Garlan Lo, M.D.
NPI 1043276140 · Ophthalmology Physician · Hacienda Heights, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Garlan Lo, M.D. is a Ophthalmology Physician provider in Hacienda Heights, CA (NPI 1043276140).
Provider details
- NPI number
- 1043276140
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G57913 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
11,069 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Measurement of Corneal Curvature and Depth of Eye92136 | 2,068 | $28 |
| Established Patient Complete Exam of Visual System92014 | 1,926 | $140 |
| Imaging of Retina92134 | 1,533 | $43 |
| Established Patient Problem Focused Exam of Visual System92012 | 1,385 | $99 |
| Exam of Visual Field With Extended Testing92083 | 1,209 | $71 |
| Photography of the Retina92250 | 1,159 | $39 |
| Imaging of Optic Nerve92133 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 50 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 4,036 | 1,307 |
| Latanoprost | 3,343 | 771 |
| Erythromycin Basebrand: Erythromycin | 1,113 | 425 |
| Timolol Maleate | 1,112 | 273 |
| Cyclosporine | 1,106 | 395 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 1,089 | 271 |
| Cyclosporinebrand: Restasis | 1,007 | 319 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,534 across 73 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-26
- Last updated
- 2008-01-09
Frequently asked questions
- What is Garlan Lo's NPI number?
- Garlan Lo's National Provider Identifier (NPI) is 1043276140, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Garlan Lo's specialty?
- Garlan Lo is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Garlan Lo located?
- Garlan Lo's practice location on file with NPPES is 1850 S Azusa Ave, Hacienda Heights, CA 91745-6813.
- What is Garlan Lo's phone number?
- The practice phone number listed in the NPPES registry for Garlan Lo is (626) 912-6888.
- Does Garlan Lo accept Medicare?
- Garlan Lo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Garlan Lo's NPI active?
- Yes — Garlan Lo's NPI (1043276140) is active in the NPPES registry as of the last update on 2008-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.