2026 NPPES data Pain Medicine (Psychiatry & Neurology) Physician NPI 1225135130 M.D.
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ROBERT HYMAN, M.D.

Pain Medicine (Psychiatry & Neurology) Physician 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
666
Medicare Part D claims · 57 beneficiaries · Pain Medicine (Psychiatry & Neurology) Physician avg: 2K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ROBERT HYMAN, M.D. filed 666 Medicare Part D claims in 2023 as a Pain Medicine (Psychiatry & Neurology) Physician in HONOLULU, Hawaii, prescribing 90% generic.

666
Part D claims, 2023
90%
generic prescribing

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.

ROBERT HYMAN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

666 Top 31% higher than 69% 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%). This entry sits in this band. 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)

ROBERT HYMAN, M.D. 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 ROBERT HYMAN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 09/20/2006

NPI 1225135130

Primary specialty

Pain Medicine (Psychiatry & Neurology) Physician

Rare

161 US NPIs in this specialty

Medicare Part D claims

666 61% vs specialty avg

2023 prescription claims

Specialty avg: 1,690

Specialty distribution in Hawaii

How Pain Medicine (Psychiatry & Neurology) Physician compares to other specialties among Hawaii providers

Hawaii providers

Pain Medicine (Psychiatry & Neurology) Physician share within Hawaii

1. Pain Medicine (Psychiatry & Neurology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pain Medicine (Psychiatry & Neurology) Physician share within Hawaii

Specialty board-certification context

Estimated specialty board-certified rate — Pain Medicine (Psychiatry & Neurology) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Pain Medicine (Psychiatry & Neurology) Physician ABMS/AOA estimate

Est. board-certified rate (Pain Medicine (Psychiatry & Neurology) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pain Medicine (Psychiatry & Neurology) 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).

ROBERT HYMAN, M.D. appears in the CMS NPPES registry as a Pain Medicine (Psychiatry & Neurology) Physician provider holding M.D. credentials at 1188 BISHOP STREET,, HONOLULU, HI, 96813, with a listed phone of (808) 738-5601. NPI 1225135130 was issued on 09/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HYMAN 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 666 prescription claims written by this provider, covering 57 Medicare beneficiaries and totaling roughly $37K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 36.9%. 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.

Pain Medicine (Psychiatry & Neurology) Physician is a narrow specialty nationwide, with 161 enrolled providers across 39 states and an average of 1,690 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

1188 BISHOP STREET,
HONOLULU, HI 96813

Provider Details

NPI 1225135130
Specialty Pain Medicine (Psychiatry & Neurology) Physician
Credentials M.D.
Gender Male
NPI Issued 09/20/2006

Brand vs generic prescribing mix · Typical

ROBERT HYMAN, M.D. — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 666 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.

666
Total Claims
$37K
Total Drug Cost
57
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
682
Total Day Supply
14,163
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$20K
Generic Drug Cost
$17K
Opioid Claims
246 (36.9% rate)

Patient Demographics

Average Patient Age
59.7 years
Avg HCC Risk Score
1.45
Gender Split
47% female / 53% male
Age Distribution
<65: 33, 65-74: 22, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What ROBERT HYMAN, 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
Alprazolam
101
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
56
Oxycodone Hcl
53
Diazepam
52
Morphine Sulfate Er
Morphine Sulfate
50
Morphine Sulfate
39
Venlafaxine Hcl Er
Venlafaxine Hcl
32
Zolpidem Tartrate
32
Olanzapine
26
Clonazepam
25

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

Pain Medicine (Psychiatry & Neurology) Physician Overview

How ROBERT HYMAN, M.D. fits within the Pain Medicine (Psychiatry & Neurology) Physician landscape nationally.

161
Pain Medicine (Psychiatry & Neurology) Physician Providers in US
39
States with Pain Medicine (Psychiatry & Neurology) Physician
1,690
Avg Claims per Provider

ROBERT HYMAN, M.D.'s 666 claims are below the specialty average of 1,690.

Frequently Asked Questions

What is ROBERT HYMAN, M.D.'s specialty?
ROBERT HYMAN, M.D. specializes in Pain Medicine (Psychiatry & Neurology) Physician and practices in HONOLULU, Hawaii. Credentials: M.D..
How much does ROBERT HYMAN, M.D. prescribe under Medicare Part D?
In 2023, ROBERT HYMAN, M.D. wrote 666 Medicare Part D claims totaling $37K in drug costs for 57 beneficiaries.
Where is ROBERT HYMAN, M.D. located?
ROBERT HYMAN, M.D. is located at 1188 BISHOP STREET,, HONOLULU, HI, 96813. Phone: (808) 738-5601.
What is ROBERT HYMAN, M.D.'s NPI number?
ROBERT HYMAN, M.D.'s National Provider Identifier (NPI) is 1225135130, issued on 09/20/2006.
Does ROBERT HYMAN, M.D. prescribe more brand-name or generic drugs?
ROBERT HYMAN, M.D.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $20K in brand drug costs.
Does ROBERT HYMAN, M.D. prescribe opioids?
Yes, ROBERT HYMAN, M.D. had 246 opioid claims in 2023 with an opioid prescribing rate of 36.9%.
How many Pain Medicine (Psychiatry & Neurology) Physician providers are there in the US?
There are 161 Pain Medicine (Psychiatry & Neurology) Physician providers across 39 states in the US. The average Pain Medicine (Psychiatry & Neurology) Physician provider writes 1,690 Medicare Part D claims per year.
What drugs does ROBERT HYMAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ROBERT HYMAN, M.D.'s most frequently prescribed drugs include Alprazolam, Hydrocodone-Acetaminophen, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ROBERT HYMAN, M.D. accept Medicare?
ROBERT HYMAN, M.D. appears in CMS Medicare data with 666 Part D claims and 57 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBERT HYMAN, M.D.'s credentials?
ROBERT HYMAN, M.D.'s NPI is 1225135130 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