2026 NPPES data Family Medicine Physician NPI 1235593815
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BENJAMIN DILGER

Family Medicine Physician in ONALASKA, Wisconsin. 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 · 426 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

BENJAMIN DILGER filed 6,102 Medicare Part D claims in 2023 as a Family Medicine Physician in ONALASKA, Wisconsin, prescribing 88% generic.

6K
Part D claims, 2023
88%
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.

BENJAMIN DILGER's Medicare Part D volume vs every U.S. prescriber

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

6,102 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)

BENJAMIN DILGER 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 BENJAMIN DILGER?

Quality data not reported

NPI registry status

Active

Issued 04/08/2016

NPI 1235593815

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

6,102 79% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Wisconsin

How Family Medicine Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Family Medicine Physician share within Wisconsin

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Family Medicine 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 DILGER is a Family Medicine Physician provider practicing in ONALASKA, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1235593815. 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 DILGER appears in the CMS NPPES registry as a Family Medicine Physician provider at 191 THEATER RD, ONALASKA, WI, 54650, with a listed phone of (608) 785-0940. NPI 1235593815 was issued on 04/08/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DILGER 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 6,102 prescription claims written by this provider, covering 426 Medicare beneficiaries and totaling roughly $695K in drug spend, split 12% brand-name and 88% generic by claim count, 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

191 THEATER RD
ONALASKA, WI 54650

Provider Details

NPI 1235593815
Specialty Family Medicine Physician
Gender Male
NPI Issued 04/08/2016

Hospital and facility affiliations

Facilities where BENJAMIN DILGER 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.

MAYO CLINIC HEALTH SYSTEM-SOUTHWEST WISCONSIN REGION INC
ONALASKA, WI

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 · Typical

BENJAMIN DILGER — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 6,102 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.

6,102
Total Claims
$695K
Total Drug Cost
426
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
13,527
Total Day Supply
394,957
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$577K
Generic Drug Cost
$113K
Opioid Claims
144 (2.4% rate)
Antibiotic Claims
76

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
1.40
Gender Split
40% female / 60% male
Age Distribution
<65: 48, 65-74: 203, 75-84: 141, 85+: 34

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
458
Lisinopril
255
Metoprolol Succinate
249
Amlodipine Besylate
229
Losartan Potassium
224
Omeprazole
189
Levothyroxine Sodium
165
Metformin Hcl Er
Metformin Hcl
164
Hydrochlorothiazide
119
Duloxetine Hcl
114

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

Family Medicine Physician Overview

How BENJAMIN DILGER fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

BENJAMIN DILGER's 6,102 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Wisconsin

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BENJAMIN DILGER's specialty?
BENJAMIN DILGER specializes in Family Medicine Physician and practices in ONALASKA, Wisconsin.
How much does BENJAMIN DILGER prescribe under Medicare Part D?
In 2023, BENJAMIN DILGER wrote 6,102 Medicare Part D claims totaling $695K in drug costs for 426 beneficiaries.
Where is BENJAMIN DILGER located?
BENJAMIN DILGER is located at 191 THEATER RD, ONALASKA, WI, 54650. Phone: (608) 785-0940.
What is BENJAMIN DILGER's NPI number?
BENJAMIN DILGER's National Provider Identifier (NPI) is 1235593815, issued on 04/08/2016.
Does BENJAMIN DILGER prescribe more brand-name or generic drugs?
BENJAMIN DILGER's prescribing is 12% brand-name and 88% generic drugs by claim count, with $577K in brand drug costs.
Does BENJAMIN DILGER prescribe opioids?
Yes, BENJAMIN DILGER had 144 opioid claims in 2023 with an opioid prescribing rate of 2.4%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does BENJAMIN DILGER prescribe most often?
Based on 2023 Medicare Part D data, BENJAMIN DILGER's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BENJAMIN DILGER accept Medicare?
BENJAMIN DILGER appears in CMS Medicare data with 6,102 Part D claims and 426 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BENJAMIN DILGER's credentials?
BENJAMIN DILGER's NPI is 1235593815. 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