John Dahlin, MD
NPI 1427194828 · Nuclear Medicine Physician · Marshfield, WI
Provider details
- NPI number
- 1427194828
- Entity type
- Individual
- Primary specialty
- Nuclear Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2007-00034 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
3,312 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) |
|---|---|---|
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 1,181 | $9 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 1,028 | $12 |
| Nuclear Medicine Study From Skull Base to Mid-Thigh With Ct Scan78815 | 410 | $106 |
| Nuclear Medicine Study Whole Body With Ct Scan78816 | 208 | $107 |
| Dxa Bone Density Measurement of Forearm, Finger, Hand, Or Foot77081 | 163 | $11 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 | 134 | $71 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$52 across 2 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
- 2007-01-30
- Last updated
- 2023-07-26
- Certified
- 2023-07-26
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.