NPPES file of Aug 9, 2026

Tyler De Jong, M.D.

Internal Medicine Physician · Long Beach, CA

Tyler De Jong, M.D. is an internal medicine physician with a practice address in Long Beach, California, and NPI 1033537493, issued on Apr 2, 2014. Check the license (California A138668, 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
1033537493
Name
Tyler De Jong
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A138668 CA
Self-reported in NPPES; status is on the state search
Practice location
300 Redondo Ave, Long Beach, CA 90814
Phone
(562) 433-7496
Enumerated
Apr 2, 2014
Record last updated
Aug 29, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(562) 987-9206
Medicare enrollment
Enrolled (PECOS I20160513001682); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
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8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →

Also registered at 300 Redondo Ave

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

  1. Judith Belman, NPNurse Practitioner1093894750
  2. Deborah Chow, NPNurse Practitioner1710991757
  3. Clayton Dejong, MDInternal Medicine Physician1467466409
  4. Stephanie Green, MDFamily Medicine Physician1427062462
  5. Perry Koseff, DOFamily Medicine Physician1790709186
  6. Lyndsay Onaga, PA-CPhysician Assistant1912770579

Verify Tyler De Jong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A138668    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.

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52% more Medicare Part D claims than the average internal medicine physician in 2024

4,839 Medicare Part D claims for 563 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 58 claims were for opioids.

  1. Tyler De Jong4,839
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium426 claims
  2. Amlodipine Besylate322 claims
  3. Lisinopril178 claims
  4. Levothyroxine Sodium167 claims
  5. Tamsulosin Hcl138 claims
  6. Metformin Hcl116 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.

Industry payments in 2024: $192.11

8 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tyler De Jong$192.11
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Prohealth Partners, A Medical GroupLong Beach, CA

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

Tyler De Jong among 17,696 internal medicine physician records in California

Tyler De Jong, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.

  • NPI issued2014 · 74% of these records are older, 24% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2014 · median 2004 among the 11,065 with a school on file
  • Record last updated2017 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

221 internal medicine physician records list a practice address in Long Beach

They are 221 of the 13,650 NPPES records with a practice address in Long Beach, and 17,696 internal medicine physician records in California.

All 17,696 in California → Every provider in Long Beach → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Clayton Dejong, MDLong Beach, CA 908141467466409
  2. Karen Dubowy-Karpouzas, MDLong Beach, CA 908141710035597
  3. Cornelia Barton, MDLong Beach, CA 908151205999265
  4. Diana Bryant, MDLong Beach, CA 908151255425146
  5. Gagik Gabrielyan, DOLong Beach, CA 908131366145021
  6. Thomas Hendon, M.D.Long Beach, CA 908151093745853
  7. Lance Hirano, MDLong Beach, CA 908151386751576
  8. Patrick Huong, DOLong Beach, CA 908131215787650

Common questions

What is Tyler De Jong, M.D.'s NPI number?

Tyler De Jong, M.D.'s National Provider Identifier (NPI) is 1033537493, issued on Apr 2, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Tyler De Jong, M.D. located?

The NPPES record lists a practice address at 300 Redondo Ave, Long Beach, CA, 90814. Phone: (562) 433-7496. Providers update this record themselves, so call before visiting.

How can I verify Tyler De Jong, M.D.'s license?

NPPES lists California license number A138668, 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 Tyler De Jong, M.D. prescribe under Medicare Part D?

In 2024, Tyler De Jong, M.D. had 4,839 Medicare Part D claims for 563 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

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.