Registry data as of Aug 27, 2026

Delaine Alejandro, DO

Family Medicine Physician · Vacaville, CA

Delaine Alejandro, DO is a family medicine physician with a practice address in Vacaville, California, and NPI 1487816294, issued on Jul 2, 2008. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1487816294
Name
Delaine Alejandro
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
Practice location
1 Quality Dr, Vacaville, CA 95688
Phone
(707) 624-4000
Enumerated
Jul 2, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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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.Student in an Organized Health Care Education/Training Program1922688464
  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. Mina AnPharmacist1427294388

Verify Delaine Alejandro in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

61% more Medicare Part D claims than the average family medicine physician in 2024

5,670 Medicare Part D claims for 527 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 313 claims were for opioids.

  1. Delaine Alejandro5,670
  2. Specialty average3,519

Most prescribed

  1. Atorvastatin Calcium296 claims
  2. Hydrocodone-Acetaminophen225 claims
  3. Amlodipine Besylate217 claims
  4. Albuterol Sulfate Hfa196 claims
  5. Fluticasone Propionate193 claims
  6. Levothyroxine Sodium168 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.

One hospital or facility affiliation

  1. Permanente Medical Group IncVacaville, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

57 family medicine physician records list a Vacaville practice address

They are 57 of the 1,903 NPPES records with a Vacaville practice address, and 16,272 family medicine physician records in California.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Delaine Alejandro, DO's NPI number?

Delaine Alejandro, DO's National Provider Identifier (NPI) is 1487816294, issued on Jul 2, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Delaine Alejandro, DO 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 Delaine Alejandro, DO's license?

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 Delaine Alejandro, DO prescribe under Medicare Part D?

In 2024, Delaine Alejandro, DO had 5,670 Medicare Part D claims for 527 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.