Quick answers
- Does Joan F. Coker accept Medicare assignment?
- Yes. Medicare's clinician data says Joan F. Coker accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Joan F. Coker see?
- In 2024, CMS data shows 1,019 Original Medicare patients and 5,046 services for Joan F. Coker. This counts Original Medicare only and measures volume, not quality.
- What is Joan F. Coker's NPI number?
- 1992739676. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Joan F. Coker, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,019 |
|---|---|
| Services billed to Medicare | 5,046 |
| Different services or procedures | 43 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Test for allergy using allergenic extract (95004)1,260 services
- Test for allergy using allergenic extract injected into skin (95024)1,016 services
- Removal of impacted ear wax (69210)638 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)615 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)602 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes34%
- Chronic kidney disease28%
- Anxiety23%
Hospitals where Joan F. Coker works
Medicare's Facility Affiliation Data lists Joan F. Coker at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Bayhealth Medical Center, Kent CampusDover, DE · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 080004
- Christiana HospitalNewark, DE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 080001
- St Francis HospitalWilmington, DE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 080003
Practice locations
Addresses where Joan F. Coker is enrolled with Medicare (CMS data updated October 2, 2026).
- 1401 Foulk Rd, Suite 205Wilmington, DE 19803 (302) 998‑0300
- 4755 Ogletown Stanton RdNewark, DE 19718
- 501 W 14th StWilmington, DE 19801
- 501 W 14th St Fl, 6 Cchs Infectious DiseaseWilmington, DE 19801 (302) 320‑1300
- 501 W 14th St Wilmington HospitalWilmington, DE 19801
Group practices
Medicare enrollment lists Joan F. Coker as a member of these groups (CMS data updated October 2, 2026).
- Christiana Care Health Services Inc1,483 clinicians in the group
- Ent and Allergy of Delaware LLC42 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Wilmington
Clinicians with the same Medicare primary specialty in Wilmington, DE — not a recommendation.
Other clinicians in Christiana Care Health Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Ohio |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992739676 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians