Luciano Custo Greig
Ophthalmology Physician · San Francisco, CA
Luciano Custo Greig is an ophthalmology physician with a practice address in San Francisco, California, and NPI 1154850956, issued on Jun 6, 2017. Check the license (California A164403, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Luciano Custo Greig
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A164403 CA
Self-reported in NPPES; status is on the state search - Practice location
- 490 Illinois St, San Francisco, CA 94143
- Phone
- (415) 353-2800
- Enumerated
- Jun 6, 2017
- Record last updated
- Oct 2, 2024
- Medicare enrollment
- Enrolled (PECOS I20220509002233); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 490 Illinois St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tiffany Chen, OD, MSOptometrist1114601465
- Adrienne Coulter, ODOptometrist1447923073
- Caroline Estes-Nore, MDStudent in an Organized Health Care Education/Training Program1760187769
- Simon Fung, MDOphthalmology Physician1194215665
- O'Rese Knight, M.D.Ophthalmology Physician1093956013
- Shanda Manion, CNMMidwife1861365579
Verify Luciano Custo Greig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A164403Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average ophthalmology physician in 2024
89 Medicare Part D claims for 30 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Prednisolone Acetate25 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: $1,048.61
10 payments; by number, the most common kind was food and beverage; the largest payer was Dutch Ophthalmic, USA. The 13,221 providers of this specialty with any payment received $4,535.02 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
- Ucsf Medical Group Business ServicesBerkeley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Luciano Custo Greig among 2,899 ophthalmology physician records in California
Luciano Custo Greig 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. Its NPI, issued in 2017, is newer than 88% of them.
- NPI issued2017 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2001 among the 1,907 with a school on file
- Record last updated2024 · 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.
All 2,899 in California → Every provider in San Francisco → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Nisha Acharya, M.D.San Francisco, CA 941431972544872
- Robert Bhisitkul, MDSan Francisco, CA 941431831138676
- Joseph Crawford, MDSan Francisco, CA 941431831141712
- Eugene De Juan, MDSan Francisco, CA 941431043262074
- Jacque Duncan, MDSan Francisco, CA 941431942252978
- Allan Flach, MDSan Francisco, CA 941431043261134
- Jonathan Horton, MDSan Francisco, CA 941431992757363
- David Hwang, MDSan Francisco, CA 941431346292224
Common questions
What is Luciano Custo Greig's NPI number?
Luciano Custo Greig's National Provider Identifier (NPI) is 1154850956, issued on Jun 6, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Luciano Custo Greig located?
The NPPES record lists a practice address at 490 Illinois St, San Francisco, CA, 94143. Phone: (415) 353-2800. Providers update this record themselves, so call before visiting.
How can I verify Luciano Custo Greig's license?
NPPES lists California license number A164403, 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 Luciano Custo Greig prescribe under Medicare Part D?
In 2024, Luciano Custo Greig had 89 Medicare Part D claims for 30 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.