Physician Profile
Unclaimed ProfileAbout WELBER
Based in Livingston, NJ, Mark Welber, DO is listed in the NPI registry under emergency medicine. According to Medicare claims data, Mark cared for 803 Medicare patients across 820 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (973) 322-5000
- Email not available
Practice Locations
94 OLD SHORT HILLS RD
Livingston, NJ 07039
Procedures Most Often Billed to Medicare
820 services · 803 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Electrocardiogram (ecg) 1 to 3 leads with review by physician only | Treatment | 93042 |
113 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
215 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
189 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
138 |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
57 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
46 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
23 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
17 |
| Emergency department visit with straightforward medical decision making | Office visit | 99282 |
11 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
11 |
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 4
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 Livingston 5
Same specialty, same city.
Also performs Electrocardiogram (ecg) 1 to 3 leads with review by physician only 8
Providers in NJ who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Welber?
Dr. Welber is an emergency physician in Livingston, NJ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Emergency Medicine”.
NPI registry
What is Dr. Welber's address?
Dr. Welber is listed at 94 OLD SHORT HILLS RD, Livingston, NJ 07039. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Welber?
The number on file is (973) 322-5000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Welber's NPI number?
Dr. Welber's National Provider Identifier is 1285654244. 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. Welber been practicing?
Dr. Welber 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 procedures does Dr. Welber perform?
According to Medicare billing data, Dr. Welber provides treatments such as 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. Welber confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Welber. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.