Melissa Gaspar, MD
NPI 1588291496 · Emergency Medicine Physician · Vacaville, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melissa Gaspar, MD is a Emergency Medicine Physician provider in Vacaville, CA (NPI 1588291496).
Provider details
- NPI number
- 1588291496
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 191263 (CA)
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
6 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
50 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 32 | $178 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 18 | $124 |
Typical Medicare-allowed amounts for these services range $124–$178 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefpodoxime Proxetil | 31 | 31 |
| Ondansetronbrand: Ondansetron Odt | 30 | 30 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 27 | 27 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 21 | 21 |
| Sucralfate | 20 | 20 |
| Prednisone | 19 | 18 |
| Sulfamethoxazole/Trimethoprim |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-23
- Last updated
- 2024-07-29
- Certified
- 2024-07-29
Frequently asked questions
- What is Melissa Gaspar's NPI number?
- Melissa Gaspar's National Provider Identifier (NPI) is 1588291496, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Gaspar's specialty?
- Melissa Gaspar is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Melissa Gaspar located?
- Melissa Gaspar's practice location on file with NPPES is 1 Quality Dr, Vacaville, CA 95688-9494.
- What is Melissa Gaspar's phone number?
- The practice phone number listed in the NPPES registry for Melissa Gaspar is (707) 624-4000.
- Does Melissa Gaspar accept Medicare?
- Melissa Gaspar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melissa Gaspar's NPI active?
- Yes — Melissa Gaspar's NPI (1588291496) is active in the NPPES registry as of the last update on 2024-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.