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Edit this profileAt a glance
- 400 Christiana Medical Ctr, Newark, DE 19702
About John Holloway
Listed in the NPI registry as a physician assistant, John Holloway, PA-C practices in Newark, DE. According to Medicare claims data, John cared for 139 Medicare patients across 151 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more. NPI 1154152288 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (302) 722-8800
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
400 CHRISTIANA MEDICAL CTR
Newark, DE 19702
Procedures Most Often Billed to Medicare
151 services · 139 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
90 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
41 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
20 | As often as other peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other physician assistants in Newark 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2024 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does John Holloway specialize in?
John Holloway is a physician assistant in Newark, DE. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is John Holloway located?
John Holloway is listed at 400 Christiana Medical Ctr, Newark, DE 19702. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is John Holloway's phone number?
The number on file is (302) 722-8800. Contact the office directly to confirm availability and scheduling.
NPI registry
What is John Holloway's NPI number?
John Holloway's National Provider Identifier is 1154152288. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did John Holloway train?
John Holloway attended Other, graduating in 2024. This comes from the CMS National Downloadable File.
CMS public data
How long has John Holloway been practicing?
John Holloway has 2 years experience. Calculated from a graduation year of 2024, reported in the CMS National Downloadable File.
CMS public data
What does John Holloway do most often?
According to Medicare billing data, John Holloway the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has John Holloway confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by John Holloway. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.