2026 NPPES data Specialist NPI 1023016383 M.D.
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DENNY BALES, M.D.

Specialist in HONOLULU, Hawaii. 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
789
Medicare Part D claims · 87 beneficiaries · Specialist avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: DENNY BALES, M.D. is a Specialist ([object Object]) practicing in HONOLULU, Hawaii with a Medicare Part D prescribing footprint of 789 claims across 87 beneficiaries — 13% brand-name prescribing .

What stands out: DENNY BALES, M.D. filed 789 Medicare Part D claims in 2023 across HONOLULU, Hawaii. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

DENNY BALES, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/11/2005

NPI 1023016383

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

789 46% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Hawaii

How Specialist compares to other specialties among Hawaii providers

Hawaii providers

Specialist share within Hawaii

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Hawaii

Specialty board-certification context

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

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

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

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

DENNY BALES, M.D. is a Specialist provider practicing in HONOLULU, Hawaii, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1023016383. 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.

DENNY BALES, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 1380 LUSITANA ST, HONOLULU, HI, 96813, with a listed phone of (808) 521-7402. NPI 1023016383 was issued on 07/11/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BALES 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 789 prescription claims written by this provider, covering 87 Medicare beneficiaries and totaling roughly $162K in drug spend, split 13% brand-name and 87% 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

1380 LUSITANA ST
HONOLULU, HI 96813

Provider Details

NPI 1023016383
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 07/11/2005

Brand vs generic prescribing mix · Typical

DENNY BALES, M.D. — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 789 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.

789
Total Claims
$162K
Total Drug Cost
87
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,291
Total Day Supply
68,505
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$132K
Generic Drug Cost
$30K

Patient Demographics

Average Patient Age
78.3 years
Avg HCC Risk Score
1.35
Gender Split
36% female / 64% 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
Atorvastatin Calcium
136
Amlodipine Besylate
115
Losartan Potassium
87
Eliquis
Apixaban
57
Metoprolol Succinate
48
Metoprolol Tartrate
40
Ezetimibe
39
Rosuvastatin Calcium
21
Spironolactone
20
Lisinopril
18

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

Specialist Overview

How DENNY BALES, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

DENNY BALES, M.D.'s 789 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Hawaii

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is DENNY BALES, M.D.'s specialty?
DENNY BALES, M.D. specializes in Specialist and practices in HONOLULU, Hawaii. Credentials: M.D..
How much does DENNY BALES, M.D. prescribe under Medicare Part D?
In 2023, DENNY BALES, M.D. wrote 789 Medicare Part D claims totaling $162K in drug costs for 87 beneficiaries.
Where is DENNY BALES, M.D. located?
DENNY BALES, M.D. is located at 1380 LUSITANA ST, HONOLULU, HI, 96813. Phone: (808) 521-7402.
What is DENNY BALES, M.D.'s NPI number?
DENNY BALES, M.D.'s National Provider Identifier (NPI) is 1023016383, issued on 07/11/2005.
Does DENNY BALES, M.D. prescribe more brand-name or generic drugs?
DENNY BALES, M.D.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $132K in brand drug costs.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does DENNY BALES, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DENNY BALES, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DENNY BALES, M.D. accept Medicare?
DENNY BALES, M.D. appears in CMS Medicare data with 789 Part D claims and 87 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DENNY BALES, M.D.'s credentials?
DENNY BALES, M.D.'s NPI is 1023016383 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