NPPES file of Aug 9, 2026

Chad Charles Zatezalo, M.D.

Ophthalmology Physician · Chevy Chase, MD

Chad Charles Zatezalo, M.D. is an ophthalmology physician with a practice address in Chevy Chase, Maryland, and NPI 1861603524, issued on May 24, 2007. Check the license (Maryland D74823, 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
1861603524
Name
Chad Charles Zatezalo
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
D74823 MD
MT189272 PA
Self-reported in NPPES; status is on the state search
Practice location
8401 Connecticut Ave Ste 640, Chevy Chase, MD 20815
Phone
(301) 304-6600
Enumerated
May 24, 2007
Record last updated
Feb 15, 2024
Fax
(301) 304-6601
Medicare enrollment
Enrolled (PECOS I20121031000056); accepts Medicare assignment
Medical or professional school
Icahn School Of Medicine At Mount Sinai, 2006
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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Verify Chad Charles Zatezalo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D74823
    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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87% fewer Medicare Part D claims than the average ophthalmology physician in 2024

204 Medicare Part D claims for 66 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 18 claims were for opioids.

  1. Chad Zatezalo204
  2. Specialty average1,518

Most prescribed

  1. Erythromycin64 claims
  2. Ondansetron Odt41 claims
  3. Neomycin-Polymyxin-Dexameth29 claims
  4. Oxycodone-Acetaminophen14 claims
  5. Prednisone14 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: $300.69

4 payments; by number, the most common kind was food and beverage; the largest payer was Revance Therapeutics, 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. Chad Zatezalo$300.69
  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.

Chad Charles Zatezalo among 588 ophthalmology physician records in Maryland

Chad Charles Zatezalo, M.D. 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 2007, is newer than 56% of them.

  • NPI issued2007 · 56% of these records are older, 34% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2006 · median 2002 among the 369 with a school on file
  • Record last updated2024 · 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).

25 ophthalmology physician records list a practice address in Chevy Chase

They are 25 of the 1,118 NPPES records with a practice address in Chevy Chase, and 588 ophthalmology physician records in Maryland.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Thomas Clinch, MDChevy Chase, MD 208151437186350
  2. Mary Fischer, M.D.Chevy Chase, MD 208151306844113
  3. Douglas Gaasterland, MDChevy Chase, MD 208151992723324
  4. William Gilbert, M.D.Chevy Chase, MD 208151639143993
  5. John Hamill, MDChevy Chase, MD 208151447361639
  6. Won Kim, MDChevy Chase, MD 208151366536153
  7. Anand Mantravadi, M.D.Chevy Chase, MD 208151063591402
  8. Neil Martin, MDChevy Chase, MD 208151982607792

Common questions

What is Chad Charles Zatezalo, M.D.'s NPI number?

Chad Charles Zatezalo, M.D.'s National Provider Identifier (NPI) is 1861603524, issued on May 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Chad Charles Zatezalo, M.D. located?

The NPPES record lists a practice address at 8401 Connecticut Ave Ste 640, Chevy Chase, MD, 20815. Phone: (301) 304-6600. Providers update this record themselves, so call before visiting.

How can I verify Chad Charles Zatezalo, M.D.'s license?

NPPES lists Maryland license number D74823, 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 Chad Charles Zatezalo, M.D. prescribe under Medicare Part D?

In 2024, Chad Charles Zatezalo, M.D. had 204 Medicare Part D claims for 66 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.