Gilbert P. Eng, M.D.
Internal Medicine Physician · Long Beach, CA
Gilbert P. Eng, M.D. is an internal medicine physician with a practice address in Long Beach, California, and NPI 1255411609, issued on Oct 17, 2006. Check the license (California A87470, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gilbert P. Eng
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A87470 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2600 Redondo Ave, Long Beach, CA 90806
- Phone
- (562) 988-7340
- Enumerated
- Oct 17, 2006
- Record last updated
- Dec 13, 2025
- Medicaid ID
- 00A874700 CA
- Medicare enrollment
- Enrolled (PECOS I20060207000691); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2600 Redondo Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ellen Amador, D.O.Family Medicine Physician1336244847
- Adela AmayaClinical Social Worker1922443142
- Diego Arrieta Paoli, RNRegistered Nurse1871438283
- Taylor ArthurClinical Social Worker1134744501
- Jeannette BakkeRegistered Nurse1629913934
- Tamara Balthazar, RACDay Training/Habilitation Specialist1568274249
Verify Gilbert P. Eng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A87470Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,404 Medicare Part D claims for 1,039 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 121 claims were for opioids.
Most prescribed
- Atorvastatin Calcium103 claims
- Amlodipine Besylate83 claims
- Omeprazole78 claims
- Hydrocodone-Acetaminophen70 claims
- Metformin Hcl70 claims
- Albuterol Sulfate Hfa69 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
- Healthcare Partners Affiliates Medical GroupLong Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gilbert P. Eng among 17,696 internal medicine physician records in California
Gilbert P. Eng, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2001 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 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
- John Adams, D.O.Long Beach, CA 908061801852900
- Mark Asbill, M.D.Long Beach, CA 908061558310896
- Alla Gartsman, M.D.Long Beach, CA 908061457317133
- Sabrina Harper, MDLong Beach, CA 908061023081924
- Richard Im, MDLong Beach, CA 908061972586840
- Tina Kitajima, M.D.Long Beach, CA 908061033164892
- Angela Lamotte, M.D.Long Beach, CA 908061538166764
- Raymond Lee, M.D.Long Beach, CA 908061295790277
Common questions
What is Gilbert P. Eng, M.D.'s NPI number?
Gilbert P. Eng, M.D.'s National Provider Identifier (NPI) is 1255411609, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gilbert P. Eng, M.D. located?
The NPPES record lists a practice address at 2600 Redondo Ave, Long Beach, CA, 90806. Phone: (562) 988-7340. Providers update this record themselves, so call before visiting.
How can I verify Gilbert P. Eng, M.D.'s license?
NPPES lists California license number A87470, 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 Gilbert P. Eng, M.D. prescribe under Medicare Part D?
In 2024, Gilbert P. Eng, M.D. had 2,404 Medicare Part D claims for 1,039 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.
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.