John P. Gusdon, MD
Emergency Medicine Physician · Dover, DE
John P. Gusdon, MD is an emergency medicine physician with a practice address in Dover, Delaware, and NPI 1093874471, issued on Dec 8, 2006. Check the license (Delaware C1-0013100, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- John P. Gusdon
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- C1-0013100 DE
266581 MA
29580 NC
187669 NY
Self-reported in NPPES; status is on the state search - Practice location
- 640 S State St, Dover, DE 19901
- Phone
- (302) 744-6156
- Enumerated
- Dec 8, 2006
- Record last updated
- Jun 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (302) 735-3845
- Medicaid ID
- 8937940 NC
- Medicare enrollment
- Enrolled (PECOS I20190618000218); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 243 in Delaware → Look up another NPI →
Also registered at 640 S State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelly Abbrescia, DOEmergency Medicine Physician1992740625
- Sarah Abdallah, MDStudent in an Organized Health Care Education/Training Program1265374789
- Joseph Raphael Ablaza, M.D.Internal Medicine Physician1366892291
- Anastazia Acevedo, PA-CPhysician Assistant1831495282
- Aashish AcharyaInternal Medicine Physician1912523424
- Denita Adams, CRNACertified Registered Nurse Anesthetist1427233964
Verify John P. Gusdon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C1-0013100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average emergency medicine physician in 2024
206 Medicare Part D claims for 152 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass25 claims
- Ibuprofen17 claims
- Prednisone17 claims
- Ciprofloxacin Hcl14 claims
- Ondansetron Hcl13 claims
- Azithromycin11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 98 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Bayhealth Emergency Physicians LLCDover, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John P. Gusdon among 243 emergency medicine physician records in Delaware
John P. Gusdon, MD is one of 243 emergency medicine physician records with a practice address in Delaware. 83% 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 under 1% of them.
- NPI issued2006 · under 1% of these records are older, 65% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated1984 · median 2010 among the 123 with a school on file
- Record last updated2019 · 42% 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 Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
59 emergency medicine physician records list a practice address in Dover
They are 59 of the 2,137 NPPES records with a practice address in Dover, and 243 emergency medicine physician records in Delaware.
All 243 in Delaware → Every provider in Dover → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Kelly Abbrescia, DODover, DE 199011992740625
- Andrew Aswegan, MDDover, DE 199011548227812
- Robert Baeder, D.O.Dover, DE 199011588799662
- Philliph Bialecki, M.D.Dover, DE 199011902884463
- Susan Brennan, D.O.Dover, DE 199011952328411
- Robert Fumento, MDDover, DE 199011740254002
- Rhonda Gill, M.D.Dover, DE 199011881611341
- Craig Hochstein, M.D.Dover, DE 199011437174844
Common questions
What is John P. Gusdon, MD's NPI number?
John P. Gusdon, MD's National Provider Identifier (NPI) is 1093874471, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John P. Gusdon, MD located?
The NPPES record lists a practice address at 640 S State St, Dover, DE, 19901. Phone: (302) 744-6156. Providers update this record themselves, so call before visiting.
How can I verify John P. Gusdon, MD's license?
NPPES lists Delaware license number C1-0013100, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John P. Gusdon, MD prescribe under Medicare Part D?
In 2024, John P. Gusdon, MD had 206 Medicare Part D claims for 152 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is John P. Gusdon, MD's MIPS final score?
The 2023 MIPS final score is 98 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.