NPPES file of Aug 9, 2026

Taher Katouzian

Internal Medicine Physician · Palmdale, CA

Taher Katouzian is an internal medicine physician with a practice address in Palmdale, California, and NPI 1902062151, issued on Aug 6, 2008. Check the license (California 20A12692, 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
1902062151
Name
Taher Katouzian
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20A12692 CA
Self-reported in NPPES; status is on the state search
Practice location
38600 Medical Center Dr, Palmdale, CA 93551
Phone
(661) 382-5000
Enumerated
Aug 6, 2008
Record last updated
Nov 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140721002501); 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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Also registered at 38600 Medical Center Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Chris AglubaPhysical Therapist1104671155
  2. Sadia AkramStudent in an Organized Health Care Education/Training Program1689517633
  3. Albert Amoani, PACPhysician Assistant1689613515
  4. Ralph James Andres, MDStudent in an Organized Health Care Education/Training Program1285438523
  5. Oscar Arcia, MDStudent in an Organized Health Care Education/Training Program1215870308
  6. Edgardo Arevalo, MDStudent in an Organized Health Care Education/Training Program1427859750

Verify Taher Katouzian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A12692
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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91% fewer Medicare Part D claims than the average internal medicine physician in 2024

278 Medicare Part D claims for 106 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Taher Katouzian278
  2. Specialty average3,176

Most prescribed

  1. Pantoprazole Sodium18 claims
  2. Clopidogrel17 claims
  3. Amlodipine Besylate14 claims
  4. Potassium Chloride14 claims
  5. Cefpodoxime Proxetil13 claims
  6. Lisinopril13 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

  1. Southern California Permanente Medical GroupPanorama City, CA

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

Taher Katouzian among 17,696 internal medicine physician records in California

Taher Katouzian 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
  • Graduated2008 · median 2004 among the 11,065 with a school on file
  • Record last updated2021 · 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).

25 internal medicine physician records list a practice address in Palmdale

They are 25 of the 2,077 NPPES records with a practice address in Palmdale, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Arsineh Artounian Savarani, DOPalmdale, CA 935511346827326
  2. Camellia Babaie, M.D.Palmdale, CA 935511902175441
  3. Joan Chapman, D.O.Palmdale, CA 935511225329733
  4. Wah Wah Chu, MDPalmdale, CA 935511891018719
  5. Pamela De Silva, MDPalmdale, CA 935511568414548
  6. Hamza Gohar, D.O.Palmdale, CA 935511215464037
  7. Sadhana Kamath, M.D.Palmdale, CA 935511316996002
  8. Yunha KimPalmdale, CA 935511790207579

Common questions

What is Taher Katouzian's NPI number?

Taher Katouzian's National Provider Identifier (NPI) is 1902062151, issued on Aug 6, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Taher Katouzian located?

The NPPES record lists a practice address at 38600 Medical Center Dr, Palmdale, CA, 93551. Phone: (661) 382-5000. Providers update this record themselves, so call before visiting.

How can I verify Taher Katouzian's license?

NPPES lists California license number 20A12692, 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 Taher Katouzian prescribe under Medicare Part D?

In 2024, Taher Katouzian had 278 Medicare Part D claims for 106 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.