John Mitchell, M.D.
NPI 1851310254 · Ophthalmology Physician · Marshfield, WI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Mitchell, M.D. is a Ophthalmology Physician provider in Marshfield, WI (NPI 1851310254).
Provider details
- NPI number
- 1851310254
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 73876 (WI)
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
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
367 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 90 | $90 |
| Imaging of Retina92134 | 64 | $23 |
| Exam of Visual Field With Extended Testing92083 | 62 | $25 |
| Imaging of Optic Nerve92133 | 54 | $20 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 46 | $134 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 21 | $123 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 259 | 62 |
| Timolol Maleate | 89 | 29 |
| Brimonidine Tartrate | 80 | 21 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 60 | 20 |
| Dorzolamide Hcl | 26 | — |
| Erythromycin Basebrand: Erythromycin | 22 | 12 |
| Travoprost | 22 | — |
| Prednisolone Acetate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$75 across 1 record (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
- 2006-07-18
- Last updated
- 2023-12-18
- Certified
- 2023-12-18
Frequently asked questions
- What is John Mitchell's NPI number?
- John Mitchell's National Provider Identifier (NPI) is 1851310254, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mitchell's specialty?
- John Mitchell is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Mitchell located?
- John Mitchell's practice location on file with NPPES is 1000 N Oak Ave, Marshfield, WI 54449-5703.
- What is John Mitchell's phone number?
- The practice phone number listed in the NPPES registry for John Mitchell is (715) 387-5511.
- Does John Mitchell accept Medicare?
- John Mitchell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Mitchell's NPI active?
- Yes — John Mitchell's NPI (1851310254) is active in the NPPES registry as of the last update on 2023-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.