Michael Sumsion, MD
NPI 1699725507 · Ophthalmology Physician · Redding, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Sumsion, MD is a Ophthalmology Physician provider in Redding, CA (NPI 1699725507).
Provider details
- NPI number
- 1699725507
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- G68804 (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
20 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
17,760 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 | 3,474 | $42 |
| Analysis of Substance Using Immunoassay Technique, Multiple Step Method83516 | 2,103 | $11 |
| Microfluid Analysis of Tears83861 | 2,076 | $22 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,993 | $135 |
| Injection of Drug Into Eye67028 | 1,762 | $120 |
| Established Patient Complete Exam of Visual System92014 | 1,148 | $135 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Timolol Maleate | 218 | 71 |
| Latanoprost | 210 | 59 |
| Bimatoprostbrand: Lumigan | 196 | 55 |
| Prednisolone Acetate | 141 | 79 |
| Ofloxacin | 97 | 67 |
| Ketorolac Tromethamine | 95 | 63 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 69 | 16 |
| Brimonidine Tartrate/Timolol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$790 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
- 2006-05-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Sumsion's NPI number?
- Michael Sumsion's National Provider Identifier (NPI) is 1699725507, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Sumsion's specialty?
- Michael Sumsion is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Sumsion located?
- Michael Sumsion's practice location on file with NPPES is 2801 Park Marina Dr, Redding, CA 96001-2822.
- What is Michael Sumsion's phone number?
- The practice phone number listed in the NPPES registry for Michael Sumsion is (530) 244-2273.
- Does Michael Sumsion accept Medicare?
- Michael Sumsion is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Sumsion's NPI active?
- Yes — Michael Sumsion's NPI (1699725507) 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.