Halden Nielsen, DO
NPI 1598343741 · Family Medicine Physician · Austin, MN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Halden Nielsen, DO is a Family Medicine Physician provider in Austin, MN (NPI 1598343741).
Provider details
- NPI number
- 1598343741
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 72131 (MN)
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
5 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
89 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 | 48 | $101 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 27 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 14 | $71 |
Typical Medicare-allowed amounts for these services range $16–$101 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 84 | 33 |
| Atorvastatin Calcium | 65 | 26 |
| Lisinopril | 62 | 25 |
| Metoprolol Succinate | 50 | 18 |
| Gabapentin | 45 | 14 |
| Rosuvastatin Calcium | 42 | 23 |
| Levothyroxine Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19 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
Additional practice locations (1)
- 200 1st St SwRochester, MN 55905-0001Phone: (507) 284-2511
Registry dates
- Enumerated
- 2021-03-30
- Last updated
- 2024-07-19
- Certified
- 2024-07-19
Frequently asked questions
- What is Halden Nielsen's NPI number?
- Halden Nielsen's National Provider Identifier (NPI) is 1598343741, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Halden Nielsen's specialty?
- Halden Nielsen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Halden Nielsen located?
- Halden Nielsen's practice location on file with NPPES is 1000 1st Dr Nw, Austin, MN 55912-2941.
- What is Halden Nielsen's phone number?
- The practice phone number listed in the NPPES registry for Halden Nielsen is (507) 433-7351.
- Does Halden Nielsen accept Medicare?
- Halden Nielsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Halden Nielsen's NPI active?
- Yes — Halden Nielsen's NPI (1598343741) is active in the NPPES registry as of the last update on 2024-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.