Yan Guo
NPI 1184816696 · Ophthalmology Physician · Marshfield, WI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yan Guo is a Ophthalmology Physician provider in Marshfield, WI (NPI 1184816696).
Provider details
- NPI number
- 1184816696
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 20007 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 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
4,112 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 | 1,184 | $123 |
| Imaging of Optic Nerve92133 | 597 | $35 |
| Photography of the Retina92250 | 412 | $33 |
| Exam of Visual Field With Extended Testing92083 | 405 | $61 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 336 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 174 | $89 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,084 | 282 |
| Brimonidine Tartrate | 457 | 123 |
| Timolol Maleate | 337 | 99 |
| Prednisolone Acetate | 335 | 208 |
| Dorzolamide Hcl | 224 | 64 |
| Ofloxacin | 223 | 145 |
| Ketorolac Tromethamine | 209 | 138 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 189 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$385 across 14 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)
- 420 Delaware St S.e.Ophthalmology,mmc 493,Minneapolis, MN 55455-0501Phone: (612) 625-4400
Registry dates
- Enumerated
- 2007-08-17
- Last updated
- 2018-06-16
Frequently asked questions
- What is Yan Guo's NPI number?
- Yan Guo's National Provider Identifier (NPI) is 1184816696, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yan Guo's specialty?
- Yan Guo is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Yan Guo located?
- Yan Guo's practice location on file with NPPES is 1000 N Oak Ave, Marshfield, WI 54449-5703.
- What is Yan Guo's phone number?
- The practice phone number listed in the NPPES registry for Yan Guo is (919) 637-4712.
- Does Yan Guo accept Medicare?
- Yan Guo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yan Guo's NPI active?
- Yes — Yan Guo's NPI (1184816696) is active in the NPPES registry as of the last update on 2018-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.