Amy Lightner Day, M.D.
Surgery Physician · Chula Vista, CA
Amy Lightner Day, M.D. is a surgery physician with a practice address in Chula Vista, California, and NPI 1164466173, issued on Jun 16, 2006. Check the license (California A71460, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Amy Lightner Day
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- A71460 CA
Self-reported in NPPES; status is on the state search - Practice location
- 754 Medical Center CT, Chula Vista, CA 91911
- Phone
- (619) 656-6493
- Enumerated
- Jun 16, 2006
- Record last updated
- Jul 7, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (619) 656-5727
- Medicaid ID
- 00A7 14600 CA
- Medicare enrollment
- Enrolled (PECOS I20050613001207); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 754 Medical Center CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Amy Lightner Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A71460Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average surgery physician in 2024
76 Medicare Part D claims for 49 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Hydrocortisone32 claims
- Hydrocodone-Acetaminophen14 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.
Industry payments in 2024: $174.64
3 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Scripps HealthLa Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Amy Lightner Day among 3,118 surgery physician records in California
Amy Lightner Day, M.D. is one of 3,118 surgery physician records with a practice address in California. 75% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1997 · median 2003 among the 1,901 with a school on file
- Record last updated2016 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Chula Vista → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Venustiano Guerra, MDChula Vista, CA 919111902904998
- Alex Allwein, MDChula Vista, CA 919101821066333
- Rodolfo Arcovedo, M.D.Chula Vista, CA 919101225018880
- Hugo Barrera, M.D.Chula Vista, CA 919101043299100
- Manuel BelandresChula Vista, CA 919101417287236
- Clifton Ewbank, M.D.Chula Vista, CA 919101043369416
- Andrew Hsu, MDChula Vista, CA 919101083817399
- Bradford Hsu, M.D.Chula Vista, CA 919101912968389
Common questions
What is Amy Lightner Day, M.D.'s NPI number?
Amy Lightner Day, M.D.'s National Provider Identifier (NPI) is 1164466173, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Amy Lightner Day, M.D. located?
The NPPES record lists a practice address at 754 Medical Center CT, Chula Vista, CA, 91911. Phone: (619) 656-6493. Providers update this record themselves, so call before visiting.
How can I verify Amy Lightner Day, M.D.'s license?
NPPES lists California license number A71460, 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 Amy Lightner Day, M.D. prescribe under Medicare Part D?
In 2024, Amy Lightner Day, M.D. had 76 Medicare Part D claims for 49 beneficiaries; the average among surgery physician prescribers was 147. 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.