NPPES file of Aug 9, 2026

Gelbert G. De Guzman, OTA

Occupational Therapy Assistant · Encino, CA

Gelbert G. De Guzman, OTA is an occupational therapy assistant with a practice address in Encino, California, and NPI 1003452863, issued on Nov 26, 2019. Check the license (California 3353, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1003452863
Name
Gelbert G. De Guzman
Credential
OTA
Primary taxonomy
Occupational Therapy Assistant 224Z00000X
License number
3353 CA
Self-reported in NPPES; status is on the state search
Practice location
16260 Ventura Blvd, Encino, CA 91436
Phone
(818) 986-1977
Enumerated
Nov 26, 2019
Record last updated
Apr 14, 2020 (not updated in 6 years: call before relying on the address or phone)
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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8 nearest occupational therapy assistant records → All 1,869 in California → Look up another NPI →

Also registered at 16260 Ventura Blvd

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

  1. Anastasia Andrew, FNPFamily Medicine Physician1497270987
  2. Robin Black, M.A., CCC, SLPSpeech-Language Pathologist1306203575
  3. Peter Boon, OTR/LOccupational Therapist1295192359
  4. Talin Bourian, FNP-CFamily Nurse Practitioner1679280788
  5. Felecia BrownOccupational Therapist1477917375
  6. Monte Burnam, P.A.-CPhysician Assistant1639129729

Verify Gelbert G. De Guzman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 3353    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
Find 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.

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Gelbert G. De Guzman among 1,869 occupational therapy assistant records in California

Gelbert G. De Guzman, OTA is one of 1,869 occupational therapy assistant records with a practice address in California. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2019, is newer than 44% of them.

  • NPI issued2019 · 44% of these records are older, 49% newer
  • In a Medicare fileNo · under 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2020 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 224Z00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Occupational Therapy Assistant providers in California

There are 1,869 occupational therapy assistant records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,869 in California → Every provider in Encino → Occupational Therapy Assistant nationwide →

The 8 occupational therapy assistant records with the nearest ZIP codes

  1. Sasha Ember BanagaEncino, CA 914361811766538
  2. Stephanie Dolan, COTA/LEncino, CA 914361285950824
  3. Catherine Halmi, COTAEncino, CA 914361851866743
  4. Christin KhanbabaianEncino, CA 914361699131557
  5. Naiereh KoochekiEncino, CA 914361053764555
  6. Jessica LopezEncino, CA 914361053946731
  7. Monetta ManningEncino, CA 914361841651940
  8. Michael Jet MartinezEncino, CA 914361982060455

Common questions

What is Gelbert G. De Guzman, OTA's NPI number?

Gelbert G. De Guzman, OTA's National Provider Identifier (NPI) is 1003452863, issued on Nov 26, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Gelbert G. De Guzman, OTA located?

The NPPES record lists a practice address at 16260 Ventura Blvd, Encino, CA, 91436. Phone: (818) 986-1977. Providers update this record themselves, so call before visiting.

How can I verify Gelbert G. De Guzman, OTA's license?

NPPES lists California license number 3353, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.