Nazir Khaja, M.D.
Gastroenterology Physician · Torrance, CA
Nazir Khaja, M.D. is a gastroenterology physician with a practice address in Torrance, California, and NPI 1962428102, issued on Jul 14, 2006. Check the license (California A24571, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nazir Khaja
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A24571 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20911 Earl St, Torrance, CA 90503
- Phone
- (310) 370-4660
- Enumerated
- Jul 14, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (310) 793-0710
- Medicare enrollment
- Enrolled (PECOS I20040715001434); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 20911 Earl St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nazir Khaja in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A24571Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average gastroenterology physician in 2024
569 Medicare Part D claims for 100 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole83 claims
- Dicyclomine Hcl56 claims
- Pantoprazole Sodium25 claims
- Mesalamine23 claims
- Atorvastatin Calcium20 claims
- Furosemide18 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.
Nazir Khaja among 2,140 gastroenterology physician records in California
Nazir Khaja, M.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1961 · median 2002 among the 1,538 with a school on file
- Record last updated2007 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Torrance → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Kelsey Collins, MDTorrance, CA 905031912434382
- Mark Takemura, MDTorrance, CA 905031487721189
- Robert Webman, M.DTorrance, CA 905031174565527
- Steven Weinstock, M.D.Torrance, CA 905031477620177
- Anil Dev, M.D.Torrance, CA 905021548279599
- Viktor Eysselein, M.D.Torrance, CA 905021609848191
- Linda Hou, MDTorrance, CA 905021982870622
- Henry Lam, DOTorrance, CA 905021457972648
Common questions
What is Nazir Khaja, M.D.'s NPI number?
Nazir Khaja, M.D.'s National Provider Identifier (NPI) is 1962428102, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nazir Khaja, M.D. located?
The NPPES record lists a practice address at 20911 Earl St, Torrance, CA, 90503. Phone: (310) 370-4660. Providers update this record themselves, so call before visiting.
How can I verify Nazir Khaja, M.D.'s license?
NPPES lists California license number A24571, 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 Nazir Khaja, M.D. prescribe under Medicare Part D?
In 2024, Nazir Khaja, M.D. had 569 Medicare Part D claims for 100 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.