Michael Papanicolaou, M.D.
NPI 1922038967 · Cardiovascular Disease Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Papanicolaou, M.D. is a Cardiovascular Disease Physician provider in Thousand Oaks, CA (NPI 1922038967).
Provider details
- NPI number
- 1922038967
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A43353 (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
19 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
6,421 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 | 2,099 | $137 |
| Rubidium Rb-82, Diagnostic, Per Study Dose, Up to 60 MillicuriesA9555 | 846 | $514 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 722 | $15 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision and Review By Physician93015 | 496 | $79 |
| Nuclear Medicine Studies of Blood Flow in Heart Muscle at Rest and With Stress78492 | 422 | $1,698 |
| Programming of Dual Lead Pacemaker System |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 71 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 678 | 209 |
| Metoprolol Succinate | 590 | 187 |
| Rosuvastatin Calcium | 549 | 160 |
| Apixabanbrand: Eliquis | 530 | 139 |
| Amlodipine Besylate | 511 | 158 |
| Ezetimibe | 488 | 146 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,735 across 125 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
- 2006-07-04
- Last updated
- 2011-10-17
Frequently asked questions
- What is Michael Papanicolaou's NPI number?
- Michael Papanicolaou's National Provider Identifier (NPI) is 1922038967, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Papanicolaou's specialty?
- Michael Papanicolaou is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Papanicolaou located?
- Michael Papanicolaou's practice location on file with NPPES is 1000 Newbury Rd, Thousand Oaks, CA 91320-6435.
- What is Michael Papanicolaou's phone number?
- The practice phone number listed in the NPPES registry for Michael Papanicolaou is (805) 480-2600.
- Does Michael Papanicolaou accept Medicare?
- Michael Papanicolaou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Papanicolaou's NPI active?
- Yes — Michael Papanicolaou's NPI (1922038967) is active in the NPPES registry as of the last update on 2011-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.