Peter Margolis, M.D.
NPI 1306876164 · Internal Medicine Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Margolis, M.D. is a Internal Medicine Physician provider in Thousand Oaks, CA (NPI 1306876164).
Provider details
- NPI number
- 1306876164
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G40308 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,083 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 610 | $97 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 335 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 80 | $139 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 26 | $61 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 16 | $75 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 69 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 244 | 64 |
| Famotidine | 147 | 44 |
| Rosuvastatin Calcium | 147 | 41 |
| Levothyroxine Sodium | 122 | 29 |
| Pantoprazole Sodium | 104 | 29 |
| Amlodipine Besylate | 79 | 27 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-04
- Last updated
- 2023-08-28
- Certified
- 2023-08-27
Frequently asked questions
- What is Peter Margolis's NPI number?
- Peter Margolis's National Provider Identifier (NPI) is 1306876164, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Margolis's specialty?
- Peter Margolis is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Margolis located?
- Peter Margolis's practice location on file with NPPES is 333 S Moorpark Rd, Thousand Oaks, CA 91361-1008.
- What is Peter Margolis's phone number?
- The practice phone number listed in the NPPES registry for Peter Margolis is (805) 399-2146.
- Does Peter Margolis accept Medicare?
- Peter Margolis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Margolis's NPI active?
- Yes — Peter Margolis's NPI (1306876164) is active in the NPPES registry as of the last update on 2023-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.