Nazanin Gunn, M.D., M.H.A.
NPI 1306165857 · Internal Medicine Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nazanin Gunn, M.D., M.H.A. is a Internal Medicine Physician provider in Thousand Oaks, CA (NPI 1306165857).
Provider details
- NPI number
- 1306165857
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.H.A.
- Sex
- Female
- Sole proprietor
- No
- License
- A127410 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,612 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 575 | $91 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 402 | $79 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 232 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 212 | $73 |
| Administration of Influenza Virus VaccineG0008 | 52 | $35 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 61 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 204 | 59 |
| Levothyroxine Sodium | 164 | 46 |
| Rosuvastatin Calcium | 162 | 51 |
| Losartan Potassium | 160 | 45 |
| Metformin Hclbrand: Metformin Hcl Er | 143 | 41 |
| Amlodipine Besylate | 139 | 45 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$423 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-05-24
- Last updated
- 2020-09-28
- Certified
- 2020-09-28
Frequently asked questions
- What is Nazanin Gunn's NPI number?
- Nazanin Gunn's National Provider Identifier (NPI) is 1306165857, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nazanin Gunn's specialty?
- Nazanin Gunn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nazanin Gunn located?
- Nazanin Gunn's practice location on file with NPPES is 100 Moody Ct, Thousand Oaks, CA 91360-6077.
- What is Nazanin Gunn's phone number?
- The practice phone number listed in the NPPES registry for Nazanin Gunn is (805) 418-3500.
- Does Nazanin Gunn accept Medicare?
- Nazanin Gunn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nazanin Gunn's NPI active?
- Yes — Nazanin Gunn's NPI (1306165857) is active in the NPPES registry as of the last update on 2020-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.