Christopher Michael Day, MD
Pediatrics Physician · National City, CA
Christopher Michael Day, MD is a pediatrics physician with a practice address in National City, California, and NPI 1184121253, issued on Apr 6, 2018. Check the license (California A163862, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Christopher Michael Day
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A163862 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Euclid Ave, National City, CA 91950
- Phone
- (619) 515-2399
- Enumerated
- Apr 6, 2018
- Record last updated
- Jan 9, 2023
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 1000 Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christopher Michael Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A163862Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Christopher Michael Day among 9,272 pediatrics physician records in California
Christopher Michael Day, MD is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 2018, is newer than 86% of them.
- NPI issued2018 · 86% of these records are older, 11% newer
- In a Medicare fileNo · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2023 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 pediatrics physician records list a practice address in National City
They are 13 of the 749 NPPES records with a practice address in National City, and 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 9,272 in California → Every provider in National City → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Mohammed Bailony, MDNational City, CA 919501376625913
- Ahmad Bailony, M.D.National City, CA 919501790914422
- Teresita Barbadillo, M.D.National City, CA 919501952416695
- Que Chu, MDNational City, CA 919501750358768
- Zulma Curet, M.D.National City, CA 919501841561107
- Matthew Di Franco, M.D.National City, CA 919501841343548
- Blanca Fresno, M.D.National City, CA 919501346258787
- Rafael Garcia, MDNational City, CA 919501053414086
Common questions
What is Christopher Michael Day, MD's NPI number?
Christopher Michael Day, MD's National Provider Identifier (NPI) is 1184121253, issued on Apr 6, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Michael Day, MD located?
The NPPES record lists a practice address at 1000 Euclid Ave, National City, CA, 91950. Phone: (619) 515-2399. Providers update this record themselves, so call before visiting.
How can I verify Christopher Michael Day, MD's license?
NPPES lists California license number A163862, 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.