RALPH HAMILTON, M.D.
Ophthalmology Physician in COLUMBIA, Tennessee. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What stands out: RALPH HAMILTON, M.D. reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 806 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.
RALPH HAMILTON, M.D. 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).
RALPH HAMILTON, M.D. at a glance
High performer (top quartile)Primary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in Tennessee
How Ophthalmology Physician compares to other specialties among Tennessee providers
Ophthalmology Physician share within Tennessee
Ophthalmology Physician is one of the more visible NUCC categories in Tennessee
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Medicare quality performance — MIPS
RALPH HAMILTON, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average
- MIPS Final Score
- 100/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Ophthalmology Physician) — 100/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Quality dim CMS Quality category
- Specialty volume Ophthalmology Physician US NPIs
100/100 MIPS final score — 16.9 pts above the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: Ophthalmology Physician. Quality dim: 100.
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).
RALPH HAMILTON, M.D. is a Ophthalmology Physician provider practicing in COLUMBIA, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1184663858. 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.
RALPH HAMILTON, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 1050 N JAMES CAMPBELL BLVD STE 100, COLUMBIA, TN, 38401, with a listed phone of (931) 375-1050. NPI 1184663858 was issued on 06/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAMILTON 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 806 prescription claims written by this provider, covering 202 Medicare beneficiaries and totaling roughly $66K in drug spend, split 30% brand-name and 70% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), compared with the national average of 83.1.
Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 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 | 1184663858 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/06/2006 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm RALPH HAMILTON, M.D.'s current license status, disciplinary history, and board certifications with the Tennessee Board of Medical Examiners in Tennessee before relying on this page for a clinical or care decision.
How we sourced this profile
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
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 RALPH HAMILTON, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$44
Largest payer
Alcon Vision LLC
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
30% brand-name claims vs 70% generic, on 806 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.
Prescribing Breakdown
- 30-Day Fills
- 1,616
- Total Day Supply
- 46,656
- Brand vs Generic
- 30% brand / 70% generic
- Brand Drug Cost
- $47K
- Generic Drug Cost
- $19K
Patient Demographics
- Average Patient Age
- 74.3 years
- Avg HCC Risk Score
- 1.20
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 21, 65-74: 84, 75-84: 68, 85+: 29
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Timolol Maleate | 233 |
| Latanoprost | 231 |
| Prednisolone Acetate | 69 |
| Brimonidine Tartrate | 53 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 48 |
| Lumigan Bimatoprost | 26 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 25 |
| Dorzolamide Hcl | 22 |
| Tobramycin | 14 |
| Bromfenac Sodium | 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 RALPH HAMILTON, M.D. fits within the Ophthalmology Physician landscape nationally.
RALPH HAMILTON, M.D.'s 806 claims are below the specialty average of 1,420.
Nearby Ophthalmology Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as HAMILTON.
Compare Ophthalmology Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
What is RALPH HAMILTON, M.D.'s specialty? ▼
How much does RALPH HAMILTON, M.D. prescribe under Medicare Part D? ▼
What is RALPH HAMILTON, M.D.'s Medicare quality score? ▼
Where is RALPH HAMILTON, M.D. located? ▼
What is RALPH HAMILTON, M.D.'s NPI number? ▼
Does RALPH HAMILTON, M.D. prescribe more brand-name or generic drugs? ▼
How many Ophthalmology Physician providers are there in the US? ▼
What drugs does RALPH HAMILTON, M.D. prescribe most often? ▼
Does RALPH HAMILTON, M.D. accept Medicare? ▼
How can I verify RALPH HAMILTON, M.D.'s credentials? ▼
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.
- 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