Sean Sumsion, M.D.
NPI 1538504469 · Ophthalmology Physician · Redding, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Sumsion, M.D. is a Ophthalmology Physician provider in Redding, CA (NPI 1538504469).
Provider details
- NPI number
- 1538504469
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- Q9748 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 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
11,959 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) |
|---|---|---|
| Imaging of Retina92134 | 2,109 | $43 |
| Injection of Drug Into Eye67028 | 1,333 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,175 | $96 |
| Analysis of Substance Using Immunoassay Technique, Multiple Step Method83516 | 1,157 | $11 |
| Microfluid Analysis of Tears83861 | 1,129 | $22 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 953 | $134 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 149 | 97 |
| Bimatoprostbrand: Lumigan | 98 | 33 |
| Ofloxacin | 68 | 50 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 68 | 25 |
| Timolol Maleate | 67 | 24 |
| Latanoprost | 65 | 28 |
| Perfluorohexyloctane/Pfbrand: Miebo | 51 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$884 across 33 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
- 2013-05-06
- Last updated
- 2021-08-25
- Certified
- 2021-08-25
Frequently asked questions
- What is Sean Sumsion's NPI number?
- Sean Sumsion's National Provider Identifier (NPI) is 1538504469, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Sumsion's specialty?
- Sean Sumsion is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Sean Sumsion located?
- Sean Sumsion's practice location on file with NPPES is 2801 Park Marina Dr, Redding, CA 96001-2822.
- What is Sean Sumsion's phone number?
- The practice phone number listed in the NPPES registry for Sean Sumsion is (530) 244-2273.
- Does Sean Sumsion accept Medicare?
- Sean Sumsion is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Sumsion's NPI active?
- Yes — Sean Sumsion's NPI (1538504469) is active in the NPPES registry as of the last update on 2021-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.