John Philip Zack, M.D.
Ophthalmology Physician · Del Mar, CA
John Philip Zack, M.D. is an ophthalmology physician with a practice address in Del Mar, California, and NPI 1629046347, issued on Mar 9, 2006. Check the license (California C28587, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Philip Zack
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- C28587 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2295 LA Amatista RD, Del Mar, CA 92014
- Phone
- (858) 755-5797
- Enumerated
- Mar 9, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (858) 755-2901
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Verify John Philip Zack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C28587Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Philip Zack among 2,899 ophthalmology physician records in California
John Philip Zack, M.D. is one of 2,899 ophthalmology 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 not. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2026 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,899 in California → Every provider in Del Mar → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Jean-Paul Abboud, M.D., PH.D.Del Mar, CA 920141760776728
- Don Ellis, MDDel Mar, CA 920141720609878
- Bill Bell, M.D.Carlsbad, CA 920111194913988
- Michael Tracy, M.D.Carlsbad, CA 920111124229380
- Paul Chen, M.D.Carlsbad, CA 920091760486419
- Frank KohlEl Cajon, CA 920191649692914
- Christopher Spellman, M.D.Carlsbad, CA 920091265484018
- Franklin Crystal, MDEl Cajon, CA 920201770591521
Common questions
What is John Philip Zack, M.D.'s NPI number?
John Philip Zack, M.D.'s National Provider Identifier (NPI) is 1629046347, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Philip Zack, M.D. located?
The NPPES record lists a practice address at 2295 LA Amatista RD, Del Mar, CA, 92014. Phone: (858) 755-5797. Providers update this record themselves, so call before visiting.
How can I verify John Philip Zack, M.D.'s license?
NPPES lists California license number C28587, 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. 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.