Tom Theodore Karnezis, M.D.
Otolaryngology Physician · Baldwin Park, CA
Tom Theodore Karnezis, M.D. is an otolaryngology physician with a practice address in Baldwin Park, California, and NPI 1023272275, issued on Jul 17, 2008. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tom Theodore Karnezis
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- TL36720 SC
Self-reported in NPPES; status is on the state search - Practice location
- 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
- Phone
- (626) 851-6100
- Enumerated
- Jul 17, 2008
- Record last updated
- Dec 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151119002115); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2008
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 1011 Baldwin Park Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Abdulla, M.D.Surgery Physician1699200840
- Julia Aburto-Erazo, NPNurse Practitioner1922175777
- Mauricio Acevedo, MDInternal Medicine Physician1659442614
- Helen Achio, PHARM.D.Pharmacist1225114614
- Olufemi Adenuga, M.D, MPHPulmonary Disease Physician1134389125
- Soma Agarwal, MDOphthalmology Physician1437220316
Verify Tom Theodore Karnezis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average otolaryngology physician in 2024
186 Medicare Part D claims for 87 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Ipratropium Bromide30 claims
- Pantoprazole Sodium21 claims
- Omeprazole17 claims
- Hydrocodone-Acetaminophen15 claims
- Azelastine Hcl14 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupGardena, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tom Theodore Karnezis among 1,212 otolaryngology physician records in California
Tom Theodore Karnezis, M.D. is one of 1,212 otolaryngology physician records with a practice address in California. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.
- NPI issued2008 · 58% of these records are older, 35% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2008 · median 2004 among the 818 with a school on file
- Record last updated2021 · 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 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in Baldwin Park → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Michael Chen, M.D.Baldwin Park, CA 917061710247051
- Jennifer Tran, M.D.Baldwin Park, CA 917061841488525
- Roger Murken, MDClaremont, CA 917111821660838
- Dun Ha, MDCovina, CA 917231235199530
- James Williams, MDCovina, CA 917231316924608
- Shin-Fu Hsu, M.D.Hacienda Heights, CA 917451447446679
- Tai Chang, M.D.Monterey Park, CA 917541619062189
- Ted Lai, M.D.Monterey Park, CA 917541659397552
Common questions
What is Tom Theodore Karnezis, M.D.'s NPI number?
Tom Theodore Karnezis, M.D.'s National Provider Identifier (NPI) is 1023272275, issued on Jul 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Tom Theodore Karnezis, M.D. located?
The NPPES record lists a practice address at 1011 Baldwin Park Blvd, Baldwin Park, CA, 91706. Phone: (626) 851-6100. Providers update this record themselves, so call before visiting.
How can I verify Tom Theodore Karnezis, M.D.'s license?
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 Tom Theodore Karnezis, M.D. prescribe under Medicare Part D?
In 2024, Tom Theodore Karnezis, M.D. had 186 Medicare Part D claims for 87 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
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.