NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1891799839 MD
Verify on CMS → Michael Griffeth, MD
Ophthalmology Physician in Tooele, Utah.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,082 in Ophthalmology Physician, 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
378
Medicare Part D claims · 86 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
57%
generic claims · 43% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
78.4/100
▼ 5 pts below national avg 83.1 · Above neutral
Industry payments
$64.34
4 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
Michael Griffeth, MD reported a CMS MIPS final score of 78.4/100 - below the 83.1 national average - and filed 378 Medicare Part D claims in 2023.
- 78.4/100
- MIPS score · -5 vs avg
- 378
- Part D claims, 2023
- 57%
- 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.
Michael Griffeth, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
78 27th percentile higher than 27% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Michael Griffeth, MD sits
This provider among ophthalmology physician peers
Across the 9,866 ophthalmology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Michael Griffeth, MD writes more Part D claims than 20% of them and scores higher on MIPS quality than 33% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one ophthalmology physician peer from a representative sample of 60; the gold marker is Michael Griffeth, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Michael Griffeth, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Michael Griffeth, MD?
Near national averagePrimary specialty
Ophthalmology Physician
Medicare Part D claims
378 73% vs specialty avg
MIPS final score
78.4/100 4.7 pts vs avg
Specialty distribution in Utah
How Ophthalmology Physician compares to other specialties among Utah providers
Medicare quality performance, MIPS
Michael Griffeth, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average
- MIPS Final Score
- 78.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Ophthalmology Physician) - 78.4/100 vs national avg 83.1
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).
Michael Griffeth, MD appears in the CMS NPPES registry as an Ophthalmology Physician provider holding MD credentials at 2376 N 400 E STE 101, Tooele, UT, 84074, with a listed phone of (435) 843-8333. NPI 1891799839 was issued on 06/08/2005.
Medicare Part D records for calendar year 2023 show 378 prescription claims written by this provider, covering 86 Medicare beneficiaries and totaling roughly $81K in drug spend, split 43% brand-name and 57% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 78.4/100 for the 2023 performance year (Quality 100, Cost 28), compared with the national average of 83.1.
Ophthalmology Physician is a mid-sized specialty nationwide, with 22,082 enrolled providers across 56 states and an average of 1,420 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 | 1891799839 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/08/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
78.385
Final Score
Avg: 83.1
100
Quality
27.95
Cost
Reporting: Individual
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 Michael Griffeth, MD. Source: openpaymentsdata.cms.gov.
Total received
$64
Largest payer
RxSight 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 · Above average
Michael Griffeth, MD - brand share 43.0%
Ophthalmology Physician average
43% brand-name claims vs 57% generic, on 378 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.
378
Total Claims
$81K
Total Drug Cost
86
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 672
- Total Day Supply
- 18,884
- Brand vs Generic
- 43% brand / 57% generic
- Brand Drug Cost
- $73K
- Generic Drug Cost
- $8K
Patient Demographics
- Average Patient Age
- 73.7 years
- Avg HCC Risk Score
- 1.27
- Gender Split
- 66% female / 34% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Griffeth, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
146 claims
- Lumigan 34
Lumigan
34 claims
- Timolol Maleate 31
Timolol Maleate
31 claims
- Brimonidine Tartra… 20
Brimonidine Tartrate-Timolol
20 claims
- Combigan 18
Combigan
18 claims
- Prednisolone Acetate 17
Prednisolone Acetate
17 claims
- Brimonidine Tartrate 13
Brimonidine Tartrate
13 claims
- Dorzolamide Hcl 11
Dorzolamide Hcl
11 claims
| Drug | Claims |
|---|---|
| Latanoprost | 146 |
| Lumigan Bimatoprost | 34 |
| Timolol Maleate | 31 |
| Brimonidine Tartrate-Timolol Brimonidine Tartrate/Timolol | 20 |
| Combigan Brimonidine Tartrate/Timolol | 18 |
| Prednisolone Acetate | 17 |
| Brimonidine Tartrate | 13 |
| Dorzolamide Hcl | 11 |
| Restasis Cyclosporine | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Michael Griffeth, MD fits within the Ophthalmology Physician landscape nationally.
22,082
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider
Michael Griffeth, MD's 378 claims are below the specialty average of 1,420.
Nearby Ophthalmology Physician Providers in Utah
Other clinicians with the same primary specialty enrolled in Utah, drawn from the same CMS NPPES roster as Griffeth.
Dr. Jason Ahee
MD
St George, UT
Dr. John Alder
M.D.
Murray, UT
Dr. Claron Alldredge
MD
Ogden, UT
Dr. Oren Alldredge
MD
Salt Lake City, UT
Dr. Chad Anderson
M.D.
Cedar City, UT
Compare Ophthalmology Physician 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 Utah medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Ophthalmology Physician 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 Michael Griffeth, MD's specialty? ▼
Michael Griffeth, MD specializes in Ophthalmology Physician and practices in Tooele, Utah. Credentials: MD.
How much does Michael Griffeth, MD prescribe under Medicare Part D? ▼
In 2023, Michael Griffeth, MD wrote 378 Medicare Part D claims totaling $81K in drug costs for 86 beneficiaries.
What is Michael Griffeth, MD's Medicare quality score? ▼
Michael Griffeth, MD has a CMS MIPS Final Score of 78.4/100 (Quality: 100, Cost: 28). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Michael Griffeth, MD located? ▼
Michael Griffeth, MD is located at 2376 N 400 E STE 101, Tooele, UT, 84074. Phone: (435) 843-8333.
What is Michael Griffeth, MD's NPI number? ▼
Michael Griffeth, MD's National Provider Identifier (NPI) is 1891799839, issued on 06/08/2005.
Does Michael Griffeth, MD prescribe more brand-name or generic drugs? ▼
Michael Griffeth, MD's prescribing is 43% brand-name and 57% generic drugs by claim count, with $73K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,082 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does Michael Griffeth, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Griffeth, MD's most frequently prescribed drugs include Latanoprost, Lumigan, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Griffeth, MD accept Medicare? ▼
Michael Griffeth, MD appears in CMS Medicare data with 378 Part D claims and 86 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Griffeth, MD's credentials? ▼
Michael Griffeth, MD's NPI is 1891799839 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
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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.