Nazanin Izadpanah Gunn, M.D., M.H.A.
Internal Medicine Physician · Thousand Oaks, CA
Nazanin Izadpanah Gunn, M.D., M.H.A. is an internal medicine physician with a practice address in Thousand Oaks, California, and NPI 1306165857, issued on May 24, 2010. Check the license (California A127410, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nazanin Izadpanah Gunn
- Credential
- M.D., M.H.A.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A127410 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Moody CT, Thousand Oaks, CA 91360
- Phone
- (805) 418-3500
- Enumerated
- May 24, 2010
- Record last updated
- Sep 28, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151013000015); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2012
- 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 100 Moody CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nazanin Izadpanah Gunn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A127410Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average internal medicine physician in 2024
3,038 Medicare Part D claims for 356 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Atorvastatin Calcium204 claims
- Levothyroxine Sodium164 claims
- Rosuvastatin Calcium162 claims
- Losartan Potassium160 claims
- Metformin Hcl Er143 claims
- Amlodipine Besylate139 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.
Industry payments in 2024: $423.05
4 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk 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.
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nazanin Izadpanah Gunn among 17,696 internal medicine physician records in California
Nazanin Izadpanah Gunn, M.D., M.H.A. 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 2010, is newer than 63% of them.
- NPI issued2010 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2012 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 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).
62 internal medicine physician records list a practice address in Thousand Oaks
They are 62 of the 2,434 NPPES records with a practice address in Thousand Oaks, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Thousand Oaks → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jose-Nitram Aliling, M.D.Thousand Oaks, CA 913601912177759
- Manoj Aswani, M.D.Thousand Oaks, CA 913601801848825
- Pedram Bagheri, MDThousand Oaks, CA 913601578785275
- Russell Hines, M.D.Thousand Oaks, CA 913601548213101
- Christina Jacob, M.D.Thousand Oaks, CA 913601497758957
- Bernard Klein, M.D.Thousand Oaks, CA 913601831382738
- Jane Lindberg, MDThousand Oaks, CA 913601467548149
- Steven McCarthy, M.D.Thousand Oaks, CA 913601497765309
Common questions
What is Nazanin Izadpanah Gunn, M.D., M.H.A.'s NPI number?
Nazanin Izadpanah Gunn, M.D., M.H.A.'s National Provider Identifier (NPI) is 1306165857, issued on May 24, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Nazanin Izadpanah Gunn, M.D., M.H.A. located?
The NPPES record lists a practice address at 100 Moody CT, Thousand Oaks, CA, 91360. Phone: (805) 418-3500. Providers update this record themselves, so call before visiting.
How can I verify Nazanin Izadpanah Gunn, M.D., M.H.A.'s license?
NPPES lists California license number A127410, 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 Nazanin Izadpanah Gunn, M.D., M.H.A. prescribe under Medicare Part D?
In 2024, Nazanin Izadpanah Gunn, M.D., M.H.A. had 3,038 Medicare Part D claims for 356 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.