Physician Profile
John F. Maciejczyk, M.D.
Unclaimed ProfileAbout Dr. Maciejczyk
John F. Maciejczyk, M.D. is a healthcare provider in Danville, PA specializing in emergency medicine. According to Medicare claims data, John cared for 409 Medicare patients across 421 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (570) 271-6812
- Email not available
Practice Locations
100 N ACADEMY AVE
Danville, PA 17822
Procedures Most Often Billed to Medicare
421 services · 409 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
152 |
| Electrocardiogram (ecg) 1 to 3 leads with review by physician only | Treatment | 93042 |
26 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
191 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
27 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
25 |
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 emergency physicians at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 13 related providers in 2 groups
Other emergency physicians in Danville 5
Same specialty, same city.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in PA who bill this service to Medicare most often.
Common questions
What is Dr. Maciejczyk's specialty?
Dr. Maciejczyk is an emergency physician in Danville, PA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Emergency Medicine”.
NPI registry
Where can I find Dr. Maciejczyk?
Dr. Maciejczyk is listed at 100 N ACADEMY AVE, Danville, PA 17822. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Maciejczyk?
The number on file is (570) 271-6812. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Maciejczyk's NPI number?
Dr. Maciejczyk's National Provider Identifier is 1639260102. 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
How long has Dr. Maciejczyk been practicing?
Dr. Maciejczyk has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Dr. Maciejczyk known for?
According to Medicare billing data, Dr. Maciejczyk provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and electrocardiogram 1 to 3 leads with review by physician only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Maciejczyk confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Maciejczyk. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.