NPPES file of Aug 9, 2026

Steven J. Marks, M.D.

Ophthalmology Physician · Danville, PA

Steven J. Marks, M.D. is an ophthalmology physician with a practice address in Danville, Pennsylvania, and NPI 1508827056, issued on Mar 31, 2006. Check the license (Pennsylvania MD045244L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1508827056
Name
Steven J. Marks
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
MD045244L PA
Self-reported in NPPES; status is on the state search
Practice location
16 Woodbine LN, Danville, PA 17821
Phone
(570) 271-6531
Enumerated
Mar 31, 2006
Record last updated
Aug 11, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(570) 271-7146
Medicaid ID
0012739600001 PA
Medicare enrollment
Enrolled (PECOS I20071212000620); accepts Medicare assignment
Medical or professional school
Hahnemann University College Of Medicine, 1988
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 16 Woodbine LN

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

  1. Chulhyun Ahn, M.D.Physical Medicine & Rehabilitation Physician1659691558
  2. Aaron BeckerAthletic Trainer1740926013
  3. Rebecca Beichner, M.D.Family Medicine Physician1134507478
  4. Justin Blessing, PTOrthopedic Physical Therapist1366395642
  5. Chelsea Britto, PA-CPhysician Assistant1073785184
  6. Kelly BrustmanStudent in an Organized Health Care Education/Training Program1841132834

Verify Steven J. Marks in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD045244L
    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 Pennsylvania license search

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88% fewer Medicare Part D claims than the average ophthalmology physician in 2024

187 Medicare Part D claims for 90 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.

  1. Steven Marks187
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate39 claims
  2. Latanoprost30 claims
  3. Timolol Maleate24 claims
  4. Dorzolamide-Timolol16 claims
  5. Brimonidine Tartrate14 claims
  6. Ketorolac Tromethamine14 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.

Bills Medicare through one group practice

  1. Geisinger ClinicDanville, PA

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

Steven J. Marks among 1,088 ophthalmology physician records in Pennsylvania

Steven J. Marks, M.D. is one of 1,088 ophthalmology physician records with a practice address in Pennsylvania. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 22% of them.

  • NPI issued2006 · 22% of these records are older, 40% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1988 · median 2000 among the 734 with a school on file
  • Record last updated2020 · 64% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Pennsylvania

There are 1,088 ophthalmology physician records in Pennsylvania.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Kendall Dobbins, M.D.Danville, PA 178211356317499
  2. William Ensor, D.O.Danville, PA 178211942658984
  3. Nathalie Guibord, M.D.Danville, PA 178211184693954
  4. Benjamin Hale, M.D.Danville, PA 178211588823561
  5. Shariq Hashmi, MDDanville, PA 178211508444381
  6. Herbert Ingraham, M.D.Danville, PA 178211427017128
  7. Wells Reinheimer, D.O.Danville, PA 178211346441789
  8. Tamara Vrabec, M.D.Danville, PA 178211437156122

Common questions

What is Steven J. Marks, M.D.'s NPI number?

Steven J. Marks, M.D.'s National Provider Identifier (NPI) is 1508827056, issued on Mar 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Steven J. Marks, M.D. located?

The NPPES record lists a practice address at 16 Woodbine LN, Danville, PA, 17821. Phone: (570) 271-6531. Providers update this record themselves, so call before visiting.

How can I verify Steven J. Marks, M.D.'s license?

NPPES lists Pennsylvania license number MD045244L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Steven J. Marks, M.D. prescribe under Medicare Part D?

In 2024, Steven J. Marks, M.D. had 187 Medicare Part D claims for 90 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

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.