Hang T. Ly, MD
Ophthalmology Physician · Milpitas, CA
Hang T. Ly, MD is an ophthalmology physician with a practice address in Milpitas, California, and NPI 1265519102, issued on Oct 31, 2006. Check the license (California A73970, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hang T. Ly
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A73970 CA
Self-reported in NPPES; status is on the state search - Practice location
- 770 E Calaveras Blvd, Milpitas, CA 95035
- Phone
- (650) 945-2900
- Enumerated
- Oct 31, 2006
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A739700 CA
- Medicare enrollment
- Enrolled (PECOS I20110307000455); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 770 E Calaveras Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Hang T. Ly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A73970Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% more Medicare Part D claims than the average ophthalmology physician in 2024
1,590 Medicare Part D claims for 430 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Latanoprost342 claims
- Dorzolamide-Timolol286 claims
- Brimonidine Tartrate157 claims
- Prednisolone Acetate155 claims
- Timolol Maleate129 claims
- Ofloxacin105 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hang T. Ly among 2,899 ophthalmology physician records in California
Hang T. Ly, MD 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1997 · median 2001 among the 1,907 with a school on file
- Record last updated2021 · 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 Milpitas → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Kris Karlen, MDMilpitas, CA 950351962589804
- Tina Ku, M.D.Milpitas, CA 950351265745780
- Tony Andrews, M.D.Los Gatos, CA 950321750316709
- Ryan Basham, MDLos Gatos, CA 950321083876098
- Harrup Kaur, M.D., M.H.SC.Los Gatos, CA 950321427038074
- Christine Langell, M.D.Los Gatos, CA 950321053350561
- Anita Breckenridge, MDLos Gatos, CA 950301396841037
- Christopher Engelman, MDLos Gatos, CA 950301093778326
Common questions
What is Hang T. Ly, MD's NPI number?
Hang T. Ly, MD's National Provider Identifier (NPI) is 1265519102, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hang T. Ly, MD located?
The NPPES record lists a practice address at 770 E Calaveras Blvd, Milpitas, CA, 95035. Phone: (650) 945-2900. Providers update this record themselves, so call before visiting.
How can I verify Hang T. Ly, MD's license?
NPPES lists California license number A73970, 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 Hang T. Ly, MD prescribe under Medicare Part D?
In 2024, Hang T. Ly, MD had 1,590 Medicare Part D claims for 430 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.