NPI registry status
Active
2026 NPPES data Legal Medicine NPI 1780774174 M.D.
Verify on CMS → Marcus Griffin, M.D.
Legal Medicine in Kihei, Hawaii.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,065 in Legal Medicine, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 180 beneficiaries · Legal Medicine avg: 3K
Generic prescribing
91%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$155.64
3 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Marcus Griffin, M.D. filed 3,102 Medicare Part D claims in 2023 as a Legal Medicine in Kihei, Hawaii, prescribing 91% generic.
- 3K
- Part D claims, 2023
- 91%
- generic prescribing
- $155.64
- industry payments (Sunshine Act)
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.
Marcus Griffin, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,102 Top 11% higher than 89% of 1,370,886 prescribers
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
What does the federal data show about Marcus Griffin, M.D.?
Quality data not reportedPrimary specialty
Legal Medicine
Medicare Part D claims
3,102 10% vs specialty avg
Specialty distribution in Hawaii
How Legal Medicine compares to other specialties among Hawaii providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Legal Medicine. Verify directly:
How MIPS and board certification work
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).
Marcus Griffin, M.D. appears in the CMS NPPES registry as a Legal Medicine provider holding M.D. credentials at 221 PIIKEA AVE # A, Kihei, HI, 96753, with a listed phone of (808) 270-0491. NPI 1780774174 was issued on 10/13/2006.
Medicare Part D records for calendar year 2023 show 3,102 prescription claims written by this provider, covering 180 Medicare beneficiaries and totaling roughly $253K in drug spend, split 7% brand-name and 91% generic by claim count, with an opioid prescribing rate of 4.2%.
Legal Medicine is a narrow specialty nationwide, with 1,065 enrolled providers across 51 states and an average of 2,821 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
Provider Details
| NPI | 1780774174 |
|---|---|
| Specialty | Legal Medicine |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 10/13/2006 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Marcus Griffin, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$156
Largest payer
Novo Nordisk Inc
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Generic-heavy
Marcus Griffin, M.D. - brand share 7.0%
Legal Medicine average
7% brand-name claims vs 91% generic, on 3,102 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.
3,102
Total Claims
$253K
Total Drug Cost
180
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,300
- Total Day Supply
- 179,660
- Brand vs Generic
- 7% brand / 91% generic
- Brand Drug Cost
- $183K
- Generic Drug Cost
- $68K
- Opioid Claims
- 131 (4.2% rate)
- Antibiotic Claims
- 141
Patient Demographics
- Average Patient Age
- 76.3 years
- Avg HCC Risk Score
- 0.92
- Gender Split
- 49% female / 51% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Marcus Griffin, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
149 claims
- Famotidine
Famotidine
114 claims
- Gabapentin
Gabapentin
108 claims
- Amlodipine Besylate
Amlodipine Besylate
102 claims
- Zolpidem Tartrate
Zolpidem Tartrate
78 claims
- Levothyroxine Sodium
Levothyroxine Sodium
69 claims
- Escitalopram Oxalate
Escitalopram Oxalate
61 claims
- Trazodone Hcl 58
Trazodone Hcl
58 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 149 |
| Famotidine | 114 |
| Gabapentin | 108 |
| Amlodipine Besylate | 102 |
| Zolpidem Tartrate | 78 |
| Levothyroxine Sodium | 69 |
| Escitalopram Oxalate | 61 |
| Trazodone Hcl | 58 |
| Metformin Hcl | 57 |
| Hydrochlorothiazide | 55 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Legal Medicine Overview
How Marcus Griffin, M.D. fits within the Legal Medicine landscape nationally.
1,065
Legal Medicine Providers in US
51
States with Legal Medicine
2,821
Avg Claims per Provider
Marcus Griffin, M.D.'s 3,102 claims are above the specialty average of 2,821.
Nearby Legal Medicine Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Griffin.
Dr. Harry Ashe
M.D.
Kahuku, HI
Dr. Irving Brown
M.D.
Wailuku, HI
Dr. Leonardo Cortez
M.D.
Kailua Kona, HI
Dr. Jay Faris
M.D.
Wailuku, HI
Dr. Allan Nathan
M.D.
Kahului, HI
Compare Legal Medicine nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Hawaii medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Legal Medicine peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Marcus Griffin, M.D.'s specialty? ▼
Marcus Griffin, M.D. specializes in Legal Medicine and practices in Kihei, Hawaii. Credentials: M.D..
How much does Marcus Griffin, M.D. prescribe under Medicare Part D? ▼
In 2023, Marcus Griffin, M.D. wrote 3,102 Medicare Part D claims totaling $253K in drug costs for 180 beneficiaries.
Where is Marcus Griffin, M.D. located? ▼
Marcus Griffin, M.D. is located at 221 PIIKEA AVE # A, Kihei, HI, 96753. Phone: (808) 270-0491.
What is Marcus Griffin, M.D.'s NPI number? ▼
Marcus Griffin, M.D.'s National Provider Identifier (NPI) is 1780774174, issued on 10/13/2006.
Does Marcus Griffin, M.D. prescribe more brand-name or generic drugs? ▼
Marcus Griffin, M.D.'s prescribing is 7% brand-name and 91% generic drugs by claim count, with $183K in brand drug costs.
Does Marcus Griffin, M.D. prescribe opioids? ▼
Yes, Marcus Griffin, M.D. had 131 opioid claims in 2023 with an opioid prescribing rate of 4.2%.
How many Legal Medicine providers are there in the US? ▼
There are 1,065 Legal Medicine providers across 51 states in the US. The average Legal Medicine provider writes 2,821 Medicare Part D claims per year.
What drugs does Marcus Griffin, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Marcus Griffin, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Famotidine, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marcus Griffin, M.D. accept Medicare? ▼
Marcus Griffin, M.D. appears in CMS Medicare data with 3,102 Part D claims and 180 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marcus Griffin, M.D.'s credentials? ▼
Marcus Griffin, M.D.'s NPI is 1780774174 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.