Catherine Sassoon, M.D.
Critical Care Medicine (Internal Medicine) Physician · Long Beach, CA
Catherine Sassoon, M.D. is a critical care medicine (internal medicine) physician with a practice address in Long Beach, California, and NPI 1881700516, issued on Aug 23, 2006. Check the license (California A29820, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Catherine Sassoon
- Credential
- M.D.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- A29820 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5901 E 7TH St, Long Beach, CA 90822
- Phone
- (562) 826-5831
- Enumerated
- Aug 23, 2006
- Record last updated
- Feb 22, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (562) 826-5832
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →
Also registered at 5901 E 7TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nneoma Achikam, LCSW, BCDClinical Social Worker1114182953
- Sameera Ahmad, ODOptometrist1164117891
- Sama Alabbas, PHARMDPharmacist1366165193
- Lawrence Albers, MDPsychiatry Physician1871697300
- Abby AlexanderOptometrist1871113068
- Tamara Alexander, PT, DPTPhysical Therapist1922116714
Verify Catherine Sassoon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A29820Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $121.79
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Catherine Sassoon among 723 critical care medicine (internal medicine) physician records in California
Catherine Sassoon, M.D. is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 60% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2008 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in California
There are 723 critical care medicine (internal medicine) physician records in California.
All 723 in California → Every provider in Long Beach → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Madlena Nalbandian, MD, MS, MPHLong Beach, CA 908131982108015
- Rajesh Chundu, DOLong Beach, CA 908061982258349
- Anirudh Kumar, MDLong Beach, CA 908061275196628
- James Logan, M.D.Long Beach, CA 908061023026838
- Roger Christensen, D.O.Long Beach, CA 908031114257771
- Mir Madani, M.D.Los Alamitos, CA 907201982611760
- Timothy Hulbert, MDBellflower, CA 907061194896019
- David Liem, MDBellflower, CA 907061699823484
Common questions
What is Catherine Sassoon, M.D.'s NPI number?
Catherine Sassoon, M.D.'s National Provider Identifier (NPI) is 1881700516, issued on Aug 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Sassoon, M.D. located?
The NPPES record lists a practice address at 5901 E 7TH St, Long Beach, CA, 90822. Phone: (562) 826-5831. Providers update this record themselves, so call before visiting.
How can I verify Catherine Sassoon, M.D.'s license?
NPPES lists California license number A29820, 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.
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.