2026 NPPES data Psychiatry Physician NPI 1285951830 MD
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PIYUSH TIWARI, MD

Psychiatry 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
4K
Medicare Part D claims · 217 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

PIYUSH TIWARI, MD filed 4,090 Medicare Part D claims in 2023 as a Psychiatry Physician in HONOLULU, Hawaii, prescribing 89% generic.

4K
Part D claims, 2023
89%
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.

PIYUSH TIWARI, MD's Medicare Part D volume vs every U.S. prescriber

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

4,090 Top 8% higher than 92% 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)

PIYUSH TIWARI, 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).

What does the federal data show about PIYUSH TIWARI, MD?

Quality data not reported

NPI registry status

Active

Issued 04/22/2010

NPI 1285951830

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

4,090 294% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Hawaii

How Psychiatry Physician compares to other specialties among Hawaii providers

Hawaii providers

Psychiatry Physician share within Hawaii

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

Specialty board-certification context

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

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

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

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

PIYUSH TIWARI, MD appears in the CMS NPPES registry as a Psychiatry Physician provider holding MD credentials at 1188 BISHOP ST, HONOLULU, HI, 96813, with a listed phone of (808) 425-7718. NPI 1285951830 was issued on 04/22/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TIWARI 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 4,090 prescription claims written by this provider, covering 217 Medicare beneficiaries and totaling roughly $804K in drug spend, split 11% brand-name and 89% 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.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 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 ST
HONOLULU, HI 96813

Provider Details

NPI 1285951830
Specialty Psychiatry Physician
Credentials MD
Gender Male
NPI Issued 04/22/2010

Hospital and facility affiliations

Facilities where PIYUSH TIWARI, 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.

PIYUSH TIWARI MD INC
HONOLULU, HI

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

PIYUSH TIWARI, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 4,090 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.

4,090
Total Claims
$804K
Total Drug Cost
217
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,451
Total Day Supply
152,900
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$672K
Generic Drug Cost
$132K

Patient Demographics

Average Patient Age
61.8 years
Avg HCC Risk Score
1.41
Gender Split
61% female / 39% male
Age Distribution
<65: 108, 65-74: 86, 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 PIYUSH TIWARI, MD 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
Clonazepam
319
Quetiapine Fumarate
293
Alprazolam
230
Olanzapine
205
Risperdal Consta
Risperidone Microspheres
145
Trazodone Hcl
139
Bupropion Xl
Bupropion Hcl
130
Aripiprazole
126
Zolpidem Tartrate
120
Duloxetine Hcl
109

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

Psychiatry Physician Overview

How PIYUSH TIWARI, MD fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

PIYUSH TIWARI, MD's 4,090 claims are above the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Hawaii

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

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

Frequently Asked Questions

What is PIYUSH TIWARI, MD's specialty?
PIYUSH TIWARI, MD specializes in Psychiatry Physician and practices in HONOLULU, Hawaii. Credentials: MD.
How much does PIYUSH TIWARI, MD prescribe under Medicare Part D?
In 2023, PIYUSH TIWARI, MD wrote 4,090 Medicare Part D claims totaling $804K in drug costs for 217 beneficiaries.
Where is PIYUSH TIWARI, MD located?
PIYUSH TIWARI, MD is located at 1188 BISHOP ST, HONOLULU, HI, 96813. Phone: (808) 425-7718.
What is PIYUSH TIWARI, MD's NPI number?
PIYUSH TIWARI, MD's National Provider Identifier (NPI) is 1285951830, issued on 04/22/2010.
Does PIYUSH TIWARI, MD prescribe more brand-name or generic drugs?
PIYUSH TIWARI, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $672K in brand drug costs.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does PIYUSH TIWARI, MD prescribe most often?
Based on 2023 Medicare Part D data, PIYUSH TIWARI, MD's most frequently prescribed drugs include Clonazepam, Quetiapine Fumarate, Alprazolam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PIYUSH TIWARI, MD accept Medicare?
PIYUSH TIWARI, MD appears in CMS Medicare data with 4,090 Part D claims and 217 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PIYUSH TIWARI, MD's credentials?
PIYUSH TIWARI, MD's NPI is 1285951830 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