Andrew Iwach, MD
NPI 1871682088 · Ophthalmology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Iwach, MD is a Ophthalmology Physician provider in San Francisco, CA (NPI 1871682088).
Provider details
- NPI number
- 1871682088
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G56142 (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
5,338 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 Problem Focused Exam of Visual System92012 | 1,493 | $113 |
| Imaging of Optic Nerve92133 | 1,238 | $44 |
| Exam of Visual Field With Extended Testing92083 | 1,081 | $82 |
| Established Patient Complete Exam of Visual System92014 | 742 | $158 |
| Exam of the Internal Drainage System of Eye92020 | 290 | $34 |
| New Patient Complete Exam of Visual System92004 | 123 | $185 |
| Ultrasound Scan of Cornea to Determine Thickness |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,469 | 343 |
| Timolol Maleate | 755 | 203 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 734 | 175 |
| Brimonidine Tartrate | 572 | 132 |
| Latanoprostene Bunodbrand: Vyzulta | 426 | 94 |
| Prednisolone Acetate | 250 | 133 |
| Bimatoprostbrand: Lumigan | 249 | 50 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,061 across 25 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
- 2006-10-12
- Last updated
- 2008-04-15
Frequently asked questions
- What is Andrew Iwach's NPI number?
- Andrew Iwach's National Provider Identifier (NPI) is 1871682088, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Iwach's specialty?
- Andrew Iwach is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Iwach located?
- Andrew Iwach's practice location on file with NPPES is 55 Stevenson St, San Francisco, CA 94105-2936.
- What is Andrew Iwach's phone number?
- The practice phone number listed in the NPPES registry for Andrew Iwach is (415) 981-2020.
- Does Andrew Iwach accept Medicare?
- Andrew Iwach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Iwach's NPI active?
- Yes — Andrew Iwach's NPI (1871682088) is active in the NPPES registry as of the last update on 2008-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.