Michael Kozak
Anatomic Pathology & Clinical Pathology Physician · West Hollywood, CA
Michael Kozak is an anatomic pathology & clinical pathology physician with a practice address in West Hollywood, California, and NPI 1144859448, issued on Apr 7, 2020. Check the license (California 20A21105, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Kozak
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- 20A21105 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8700 Beverly Blvd # 8709, West Hollywood, CA 90048
- Phone
- (310) 423-6941
- Enumerated
- Apr 7, 2020
- Record last updated
- Jul 17, 2025
- Medicare enrollment
- Enrolled (PECOS I20250728002308); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2020
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →
Verify Michael Kozak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A21105Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Cedars-Sinai Medical Care FoundationWest Hollywood, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Kozak among 1,554 anatomic pathology & clinical pathology physician records in California
Michael Kozak is one of 1,554 anatomic pathology & clinical pathology physician records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 95% of them.
- NPI issued2020 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2020 · median 2003 among the 891 with a school on file
- Record last updated2025 · 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 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
41 anatomic pathology & clinical pathology physician records list a practice address in West Hollywood
They are 41 of the 2,619 NPPES records with a practice address in West Hollywood, and 1,554 anatomic pathology & clinical pathology physician records in California.
All 1,554 in California → Every provider in West Hollywood → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Shikha Bose, M.D.West Hollywood, CA 900481497758213
- Farnaz Dadmanesh, M.D.West Hollywood, CA 900481205839966
- Mariza De Peralta-VenturinaWest Hollywood, CA 900481326007253
- Xuemo Fan, M.D.West Hollywood, CA 900481518960251
- Mark Haas, M.D.Los Angeles, CA 900481750330478
- Ellen Klapper, MDWest Hollywood, CA 900481487650966
- Mercury Lin, M.D.West Hollywood, CA 900481619947397
- Daniel Luthringer, MDWest Hollywood, CA 900481912904533
Common questions
What is Michael Kozak's NPI number?
Michael Kozak's National Provider Identifier (NPI) is 1144859448, issued on Apr 7, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Michael Kozak located?
The NPPES record lists a practice address at 8700 Beverly Blvd # 8709, West Hollywood, CA, 90048. Phone: (310) 423-6941. Providers update this record themselves, so call before visiting.
How can I verify Michael Kozak's license?
NPPES lists California license number 20A21105, 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.
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.