2026 NPPES data Otology & Neurotology Physician NPI 1174526305 M.D.
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LEONARD BERENHOLZ, M.D.

Otology & Neurotology Physician in WARREN, Ohio. 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
419
Medicare Part D claims · 185 beneficiaries · Otology & Neurotology Physician avg: 401
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

LEONARD BERENHOLZ, M.D. filed 419 Medicare Part D claims in 2023 as a Otology & Neurotology Physician in WARREN, Ohio, prescribing 92% generic.

419
Part D claims, 2023
92%
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.

LEONARD BERENHOLZ, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

419 Top 38% higher than 62% 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%). This entry sits in this band. 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 certification likely (heuristic — not verified)

LEONARD BERENHOLZ, 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 LEONARD BERENHOLZ, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/23/2005

NPI 1174526305

Primary specialty

Otology & Neurotology Physician

Rare

333 US NPIs in this specialty

Medicare Part D claims

419 4% vs specialty avg

2023 prescription claims

Specialty avg: 401

Specialty distribution in Ohio

How Otology & Neurotology Physician compares to other specialties among Ohio providers

Ohio providers

Otology & Neurotology Physician share within Ohio

1. Otology & Neurotology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Otology & Neurotology Physician share within Ohio

Specialty board-certification context

Estimated specialty board-certified rate — Otology & Neurotology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Otology & Neurotology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Otology & Neurotology 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).

LEONARD BERENHOLZ, M.D. appears in the CMS NPPES registry as a Otology & Neurotology Physician provider holding M.D. credentials at 3893 E MARKET ST, WARREN, OH, 44484, with a listed phone of (330) 856-4000. NPI 1174526305 was issued on 05/23/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BERENHOLZ 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 419 prescription claims written by this provider, covering 185 Medicare beneficiaries and totaling roughly $17K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 4.8%. 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.

Otology & Neurotology Physician is a narrow specialty nationwide, with 333 enrolled providers across 46 states and an average of 401 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

3893 E MARKET ST
WARREN, OH 44484

Provider Details

NPI 1174526305
Specialty Otology & Neurotology Physician
Credentials M.D.
Gender Male
NPI Issued 05/23/2005

Hospital and facility affiliations

Facilities where LEONARD BERENHOLZ, 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.

WARREN OTOLOGIC GROUP, INC
WARREN, OH

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Ohio OMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~48K Ohio medical licensees in 2023 — they are NOT specific to LEONARD BERENHOLZ, M.D.. To verify LEONARD BERENHOLZ, M.D.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

LEONARD BERENHOLZ, M.D. — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 419 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.

419
Total Claims
$17K
Total Drug Cost
185
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
628
Total Day Supply
13,660
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$10K
Generic Drug Cost
$8K
Opioid Claims
20 (4.8% rate)
Antibiotic Claims
51

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
0.96
Gender Split
62% female / 38% male
Age Distribution
<65: 21, 65-74: 85, 75-84: 62, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

What LEONARD BERENHOLZ, 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
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
84
Triamterene-Hydrochlorothiazid
Triamterene/Hydrochlorothiazid
46
Prednisone
36
Neomycin-Polymyxin-Hc
Neomycin/Polymyxin B/Hydrocort
35
Amoxicillin
31
Ofloxacin
23
Lisinopril
14

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

Otology & Neurotology Physician Overview

How LEONARD BERENHOLZ, M.D. fits within the Otology & Neurotology Physician landscape nationally.

333
Otology & Neurotology Physician Providers in US
46
States with Otology & Neurotology Physician
401
Avg Claims per Provider

LEONARD BERENHOLZ, M.D.'s 419 claims are above the specialty average of 401.

Nearby Otology & Neurotology Physician Providers in Ohio

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

Compare Otology & Neurotology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LEONARD BERENHOLZ, M.D.'s specialty?
LEONARD BERENHOLZ, M.D. specializes in Otology & Neurotology Physician and practices in WARREN, Ohio. Credentials: M.D..
How much does LEONARD BERENHOLZ, M.D. prescribe under Medicare Part D?
In 2023, LEONARD BERENHOLZ, M.D. wrote 419 Medicare Part D claims totaling $17K in drug costs for 185 beneficiaries.
Where is LEONARD BERENHOLZ, M.D. located?
LEONARD BERENHOLZ, M.D. is located at 3893 E MARKET ST, WARREN, OH, 44484. Phone: (330) 856-4000.
What is LEONARD BERENHOLZ, M.D.'s NPI number?
LEONARD BERENHOLZ, M.D.'s National Provider Identifier (NPI) is 1174526305, issued on 05/23/2005.
Does LEONARD BERENHOLZ, M.D. prescribe more brand-name or generic drugs?
LEONARD BERENHOLZ, M.D.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $10K in brand drug costs.
Does LEONARD BERENHOLZ, M.D. prescribe opioids?
Yes, LEONARD BERENHOLZ, M.D. had 20 opioid claims in 2023 with an opioid prescribing rate of 4.8%.
How many Otology & Neurotology Physician providers are there in the US?
There are 333 Otology & Neurotology Physician providers across 46 states in the US. The average Otology & Neurotology Physician provider writes 401 Medicare Part D claims per year.
What drugs does LEONARD BERENHOLZ, M.D. prescribe most often?
Based on 2023 Medicare Part D data, LEONARD BERENHOLZ, M.D.'s most frequently prescribed drugs include Neomycin-Polymyxin-Dexameth, Triamterene-Hydrochlorothiazid, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LEONARD BERENHOLZ, M.D. accept Medicare?
LEONARD BERENHOLZ, M.D. appears in CMS Medicare data with 419 Part D claims and 185 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LEONARD BERENHOLZ, M.D.'s credentials?
LEONARD BERENHOLZ, M.D.'s NPI is 1174526305 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