NPPES file of Aug 9, 2026

Rachel Dawn Ellyn, MD

Ophthalmology Physician · Ladson, SC

Rachel Dawn Ellyn, MD is an ophthalmology physician with a practice address in Ladson, South Carolina, and NPI 1669966040, issued on Jun 19, 2018. Check the license (South Carolina 52790, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669966040
Name
Rachel Dawn Ellyn
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
52790 SC
Self-reported in NPPES; status is on the state search
Practice location
9565 Highway 78 Bldg 200, Ladson, SC 29456
Phone
(843) 553-2477
Enumerated
Jun 19, 2018
Record last updated
Mar 6, 2025
Fax
(843) 553-2478
Medicare enrollment
Enrolled (PECOS I20230503000107); accepts Medicare assignment
Medical or professional school
Medical University Of South Carolina College Of Medicine, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 9565 Highway 78 Bldg 200

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Thomas Mather, M.D.Ophthalmology Physician1154381788
  2. Tanner Semones, ODOptometrist1285529719
  3. John Thompson, MDOphthalmology Physician1447299771

Verify Rachel Dawn Ellyn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 52790
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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80% more Medicare Part D claims than the average ophthalmology physician in 2024

2,736 Medicare Part D claims for 494 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.

  1. Rachel Ellyn2,736
  2. Specialty average1,518

Most prescribed

  1. Latanoprost481 claims
  2. Prednisolone Acetate431 claims
  3. Brimonidine Tartrate346 claims
  4. Dorzolamide-Timolol289 claims
  5. Ofloxacin202 claims
  6. Atropine Sulfate177 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 75.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score89.3
  2. Costout of 100 · 30%41.7
  3. Promoting interoperabilityout of 100 · 25%86.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,158.53

39 payments; by number, the most common kind was food and beverage; the largest payer was New World Medical,inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Rachel Ellyn$1,158.53
  2. Specialty average$4,535.02

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Cataract And Laser Center OF CharlestonLadson, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Rachel Dawn Ellyn among 329 ophthalmology physician records in South Carolina

Rachel Dawn Ellyn, MD is one of 329 ophthalmology physician records with a practice address in South Carolina. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 88% of them.

  • NPI issued2018 · 88% of these records are older, 10% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2018 · median 2002 among the 219 with a school on file
  • Record last updated2025 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 ophthalmology physician records list a practice address in Ladson

They are 10 of the 376 NPPES records with a practice address in Ladson, and 329 ophthalmology physician records in South Carolina.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Millin Budev, M.D.Ladson, SC 294561073562492
  2. Thomas Mather, M.D.Ladson, SC 294561154381788
  3. Kristiana Neff, M.D.Ladson, SC 294561174680409
  4. Phelan Piehota, D.O.Ladson, SC 294561548534381
  5. Ronald Teed, MDLadson, SC 294561952434110
  6. John Thompson, MDLadson, SC 294561447299771
  7. David Vroman, MDLadson, SC 294561750393138
  8. Katherine Wood, MDLadson, SC 294561609364041

Common questions

What is Rachel Dawn Ellyn, MD's NPI number?

Rachel Dawn Ellyn, MD's National Provider Identifier (NPI) is 1669966040, issued on Jun 19, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Rachel Dawn Ellyn, MD located?

The NPPES record lists a practice address at 9565 Highway 78 Bldg 200, Ladson, SC, 29456. Phone: (843) 553-2477. Providers update this record themselves, so call before visiting.

How can I verify Rachel Dawn Ellyn, MD's license?

NPPES lists South Carolina license number 52790, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Rachel Dawn Ellyn, MD prescribe under Medicare Part D?

In 2024, Rachel Dawn Ellyn, MD had 2,736 Medicare Part D claims for 494 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Rachel Dawn Ellyn, MD's MIPS final score?

The 2023 MIPS final score is 75.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.