Michael Nicholas Papanicolaou, M.D.
Cardiovascular Disease Physician · Thousand Oaks, CA
Michael Nicholas Papanicolaou, M.D. is a cardiovascular disease physician with a practice address in Thousand Oaks, California, and NPI 1922038967, issued on Jul 4, 2006. Check the license (California A43353, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Nicholas Papanicolaou
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- A43353 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Newbury RD, Thousand Oaks, CA 91320
- Phone
- (805) 480-2600
- Enumerated
- Jul 4, 2006
- Record last updated
- Oct 17, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (805) 480-2677
- Medicare enrollment
- Enrolled (PECOS I20110110000172); accepts Medicare assignment
- Medical or professional school
- Duke University School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 1000 Newbury RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Bruce Kaplan, D.C.Chiropractor1861651564
Verify Michael Nicholas Papanicolaou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A43353Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average cardiovascular disease physician in 2024
7,733 Medicare Part D claims for 946 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Atorvastatin Calcium678 claims
- Metoprolol Succinate590 claims
- Rosuvastatin Calcium549 claims
- Eliquis530 claims
- Amlodipine Besylate511 claims
- Ezetimibe488 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,735.02
125 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 16,686 providers of this specialty with any payment received $3,819.56 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
- Heart Center CardiologyThousand Oaks, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Nicholas Papanicolaou among 2,574 cardiovascular disease physician records in California
Michael Nicholas Papanicolaou, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1985 · median 1999 among the 1,742 with a school on file
- Record last updated2011 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Thousand Oaks → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Hans Gao, MDThousand Oaks, CA 913201538663919
- Christopher Purmer, M.D.Thousand Oaks, CA 913201124058169
- Scott Wasserman, MDNewbury Park, CA 913201528405818
- Felix BarteNewhall, CA 913211922119148
- Harold QuanNewhall, CA 913211033220256
- Madhu ModyEncino, CA 913161700295680
- Zouheir Elias, MDNorthridge, CA 913251962460501
- Richard Pego, MDNorthridge, CA 913251073627022
Common questions
What is Michael Nicholas Papanicolaou, M.D.'s NPI number?
Michael Nicholas Papanicolaou, M.D.'s National Provider Identifier (NPI) is 1922038967, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Nicholas Papanicolaou, M.D. located?
The NPPES record lists a practice address at 1000 Newbury RD, Thousand Oaks, CA, 91320. Phone: (805) 480-2600. Providers update this record themselves, so call before visiting.
How can I verify Michael Nicholas Papanicolaou, M.D.'s license?
NPPES lists California license number A43353, 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 Michael Nicholas Papanicolaou, M.D. prescribe under Medicare Part D?
In 2024, Michael Nicholas Papanicolaou, M.D. had 7,733 Medicare Part D claims for 946 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Michael Nicholas Papanicolaou, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.