Kourosh Khamooshian, MD
Internal Medicine Physician · La Mesa, CA
Kourosh Khamooshian, MD is an internal medicine physician with a practice address in La Mesa, California, and NPI 1659523975, issued on Oct 17, 2008. Check the license (California A110901, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kourosh Khamooshian
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A110901 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5565 Grossmont Center Dr Ste 444, La Mesa, CA 91942
- Phone
- (888) 475-6662
- Enumerated
- Oct 17, 2008
- Record last updated
- Jul 1, 2025
- Fax
- (858) 408-3844
- Medicare enrollment
- Enrolled (PECOS I20130502000050); accepts Medicare assignment
- 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 5565 Grossmont Center Dr Ste 444
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Narges Baluch, MDAllergy & Immunology Physician1720822133
Verify Kourosh Khamooshian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A110901Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% more Medicare Part D claims than the average internal medicine physician in 2024
5,529 Medicare Part D claims for 541 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 103 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium255 claims
- Amlodipine Besylate164 claims
- Gabapentin161 claims
- Levothyroxine Sodium146 claims
- Jardiance144 claims
- Pantoprazole Sodium119 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $734.67
33 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- Eisenhower Medical CenterRancho Mirage, CA · Acute Care Hospitals4 of 5 stars
- Caremd, Inc.La Mesa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Kourosh Khamooshian among 17,696 internal medicine physician records in California
Kourosh Khamooshian, MD 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 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1998 · 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).
61 internal medicine physician records list a practice address in La Mesa
They are 61 of the 2,168 NPPES records with a practice address in La Mesa, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in La Mesa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ali Alamar, M.D.La Mesa, CA 919421972606374
- Mary Alexander, M.D.La Mesa, CA 919421538177845
- Felicia Briones-Colman, M.D.La Mesa, CA 919421962517367
- Robert Foster, MDLa Mesa, CA 919421871593756
- Eva Leonard, M.D.La Mesa, CA 919421386602746
- Douglas Levey, M.D.La Mesa, CA 919421932210523
- Ellyn Levine, M.D.La Mesa, CA 919421760470546
- Teh Liang, M.D.La Mesa, CA 919421255340535
Common questions
What is Kourosh Khamooshian, MD's NPI number?
Kourosh Khamooshian, MD's National Provider Identifier (NPI) is 1659523975, issued on Oct 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Kourosh Khamooshian, MD located?
The NPPES record lists a practice address at 5565 Grossmont Center Dr Ste 444, La Mesa, CA, 91942. Phone: (888) 475-6662. Providers update this record themselves, so call before visiting.
How can I verify Kourosh Khamooshian, MD's license?
NPPES lists California license number A110901, 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 Kourosh Khamooshian, MD prescribe under Medicare Part D?
In 2024, Kourosh Khamooshian, MD had 5,529 Medicare Part D claims for 541 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Kourosh Khamooshian, MD's MIPS final score?
The 2023 MIPS final score is 84.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.