Mark Welber, DO
NPI 1285654244 · Emergency Medicine Physician · Livingston, NJ
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Welber, DO is a Emergency Medicine Physician provider in Livingston, NJ (NPI 1285654244).
Provider details
- NPI number
- 1285654244
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 25MB05675700 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
820 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 215 | $131 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 189 | $191 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 138 | $190 |
| Electrocardiogram (ecg) 1 to 3 Leads With Review By Physician Only93042 | 113 | $7 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 57 | $77 |
| Critical Care, First 30-74 Minutes99291 | 46 | $233 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Monohydrate | 74 | 74 |
| Methylprednisolone | 56 | 54 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 46 | 46 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 46 | 46 |
| Azithromycin | 22 | 22 |
| Cyclobenzaprine Hcl | 15 | 15 |
| Naproxen | 15 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$57 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-20
- Last updated
- 2022-07-13
- Certified
- 2022-07-13
Frequently asked questions
- What is Mark Welber's NPI number?
- Mark Welber's National Provider Identifier (NPI) is 1285654244, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Welber's specialty?
- Mark Welber is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Welber located?
- Mark Welber's practice location on file with NPPES is 94 Old Short Hills Rd, Livingston, NJ 07039-5672.
- What is Mark Welber's phone number?
- The practice phone number listed in the NPPES registry for Mark Welber is (973) 322-5000.
- Does Mark Welber accept Medicare?
- Mark Welber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Welber's NPI active?
- Yes — Mark Welber's NPI (1285654244) is active in the NPPES registry as of the last update on 2022-07-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.