Melissa Mercado, MD
NPI 1912135336 · Neurocritical Care Physician · Springfield, MA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melissa Mercado, MD is a Neurocritical Care Physician provider in Springfield, MA (NPI 1912135336).
Provider details
- NPI number
- 1912135336
- Entity type
- Individual
- Primary specialty
- Neurocritical Care PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 264421 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
542 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 220 | $117 |
| Critical Care, First 30-74 Minutes99291 | 219 | $208 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 80 | $171 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 23 | $78 |
Typical Medicare-allowed amounts for these services range $78–$208 (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
Registry dates
- Enumerated
- 2009-06-24
- Last updated
- 2020-04-17
- Certified
- 2020-04-17
Frequently asked questions
- What is Melissa Mercado's NPI number?
- Melissa Mercado's National Provider Identifier (NPI) is 1912135336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Mercado's specialty?
- Melissa Mercado is listed in the NPPES registry with a primary specialty of Neurocritical Care Physician (Allopathic & Osteopathic Physicians).
- Where is Melissa Mercado located?
- Melissa Mercado's practice location on file with NPPES is 3300 Main Street, Springfield, MA 01107-1112.
- What is Melissa Mercado's phone number?
- The practice phone number listed in the NPPES registry for Melissa Mercado is (413) 794-5600.
- Does Melissa Mercado accept Medicare?
- Melissa Mercado is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melissa Mercado's NPI active?
- Yes — Melissa Mercado's NPI (1912135336) is active in the NPPES registry as of the last update on 2020-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.