Paolo Vincent Zizzo, D.O.
Internal Medicine Physician · Carlsbad, CA
Paolo Vincent Zizzo, D.O. is an internal medicine physician with a practice address in Carlsbad, California, and NPI 1396750279, issued on Jul 30, 2006. Check the license (California 20A6835, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Paolo Vincent Zizzo
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A6835 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5055 Avenida Encinas, Carlsbad, CA 92008
- Phone
- (760) 448-4412
- Enumerated
- Jul 30, 2006
- Record last updated
- Sep 20, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (760) 918-9006
- Medicare enrollment
- Enrolled (PECOS I20040527000783); accepts Medicare assignment
- Medical or professional school
- College Of Osteo Med Of The Pacific At Pomona, 1994
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 5055 Avenida Encinas
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Poses, M.D.Geriatric Medicine (Internal Medicine) Physician1467461418
Verify Paolo Vincent Zizzo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A6835Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average internal medicine physician in 2024
960 Medicare Part D claims for 80 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 11 claims were for opioids.
Most prescribed
- Quetiapine Fumarate99 claims
- Levothyroxine Sodium73 claims
- Furosemide55 claims
- Potassium Chloride43 claims
- Mirtazapine41 claims
- Amlodipine Besylate40 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.
Paolo Vincent Zizzo among 17,696 internal medicine physician records in California
Paolo Vincent Zizzo, D.O. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1994 · median 2004 among the 11,065 with a school on file
- Record last updated2017 · 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 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Carlsbad → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Maribeth Chong, M.DCarlsbad, CA 920081932134756
- Yoo Jin Chong, M.DCarlsbad, CA 920081831124650
- Andrew Hall, M.D.Carlsbad, CA 920081154494565
- Stacie Ly, MDCarlsbad, CA 920081114028669
- Todd Ovokaitys, MDCarlsbad, CA 920081760029706
- Michael Pham, DOCarlsbad, CA 920081477940658
- Jonathan Rivkin, MDCarlsbad, CA 920081689717886
- Deepak Chopra, M.D.Carlsbad, CA 920091821223835
Common questions
What is Paolo Vincent Zizzo, D.O.'s NPI number?
Paolo Vincent Zizzo, D.O.'s National Provider Identifier (NPI) is 1396750279, issued on Jul 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Paolo Vincent Zizzo, D.O. located?
The NPPES record lists a practice address at 5055 Avenida Encinas, Carlsbad, CA, 92008. Phone: (760) 448-4412. Providers update this record themselves, so call before visiting.
How can I verify Paolo Vincent Zizzo, D.O.'s license?
NPPES lists California license number 20A6835, 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 Paolo Vincent Zizzo, D.O. prescribe under Medicare Part D?
In 2024, Paolo Vincent Zizzo, D.O. had 960 Medicare Part D claims for 80 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.