Stephen Bigelsen, M.D.
NPI 1780611574 · Allergy & Immunology (Internal Medicine) Physician · Dover, NJ
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Bigelsen, M.D. is a Allergy & Immunology (Internal Medicine) Physician provider in Dover, NJ (NPI 1780611574).
Provider details
- NPI number
- 1780611574
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MA54672 (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
20 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
14,135 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 6,296 | $4 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 4,331 | $16 |
| Professional Service for Multiple Injections of Allergen95117 | 1,497 | $14 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 1,208 | $9 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 329 | $76 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 233 | $136 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 68 | 42 |
| Ipratropium Bromide | 49 | 16 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 47 | 16 |
| Montelukast Sodium | 45 | 16 |
| Fluticasone Propionate | 41 | 18 |
| Fluticasone Propion/Salmeterolbrand: Fluticasone-Salmeterol | 38 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$155 across 9 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
- 2006-06-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stephen Bigelsen's NPI number?
- Stephen Bigelsen's National Provider Identifier (NPI) is 1780611574, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Bigelsen's specialty?
- Stephen Bigelsen is listed in the NPPES registry with a primary specialty of Allergy & Immunology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Bigelsen located?
- Stephen Bigelsen's practice location on file with NPPES is 600 Mount Pleasant Ave, Dover, NJ 07801-1629.
- What is Stephen Bigelsen's phone number?
- The practice phone number listed in the NPPES registry for Stephen Bigelsen is (973) 989-0500.
- Does Stephen Bigelsen accept Medicare?
- Stephen Bigelsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Bigelsen's NPI active?
- Yes — Stephen Bigelsen's NPI (1780611574) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.