Steven Guillen, MD
NPI 1710911029 · Emergency Medicine Physician · Flemington, NJ
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Guillen, MD is a Emergency Medicine Physician provider in Flemington, NJ (NPI 1710911029).
Provider details
- NPI number
- 1710911029
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA08050600 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,010 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 1,063 | $8 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 530 | $180 |
| Critical Care, First 30-74 Minutes99291 | 307 | $219 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 83 | $124 |
| Electrocardiogram (ecg) 1 to 3 Leads With Review By Physician Only93042 | 27 | $7 |
Typical Medicare-allowed amounts for these services range $7–$219 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 28 | — |
| Cephalexin | 27 | 26 |
| Meclizine Hcl | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$13 across 1 record (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
Additional practice locations (2)
- 766 Shrewsbury Ave Ste 300Tinton Falls, NJ 07724-3001Phone: (732) 228-8346Fax: (224) 235-4652
- 1975 Hylan Blvd Ste CStaten Island, NY 10306-3515Phone: (718) 690-9591Fax: (224) 235-4652
Registry dates
- Enumerated
- 2006-07-10
- Last updated
- 2026-04-07
- Certified
- 2026-04-07
Frequently asked questions
- What is Steven Guillen's NPI number?
- Steven Guillen's National Provider Identifier (NPI) is 1710911029, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Guillen's specialty?
- Steven Guillen is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Guillen located?
- Steven Guillen's practice location on file with NPPES is 2100 Wescott Dr, Flemington, NJ 08822-4603.
- What is Steven Guillen's phone number?
- The practice phone number listed in the NPPES registry for Steven Guillen is (856) 616-8100.
- Does Steven Guillen accept Medicare?
- Steven Guillen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Guillen's NPI active?
- Yes — Steven Guillen's NPI (1710911029) is active in the NPPES registry as of the last update on 2026-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.