Susan Longar, M.D.
NPI 1578506960 · Ophthalmology Physician · Daly City, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susan Longar, M.D. is a Ophthalmology Physician provider in Daly City, CA (NPI 1578506960).
Provider details
- NPI number
- 1578506960
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G751390 (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
3,823 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) |
|---|---|---|
| Photography of the Retina92250 | 1,066 | $46 |
| Established Patient Complete Exam of Visual System92014 | 548 | $158 |
| Imaging of Retina92134 | 479 | $50 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 320 | $154 |
| Imaging of Optic Nerve92133 | 296 | $43 |
| Exam of Visual Field With Extended Testing92083 | 227 | $82 |
| Ultrasound Scan of Cornea to Determine Thickness |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,115 | 290 |
| Moxifloxacin Hclbrand: Moxifloxacin | 276 | 173 |
| Prednisolone Acetate | 248 | 181 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 170 | 43 |
| Bimatoprostbrand: Lumigan | 113 | 26 |
| Azelastine Hcl | 109 | 54 |
| Timolol Maleate | 103 | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$451 across 18 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
- 2006-06-13
- Last updated
- 2008-02-08
Frequently asked questions
- What is Susan Longar's NPI number?
- Susan Longar's National Provider Identifier (NPI) is 1578506960, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Longar's specialty?
- Susan Longar is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Susan Longar located?
- Susan Longar's practice location on file with NPPES is 1850 Sullivan Ave, Daly City, CA 94015-2221.
- What is Susan Longar's phone number?
- The practice phone number listed in the NPPES registry for Susan Longar is (650) 992-9221.
- Does Susan Longar accept Medicare?
- Susan Longar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susan Longar's NPI active?
- Yes — Susan Longar's NPI (1578506960) is active in the NPPES registry as of the last update on 2008-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.