NPPES file of Aug 9, 2026

Benjamin C. Chaon, MD

Ophthalmology Physician · Baltimore, MD

Benjamin C. Chaon, MD is an ophthalmology physician with a practice address in Baltimore, Maryland, and NPI 1902245830, issued on Jun 25, 2013. Check the license (Maryland D0085758, as entered in NPPES) on the Maryland Board of Physicians; 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
1902245830
Name
Benjamin C. Chaon
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
D0085758 MD
Self-reported in NPPES; status is on the state search
Practice location
600 North Wolfe Street, Baltimore, MD 21287
Phone
(410) 955-2966
Enumerated
Jun 25, 2013
Record last updated
Oct 15, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(410) 955-2924
Medicare enrollment
Enrolled (PECOS I20230730000124); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 2013
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 600 North Wolfe Street

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

  1. Alexandra AhernPhysician Assistant1225516149
  2. Tariq AlshehriStudent in an Organized Health Care Education/Training Program1316296643
  3. Neha BakhaiFamily Medicine Physician1285090126
  4. Peter Barr, MBCHBStudent in an Organized Health Care Education/Training Program1447779517
  5. Stephen Berger, MD, PHDNeurology Physician1356839427
  6. Nicole BracewellStudent in an Organized Health Care Education/Training Program1225729684

Verify Benjamin C. Chaon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0085758
    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 Maryland license search

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77% fewer Medicare Part D claims than the average ophthalmology physician in 2024

348 Medicare Part D claims for 110 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Benjamin Chaon348
  2. Specialty average1,518

Most prescribed

  1. Latanoprost82 claims
  2. Dorzolamide-Timolol52 claims
  3. Brimonidine Tartrate39 claims
  4. Prednisolone Acetate31 claims
  5. Erythromycin19 claims
  6. Timolol Maleate16 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.

Industry payments in 2024: $390.35

15 payments; by number, the most common kind was food and beverage; the largest payer was Genentech USA, 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. Benjamin Chaon$390.35
  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. Christiana Care Health Services IncWilmington, DE

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

Benjamin C. Chaon among 588 ophthalmology physician records in Maryland

Benjamin C. Chaon, MD is one of 588 ophthalmology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 80% of them.

  • NPI issued2013 · 80% of these records are older, 18% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2013 · median 2002 among the 369 with a school on file
  • Record last updated2018 · 65% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Maryland

There are 588 ophthalmology physician records in Maryland.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Esen Akpek, M.D.Baltimore, MD 212871851356943
  2. John Baer, M.D.Baltimore, MD 212871013984848
  3. Heather Bartlett Casparis, M.D.Baltimore, MD 212871629033147
  4. Neil Bressler, M.D.Baltimore, MD 212871790742245
  5. Peter Campochiaro, M.D.Baltimore, MD 212871598723850
  6. Marianne Cowley, MDBaltimore, MD 212871811964448
  7. Earl Craven, MDBaltimore, MD 212871457354821
  8. Morton Goldberg, M.D.Baltimore, MD 212871578516696

Common questions

What is Benjamin C. Chaon, MD's NPI number?

Benjamin C. Chaon, MD's National Provider Identifier (NPI) is 1902245830, issued on Jun 25, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Benjamin C. Chaon, MD located?

The NPPES record lists a practice address at 600 North Wolfe Street, Baltimore, MD, 21287. Phone: (410) 955-2966. Providers update this record themselves, so call before visiting.

How can I verify Benjamin C. Chaon, MD's license?

NPPES lists Maryland license number D0085758, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Benjamin C. Chaon, MD prescribe under Medicare Part D?

In 2024, Benjamin C. Chaon, MD had 348 Medicare Part D claims for 110 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.