Pegah Mehdizadeh, DO
Internal Medicine Physician · Calabasas, CA
Pegah Mehdizadeh, DO is an internal medicine physician with a practice address in Calabasas, California, and NPI 1023101458, issued on Sep 30, 2006. Check the license (California 20A9367, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Pegah Mehdizadeh
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A9367 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3809 Paseo Primario, Calabasas, CA 91302
- Phone
- (818) 922-5204
- Enumerated
- Sep 30, 2006
- Record last updated
- Mar 28, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Pegah Mehdizadeh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A9367Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
22 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Pegah Mehdizadeh among 17,696 internal medicine physician records in California
Pegah Mehdizadeh, DO 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- 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).
15 internal medicine physician records list a practice address in Calabasas
They are 15 of the 786 NPPES records with a practice address in Calabasas, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Calabasas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Samuel BursteinCalabasas, CA 913021124037155
- Sagi Cohen, M.D.Calabasas, CA 913021679872311
- Luz Delportillo, M.D.Calabasas, CA 913021760554026
- Sayeh Eshraghi, MDCalabasas, CA 913021750533345
- Keith Garb, M.D.Calabasas, CA 913021740381177
- Wayne Imber, M.D.Calabasas, CA 913021003244518
- Richard Lander, M.D.Calabasas, CA 913021639242241
- Sean Leoni, M.D.Calabasas, CA 913021669544052
Common questions
What is Pegah Mehdizadeh, DO's NPI number?
Pegah Mehdizadeh, DO's National Provider Identifier (NPI) is 1023101458, issued on Sep 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Pegah Mehdizadeh, DO located?
The NPPES record lists a practice address at 3809 Paseo Primario, Calabasas, CA, 91302. Phone: (818) 922-5204. Providers update this record themselves, so call before visiting.
How can I verify Pegah Mehdizadeh, DO's license?
NPPES lists California license number 20A9367, 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 Pegah Mehdizadeh, DO prescribe under Medicare Part D?
In 2024, Pegah Mehdizadeh, DO had 22 Medicare Part D claims; 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.