Mark Merlin, DO
NPI 1093725822 · Emergency Medicine Physician · East Hanover, NJ
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Merlin, DO is a Emergency Medicine Physician provider in East Hanover, NJ (NPI 1093725822).
Provider details
- NPI number
- 1093725822
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 282169 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
7 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
64 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 51 | $100 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 13 | $69 |
Typical Medicare-allowed amounts for these services range $69–$100 (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.
Practice location
Mailing address
Additional practice locations (6)
- 9961 Baldwin PlEl Monte, CA 91731-2203Phone: (813) 416-6438Fax: (877) 282-9624
- 55 Lane Rd Ste 300Fairfield, NJ 07004-1015Phone: (866) 349-4230Fax: (877) 282-9624
- 70 S Orange Ave Ste 235Livingston, NJ 07039-4915Phone: (973) 607-4911Fax: (973) 607-4911
- 1 Robert Wood Johnson PlDepartment of Emergency MedicineNew Brunswick, NJ 08901-1928Phone: (732) 828-3000
- 35 W 35th St Fl 6New York, NY 10001-2205Phone: (866) 349-4230Fax: (877) 282-9624
- 154 Hansen Access RdKing of Prussia, PA 19406-2404Phone: (866) 349-4230Fax: (877) 282-9624
Registry dates
- Enumerated
- 2006-08-08
- Last updated
- 2026-01-16
- Certified
- 2026-01-16
Frequently asked questions
- What is Mark Merlin's NPI number?
- Mark Merlin's National Provider Identifier (NPI) is 1093725822, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Merlin's specialty?
- Mark Merlin is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Merlin located?
- Mark Merlin's practice location on file with NPPES is 399 Route 10, East Hanover, NJ 07936.
- What is Mark Merlin's phone number?
- The practice phone number listed in the NPPES registry for Mark Merlin is (908) 577-9808.
- Does Mark Merlin accept Medicare?
- Mark Merlin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Merlin's NPI active?
- Yes — Mark Merlin's NPI (1093725822) is active in the NPPES registry as of the last update on 2026-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.