Mark J. Ross, M.D.
Ophthalmology Physician · Florence, SC
Mark J. Ross, M.D. is an ophthalmology physician with a practice address in Florence, South Carolina, and NPI 1508869090, issued on May 27, 2005. Check the license (South Carolina 11764, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mark J. Ross
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 11764 SC
Self-reported in NPPES; status is on the state search - Practice location
- 367 W Evans St, Florence, SC 29501
- Phone
- (843) 669-4156
- Enumerated
- May 27, 2005
- Record last updated
- Feb 14, 2024
- Fax
- (843) 664-2121
- Medicaid IDs
- 890602C NC
AT6689 SC - Medicare enrollment
- Enrolled (PECOS I20110510000301); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1977
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 329 in South Carolina → Look up another NPI →
Also registered at 367 W Evans St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shannon Harvey, ODOptometrist1689166019
- Deanna Lyttle, M.DOphthalmology Physician1386890242
- Dawn Marentette, LDOOptician1225519564
- Hunter Stokes, M.D.Ophthalmology Physician1588667067
- Mark Stokes, M.D.Ophthalmology Physician1013910595
- Carlene Taylor-Harlow, L.O.Optician1215222369
Verify Mark J. Ross in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 11764Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.3 times the Medicare Part D claims of the average ophthalmology physician in 2024
6,527 Medicare Part D claims for 1,280 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims. 11 claims were for opioids.
Most prescribed
- Latanoprost1,990 claims
- Prednisolone Acetate679 claims
- Timolol Maleate564 claims
- Dorzolamide-Timolol558 claims
- Ketorolac Tromethamine541 claims
- Moxifloxacin495 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $21.97
1 payment: food and beverage; the largest payer was Thea Pharma 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.
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
- Stokes Regional Eye CentersSumter, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark J. Ross among 329 ophthalmology physician records in South Carolina
Mark J. Ross, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1977 · median 2002 among the 219 with a school on file
- Record last updated2024 · 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).
Ophthalmology Physician providers in South Carolina
There are 329 ophthalmology physician records in South Carolina.
All 329 in South Carolina → Every provider in Florence → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Aric CleggFlorence, SC 295011588125694
- Howard Greene, M.D.Florence, SC 295011891726766
- Deanna Lyttle, M.DFlorence, SC 295011386890242
- Samuel Seltzer, MDFlorence, SC 295011053379107
- Hunter Stokes, M.D.Florence, SC 295011588667067
- Mark Stokes, M.D.Florence, SC 295011013910595
- Nagavivek Vasuki, MDFlorence, SC 295011508158544
- Isam Zakhour, M.D.Florence, SC 295011912900408
Common questions
What is Mark J. Ross, M.D.'s NPI number?
Mark J. Ross, M.D.'s National Provider Identifier (NPI) is 1508869090, issued on May 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark J. Ross, M.D. located?
The NPPES record lists a practice address at 367 W Evans St, Florence, SC, 29501. Phone: (843) 669-4156. Providers update this record themselves, so call before visiting.
How can I verify Mark J. Ross, M.D.'s license?
NPPES lists South Carolina license number 11764, 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 Mark J. Ross, M.D. prescribe under Medicare Part D?
In 2024, Mark J. Ross, M.D. had 6,527 Medicare Part D claims for 1,280 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Mark J. Ross, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.