NPPES file of Aug 9, 2026

Hussein Nassr, MD

Critical Care Medicine (Internal Medicine) Physician · Whittie, CA

Hussein Nassr, MD is a critical care medicine (internal medicine) physician with a practice address in Whittie, California, and NPI 1821124454, issued on Feb 26, 2007. Check the license (California C51778, 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
1821124454
Name
Hussein Nassr
Credential
MD
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
C51778 CA
Self-reported in NPPES; status is on the state search
Practice location
12462 Putnam Street, Whittie, CA 90602
Phone
(562) 789-5470
Enumerated
Feb 26, 2007
Record last updated
Jun 23, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(562) 789-4480
Medicare enrollment
Enrolled (PECOS I20080115000318); accepts Medicare assignment
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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Verify Hussein Nassr in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C51778
    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

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98% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

13 Medicare Part D claims, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.

  1. Hussein Nassr13
  2. Specialty average696

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

  1. Whittier Pulmonary And Critical Care Medical Group, Inc.Whittier, CA

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

Hussein Nassr among 723 critical care medicine (internal medicine) physician records in California

Hussein Nassr, MD 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 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 46% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1993 · median 2005 among the 559 with a school on file
  • Record last updated2010 · 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.

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Daniel Akhavan, MDWhittier, CA 906021154384105
  2. Alfredo Castellanos, M.D.Whittier, CA 906021700088770
  3. Nadeem Chishti, M.D.Whittier, CA 906021700815461
  4. Kiumars Saketkhoo, MDWhittier, CA 906021093782518
  5. Maryam Zamanian, MDWhittier, CA 906021184672461
  6. Manohar Senra, M.D.Pico Rivera, CA 906601750575296
  7. Anthony Arredondo, M.D.Torrance, CA 905091164689972
  8. Charles Lanks, M.D.Torrance, CA 905091912199712

Common questions

What is Hussein Nassr, MD's NPI number?

Hussein Nassr, MD's National Provider Identifier (NPI) is 1821124454, issued on Feb 26, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Hussein Nassr, MD located?

The NPPES record lists a practice address at 12462 Putnam Street, Whittie, CA, 90602. Phone: (562) 789-5470. Providers update this record themselves, so call before visiting.

How can I verify Hussein Nassr, MD's license?

NPPES lists California license number C51778, 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 Hussein Nassr, MD prescribe under Medicare Part D?

In 2024, Hussein Nassr, MD had 13 Medicare Part D claims; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.