Steven Andersen, M.D.
NPI 1598781403 · Ophthalmology Physician · Fremont, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Andersen, M.D. is a Ophthalmology Physician provider in Fremont, CA (NPI 1598781403).
Provider details
- NPI number
- 1598781403
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G076308 (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
19 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
2,327 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) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 821 | $159 |
| Established Patient Problem Focused Exam of Visual System92012 | 606 | $113 |
| Imaging of Optic Nerve92133 | 244 | $42 |
| Exam of Visual Field With Extended Testing92083 | 242 | $82 |
| New Patient Complete Exam of Visual System92004 | 170 | $186 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 117 | $652 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 639 | 190 |
| Timolol Maleate | 229 | 83 |
| Prednisolone Acetate | 172 | 135 |
| Brimonidine Tartrate | 170 | 60 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 128 | 38 |
| Ketorolac Tromethamine | 122 | 84 |
| Ofloxacin | 101 | 89 |
| Dorzolamide Hcl | 86 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (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
- 2006-07-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is Steven Andersen's NPI number?
- Steven Andersen's National Provider Identifier (NPI) is 1598781403, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Andersen's specialty?
- Steven Andersen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Andersen located?
- Steven Andersen's practice location on file with NPPES is 38707 Stivers St, Fremont, CA 94536-5337.
- What is Steven Andersen's phone number?
- The practice phone number listed in the NPPES registry for Steven Andersen is (510) 794-0660.
- Does Steven Andersen accept Medicare?
- Steven Andersen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Andersen's NPI active?
- Yes — Steven Andersen's NPI (1598781403) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.