NPPES file of Aug 9, 2026

Melissa Gaspar, MD

Emergency Medicine Physician · Vacaville, CA

Melissa Gaspar, MD is an emergency medicine physician with a practice address in Vacaville, California, and NPI 1588291496, issued on Mar 23, 2020. Check the license (California 191263, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588291496
Name
Melissa Gaspar
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
191263 CA
Self-reported in NPPES; status is on the state search
Practice location
1 Quality Dr, Vacaville, CA 95688
Phone
(707) 624-4000
Enumerated
Mar 23, 2020
Record last updated
Jul 29, 2024
Medicare enrollment
Enrolled (PECOS I20240325002501); accepts Medicare assignment
Medical or professional school
University Of Missouri, Columbia School Of Medicine, 2020
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1 Quality Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Hydee Abaya Ghazaleh, M.D.Internal Medicine Physician1922688464
  2. Jonathan Abaya Ghazaleh, MDInternal Medicine Physician1093395535
  3. Huma Ahmad, D.O.Hospitalist Physician1154587616
  4. Azim Ahmady, MDFamily Medicine Physician1417035916
  5. Lamia Alazzawi, PHARM.D.Pharmacist1407380645
  6. Delaine Alejandro, DOFamily Medicine Physician1487816294

Verify Melissa Gaspar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 191263
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

59% more Medicare Part D claims than the average emergency medicine physician in 2024

360 Medicare Part D claims for 216 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 39 claims were for opioids.

  1. Melissa Gaspar360
  2. Specialty average226

Most prescribed

  1. Cefpodoxime Proxetil31 claims
  2. Ondansetron Odt30 claims
  3. Amoxicillin-Clavulanate Potass27 claims
  4. Hydrocodone-Acetaminophen21 claims
  5. Sucralfate20 claims
  6. Prednisone19 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Permanente Medical Group IncVacaville, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Melissa Gaspar among 7,751 emergency medicine physician records in California

Melissa Gaspar, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 88% of them.

  • NPI issued2020 · 88% of these records are older, 8% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2020 · median 2011 among the 4,560 with a school on file
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 emergency medicine physician records list a practice address in Vacaville

They are 20 of the 1,903 NPPES records with a practice address in Vacaville, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Maricel Romelia Dela CruzVacaville, CA 956881396004032
  2. Nathan Finch, MDVacaville, CA 956881578060547
  3. Anisa Heravian, M.D.Vacaville, CA 956881861768947
  4. Aileen Jaber, MDVacaville, CA 956881497807614
  5. Amanda Jackson, MDVacaville, CA 956881386141844
  6. Thomas Keown, MDVacaville, CA 956881992368781
  7. Joshua Kessack, D.O.Vacaville, CA 956881629503180
  8. Samuel Kim, M.D.Vacaville, CA 956881528440658

Common questions

What is Melissa Gaspar, MD's NPI number?

Melissa Gaspar, MD's National Provider Identifier (NPI) is 1588291496, issued on Mar 23, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Gaspar, MD located?

The NPPES record lists a practice address at 1 Quality Dr, Vacaville, CA, 95688. Phone: (707) 624-4000. Providers update this record themselves, so call before visiting.

How can I verify Melissa Gaspar, MD's license?

NPPES lists California license number 191263, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Melissa Gaspar, MD prescribe under Medicare Part D?

In 2024, Melissa Gaspar, MD had 360 Medicare Part D claims for 216 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.