Registry data as of Aug 27, 2026

Gecelle De Guia, DO

Adult Medicine Physician · Daly City, CA

Gecelle De Guia, DO is an adult medicine physician with a practice address in Daly City, California, and NPI 1437786878, issued on Mar 25, 2020. 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
1437786878
Name
Gecelle De Guia
Credential
DO
Primary taxonomy
Adult Medicine Physician 207QA0505X
Practice location
395 Hickey Blvd, Daly City, CA 94015
Phone
(559) 499-6450
Enumerated
Mar 25, 2020
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 395 Hickey Blvd

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

  1. Alea Angeja, MDObstetrics & Gynecology Physician1528146131
  2. Juanito Austria, MDInternal Medicine Physician1558449041
  3. Alice Azus, ODOptometrist1598814527
  4. William Babbitt, M.D.Pediatric Adolescent Medicine Physician1578900635
  5. Eleanor Becker, MDOphthalmology Physician1720166317
  6. Dawn Belardinelli, MDPediatrics Physician1235201054

Verify Gecelle De Guia 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 →

10% fewer Medicare Part D claims than the average adult medicine physician in 2024

2,603 Medicare Part D claims for 431 beneficiaries, against an average of 2,896 among the 1,419 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 67 claims were for opioids.

  1. Gecelle De Guia2,603
  2. Specialty average2,896

Most prescribed

  1. Atorvastatin Calcium272 claims
  2. Losartan Potassium188 claims
  3. Amlodipine Besylate140 claims
  4. Lisinopril106 claims
  5. Levothyroxine Sodium94 claims
  6. Hydrochlorothiazide67 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 IncDaly City, 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.

Adult Medicine Physician providers in California

There are 399 adult medicine physician records in California.

Other adult medicine physician records in California

  1. Mina Abazari, M.D.Laguna Beach, CA1417012444
  2. Derrick Adams, D.O.Lincoln, CA1659352219
  3. Abhishek Agarwal, M.D.Roseville, CA1124257407
  4. Marie Agleham, MDUnion City, CA1649298209
  5. Ahmad Ahmadzia, M.D.Fair Oaks, CA1023431152
  6. Dimple Ajwani, D.O.Roseville, CA1053687152
  7. Dina Al-RabadiSanta Monica, CA1386271682
  8. James Aldrich, MDLa Jolla, CA1730290016
  9. John Alevizos, DOIrvine, CA1689671380
  10. Maryin Altamirano, MDBeaumont, CA1720575988

Common questions

What is Gecelle De Guia, DO's NPI number?

Gecelle De Guia, DO's National Provider Identifier (NPI) is 1437786878, issued on Mar 25, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Gecelle De Guia, DO located?

The NPPES record lists a practice address at 395 Hickey Blvd, Daly City, CA, 94015. Phone: (559) 499-6450. Providers update this record themselves, so call before visiting.

How can I verify Gecelle De Guia, 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 Gecelle De Guia, DO prescribe under Medicare Part D?

In 2024, Gecelle De Guia, DO had 2,603 Medicare Part D claims for 431 beneficiaries; the average among adult medicine physician prescribers was 2,896. 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.