Anthony Nicholas Karnezis, MD, PHD
Anatomic Pathology & Clinical Pathology Physician · Sacramento, CA
Anthony Nicholas Karnezis, MD, PHD is an anatomic pathology & clinical pathology physician with a practice address in Sacramento, California, and NPI 1841566221, issued on Mar 29, 2012. Check the license (California A121240, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Anthony Nicholas Karnezis
- Credential
- MD, PHD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- A121240 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4400 V St, Sacramento, CA 95817
- Phone
- (916) 734-2651
- Enumerated
- Mar 29, 2012
- Record last updated
- May 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180612003065); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 2002
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →
Also registered at 4400 V St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ashna Aggarwal, MDAnatomic Pathology Physician1235624362
- Naoki Akanuma, MD PHDAnatomic Pathology Physician1881222974
- Nada Al QaysiAnatomic Pathology & Clinical Pathology Physician1376076406
- Sarah Barnhard, MDBlood Banking & Transfusion Medicine Physician1598082711
- Tatyana Berezenko, MDStudent in an Organized Health Care Education/Training Program1780828244
Verify Anthony Nicholas Karnezis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A121240Check 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
- Regents OF The Univ OF CASacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anthony Nicholas Karnezis among 1,554 anatomic pathology & clinical pathology physician records in California
Anthony Nicholas Karnezis, MD, PHD 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 2012, is newer than 73% of them.
- NPI issued2012 · 73% of these records are older, 23% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2002 · median 2003 among the 891 with a school on file
- Record last updated2020 · 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).
Anatomic Pathology & Clinical Pathology Physician providers in California
There are 1,554 anatomic pathology & clinical pathology physician records in California.
All 1,554 in California → Every provider in Sacramento → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Alaa Afify, M.D.Sacramento, CA 958171245212950
- Dariusz Borys, M.D.Sacramento, CA 958171639385180
- Katherine Deem, M.D.Sacramento, CA 958171265526149
- Denis Dwyre, M.D.Sacramento, CA 958171104808823
- Leonor Fernando, MDSacramento, CA 958171144265752
- Florette Gray Hazard, MDSacramento, CA 958171659578706
- Lee-Way Jin, M.D.Sacramento, CA 958171407057573
- Karen Matsukuma, MD, PHDSacramento, CA 958171275716219
Common questions
What is Anthony Nicholas Karnezis, MD, PHD's NPI number?
Anthony Nicholas Karnezis, MD, PHD's National Provider Identifier (NPI) is 1841566221, issued on Mar 29, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Anthony Nicholas Karnezis, MD, PHD located?
The NPPES record lists a practice address at 4400 V St, Sacramento, CA, 95817. Phone: (916) 734-2651. Providers update this record themselves, so call before visiting.
How can I verify Anthony Nicholas Karnezis, MD, PHD's license?
NPPES lists California license number A121240, 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.