENJAMIN PEREA, MD prescribe under Medicare Part D?
In 2023, BENJAMIN PEREA, MD wrote 585 Medicare Part D claims totaling $72K in drug costs for 160 beneficiaries.
Where is BENJAMIN PEREA, MD located?
BENJAMIN PEREA, MD is located at 1111 DUFF AVE, AMES, IA, 50010. Phone: (515) 239-6992.
What is BENJAMIN PEREA, MD's NPI number?
BENJAMIN PEREA, MD's National Provider Identifier (NPI) is 1184154106, issued on 06/13/2017.
Does BENJAMIN PEREA, MD prescribe opioids?
Yes, BENJAMIN PEREA, MD had 14 opioid claims in 2023 with an opioid prescribing rate of 2.4%.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does BENJAMIN PEREA, MD prescribe most often?
Based on 2023 Medicare Part D data, BENJAMIN PEREA, MD's most frequently prescribed drugs include Eliquis, Atorvastatin Calcium, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BENJAMIN PEREA, MD accept Medicare?
BENJAMIN PEREA, MD appears in CMS Medicare data with 585 Part D claims and 160 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BENJAMIN PEREA, MD's credentials?
BENJAMIN PEREA, MD's NPI is 1184154106 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