Zachary Jason Fischer, DO
Emergency Medicine Physician · Bronx, NY
Zachary Jason Fischer, DO is an emergency medicine physician with a practice address in Bronx, New York, and NPI 1407484256, issued on Mar 28, 2020. Check the license (New York 328763, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Zachary Jason Fischer
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 328763 NY
Self-reported in NPPES; status is on the state search - Practice location
- 4422 3RD Ave, Bronx, NY 10457
- Phone
- (718) 960-6240
- Enumerated
- Mar 28, 2020
- Record last updated
- Aug 6, 2024
- Medicare enrollment
- Enrolled (PECOS I20240812000476); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 4422 3RD Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Abad, D.O.Emergency Medicine Physician1629490693
- Jamaad AbdiDentist1609458421
- Rita Abraham, DOStudent in an Organized Health Care Education/Training Program1326743378
- Hiluf Abule, MDStudent in an Organized Health Care Education/Training Program1083447452
- Yohannes Achamyeleh, MDStudent in an Organized Health Care Education/Training Program1912745548
- Juan Acosta, DOEmergency Medicine Physician1316940968
Verify Zachary Jason Fischer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 328763Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average emergency medicine physician in 2024
57 Medicare Part D claims for 41 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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
- Orange Emergency Services PCMiddletown, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary Jason Fischer among 5,025 emergency medicine physician records in New York
Zachary Jason Fischer, DO is one of 5,025 emergency medicine physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 83% of them.
- NPI issued2020 · 83% of these records are older, 12% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2020 · median 2013 among the 3,232 with a school on file
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
464 emergency medicine physician records list a practice address in Bronx
They are 464 of the 32,017 NPPES records with a practice address in Bronx, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in Bronx → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Juan Acosta, DOBronx, NY 104571316940968
- Jae Ahn, D.O.Bronx, NY 104571679541619
- Vijay Akkapeddi, M.D.Bronx, NY 104571982657706
- Ruben Altamirano, D.O.Bronx, NY 104571588614820
- Eric Appelbaum, D.O.Bronx, NY 104571528034618
- Jerry Balentine, D.O.Bronx, NY 104571376537050
- Paul Beyer, D.O.Bronx, NY 104571073563805
- Daniel Cerbone, D.O.Bronx, NY 104571073560520
Common questions
What is Zachary Jason Fischer, DO's NPI number?
Zachary Jason Fischer, DO's National Provider Identifier (NPI) is 1407484256, issued on Mar 28, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Jason Fischer, DO located?
The NPPES record lists a practice address at 4422 3RD Ave, Bronx, NY, 10457. Phone: (718) 960-6240. Providers update this record themselves, so call before visiting.
How can I verify Zachary Jason Fischer, DO's license?
NPPES lists New York license number 328763, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Zachary Jason Fischer, DO prescribe under Medicare Part D?
In 2024, Zachary Jason Fischer, DO had 57 Medicare Part D claims for 41 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.