Kuo Hau Chang, D.O.
NPI 1124077425 · Hospitalist Physician · Duluth, MN
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kuo Hau Chang, D.O. is a Hospitalist Physician provider in Duluth, MN (NPI 1124077425).
Provider details
- NPI number
- 1124077425
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 220820 (NY)
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 tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
95 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 66 | $168 |
| Critical Care, First 30-74 Minutes99291 | 18 | $203 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 11 | $126 |
Typical Medicare-allowed amounts for these services range $126–$203 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-06
- Last updated
- 2020-12-04
- Certified
- 2020-12-04
Frequently asked questions
- What is Kuo Hau Chang's NPI number?
- Kuo Hau Chang's National Provider Identifier (NPI) is 1124077425, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kuo Hau Chang's specialty?
- Kuo Hau Chang is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Kuo Hau Chang located?
- Kuo Hau Chang's practice location on file with NPPES is 915 E 1st St, Duluth, MN 55805-2107.
- What is Kuo Hau Chang's phone number?
- The practice phone number listed in the NPPES registry for Kuo Hau Chang is (218) 249-5225.
- Does Kuo Hau Chang accept Medicare?
- Kuo Hau Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kuo Hau Chang's NPI active?
- Yes — Kuo Hau Chang's NPI (1124077425) is active in the NPPES registry as of the last update on 2020-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.