Stephen Gieser, M.D.
NPI 1851389787 · Ophthalmology Physician · Wheaton, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Gieser, M.D. is a Ophthalmology Physician provider in Wheaton, IL (NPI 1851389787).
Provider details
- NPI number
- 1851389787
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-086157 (IL)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
4,004 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 Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,171 | $96 |
| Imaging of Optic Nerve92133 | 631 | $38 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 585 | $135 |
| Exam of Visual Field With Extended Testing92083 | 548 | $67 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 375 | $17 |
| Photography of the Retina92250 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,741 | 525 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 615 | 170 |
| Brimonidine Tartrate | 276 | 97 |
| Timolol Maleate | 261 | 85 |
| Bimatoprostbrand: Lumigan | 257 | 69 |
| Netarsudil Mesylat/Latanoprostbrand: Rocklatan | 240 | 72 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 207 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$226 across 5 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
Additional practice locations (1)
- 3860 W Ogden AveChicago, IL 60623-2460Phone: (872) 588-3000
Registry dates
- Enumerated
- 2005-10-13
- Last updated
- 2022-10-05
- Certified
- 2022-10-05
Frequently asked questions
- What is Stephen Gieser's NPI number?
- Stephen Gieser's National Provider Identifier (NPI) is 1851389787, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Gieser's specialty?
- Stephen Gieser is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Gieser located?
- Stephen Gieser's practice location on file with NPPES is 2015 N Main St, Wheaton, IL 60187-3190.
- What is Stephen Gieser's phone number?
- The practice phone number listed in the NPPES registry for Stephen Gieser is (630) 668-8250.
- Does Stephen Gieser accept Medicare?
- Stephen Gieser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Gieser's NPI active?
- Yes — Stephen Gieser's NPI (1851389787) is active in the NPPES registry as of the last update on 2022-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.