John Berdahl, M.D.
NPI 1871761577 · Ophthalmology Physician · Sioux Falls, SD
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Berdahl, M.D. is a Ophthalmology Physician provider in Sioux Falls, SD (NPI 1871761577).
Provider details
- NPI number
- 1871761577
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 7529 (SD)
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
18 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
2,425 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) |
|---|---|---|
| Measurement of Corneal Curvature and Depth of Eye92136 | 938 | $37 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 742 | $424 |
| Removal of Recurring Cataract in Lens Capsule Using a Laser66821 | 245 | $415 |
| Extracapsular Removal of Cataract With Insertion of Artificial Lens and Insertion of Drainage Device in Front Chamber of Eye66991 | 159 | $529 |
| Transplantation of Outer Layer of Corneal Tissue65756 | 61 | $1,114 |
| Removal of Growth of Cornea65400 | 51 | $574 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$177,971 across 98 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
- 2008-02-15
- Last updated
- 2024-05-21
- Certified
- 2024-05-21
Frequently asked questions
- What is John Berdahl's NPI number?
- John Berdahl's National Provider Identifier (NPI) is 1871761577, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Berdahl's specialty?
- John Berdahl is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Berdahl located?
- John Berdahl's practice location on file with NPPES is 3101 W 57th St, Sioux Falls, SD 57108-3162.
- What is John Berdahl's phone number?
- The practice phone number listed in the NPPES registry for John Berdahl is (605) 361-3937.
- Does John Berdahl accept Medicare?
- John Berdahl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Berdahl's NPI active?
- Yes — John Berdahl's NPI (1871761577) is active in the NPPES registry as of the last update on 2024-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.