2026 NPPES data Optometrist NPI 1366404824 O.D.
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REGINA HAMLIN, O.D.

Optometrist in AIKEN, South Carolina. 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
328
Medicare Part D claims · 199 beneficiaries · Optometrist avg: 257
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
98.0632/100
▲ 15 pts above national avg 83.1 · [object Object]
Industry payments
$151.09
8 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: REGINA HAMLIN, O.D. is a Optometrist ([object Object]) practicing in AIKEN, South Carolina with a Medicare Part D prescribing footprint of 328 claims across 199 beneficiaries — 38% brand-name prescribing . Their CMS MIPS Final Score of 98.0632/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $151.09 across 8 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: REGINA HAMLIN, O.D. reported a CMS MIPS final score of 98.0632 out of 100, above the 83.1 national average, and filed 328 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

REGINA HAMLIN, O.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 04/03/2006

NPI 1366404824

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

328 28% vs specialty avg

2023 prescription claims

Specialty avg: 257

MIPS final score

98.0632/100 14.9632% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in South Carolina

How Optometrist compares to other specialties among South Carolina providers

South Carolina providers

Optometrist share within South Carolina

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within South Carolina

Medicare quality performance — MIPS

REGINA HAMLIN, O.D.'s 2023 MIPS final score plotted against the Optometrist national average

High performer (top quartile)
MIPS Final Score
98.0632/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Optometrist) — 98.0632/100 vs national avg 83.1

0%100%National avg83%98.1%
MIPS final score (Optometrist) — 98.0632/100 vs national avg 83.1

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).

REGINA HAMLIN, O.D. is a Optometrist provider practicing in AIKEN, South Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: O.D.. NPI: 1366404824. 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.

REGINA HAMLIN, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 110 PEPPER HILL WAY, AIKEN, SC, 29801, with a listed phone of (803) 642-6060. NPI 1366404824 was issued on 04/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAMLIN 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 328 prescription claims written by this provider, covering 199 Medicare beneficiaries and totaling roughly $85K in drug spend, split 38% brand-name and 62% 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 98.0632/100 for the 2023 performance year (Quality 100, Cost 93.544), compared with the national average of 83.1.

Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 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

110 PEPPER HILL WAY
AIKEN, SC 29801

Provider Details

NPI 1366404824
Specialty Optometrist
Credentials O.D.
Gender Female
NPI Issued 04/03/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

98.0632
Final Score
Avg: 83.1
100
Quality
93.544
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where REGINA HAMLIN, O.D. 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.

AIKEN OPHTHALMOLOGY PC
AIKEN, SC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 REGINA HAMLIN, O.D.. Source: openpaymentsdata.cms.gov.

Total received

$151

Largest payer

Tarsus Pharmaceuticals, 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

REGINA HAMLIN, O.D. — brand share 38.0%
Specialty average (est.)

38% brand-name claims vs 62% generic, on 328 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.

328
Total Claims
$85K
Total Drug Cost
199
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
483
Total Day Supply
11,610
Brand vs Generic
38% brand / 62% generic
Brand Drug Cost
$75K
Generic Drug Cost
$10K
Antibiotic Claims
39

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
1.23
Gender Split
68% female / 32% male
Age Distribution
<65: 14, 65-74: 101, 75-84: 61, 85+: 23

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
53
Latanoprost
46
Prednisolone Acetate
39
Restasis
Cyclosporine
38
Cyclosporine
17
Moxifloxacin
Moxifloxacin Hcl
14
Timolol Maleate
14
Doxycycline Hyclate
13
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
12
Erythromycin
Erythromycin Base
12

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

Optometrist Overview

How REGINA HAMLIN, O.D. fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

REGINA HAMLIN, O.D.'s 328 claims are above the specialty average of 257.

Nearby Optometrist Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as HAMLIN.

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is REGINA HAMLIN, O.D.'s specialty?
REGINA HAMLIN, O.D. specializes in Optometrist and practices in AIKEN, South Carolina. Credentials: O.D..
How much does REGINA HAMLIN, O.D. prescribe under Medicare Part D?
In 2023, REGINA HAMLIN, O.D. wrote 328 Medicare Part D claims totaling $85K in drug costs for 199 beneficiaries.
What is REGINA HAMLIN, O.D.'s Medicare quality score?
REGINA HAMLIN, O.D. has a CMS MIPS Final Score of 98.0632/100 (Quality: 100, Cost: 93.544). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is REGINA HAMLIN, O.D. located?
REGINA HAMLIN, O.D. is located at 110 PEPPER HILL WAY, AIKEN, SC, 29801. Phone: (803) 642-6060.
What is REGINA HAMLIN, O.D.'s NPI number?
REGINA HAMLIN, O.D.'s National Provider Identifier (NPI) is 1366404824, issued on 04/03/2006.
Does REGINA HAMLIN, O.D. prescribe more brand-name or generic drugs?
REGINA HAMLIN, O.D.'s prescribing is 38% brand-name and 62% generic drugs by claim count, with $75K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does REGINA HAMLIN, O.D. prescribe most often?
Based on 2023 Medicare Part D data, REGINA HAMLIN, O.D.'s most frequently prescribed drugs include Neomycin-Polymyxin-Dexameth, Latanoprost, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does REGINA HAMLIN, O.D. accept Medicare?
REGINA HAMLIN, O.D. appears in CMS Medicare data with 328 Part D claims and 199 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify REGINA HAMLIN, O.D.'s credentials?
REGINA HAMLIN, O.D.'s NPI is 1366404824 with credentials O.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.
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