Hassan Haji-Abdirahman, MD
NPI 1972735785 · Hospitalist Physician · Janesville, WI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hassan Haji-Abdirahman, MD is a Hospitalist Physician provider in Janesville, WI (NPI 1972735785).
Provider details
- NPI number
- 1972735785
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 65195-020 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 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
117 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 | 102 | $159 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 15 | $120 |
Typical Medicare-allowed amounts for these services range $120–$159 (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
- 2009-08-12
- Last updated
- 2020-11-18
- Certified
- 2020-11-18
Frequently asked questions
- What is Hassan Haji-Abdirahman's NPI number?
- Hassan Haji-Abdirahman's National Provider Identifier (NPI) is 1972735785, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hassan Haji-Abdirahman's specialty?
- Hassan Haji-Abdirahman is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Hassan Haji-Abdirahman located?
- Hassan Haji-Abdirahman's practice location on file with NPPES is 3400 E Racine St, Janesville, WI 53546-2344.
- What is Hassan Haji-Abdirahman's phone number?
- The practice phone number listed in the NPPES registry for Hassan Haji-Abdirahman is (608) 373-8000.
- Does Hassan Haji-Abdirahman accept Medicare?
- Hassan Haji-Abdirahman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hassan Haji-Abdirahman's NPI active?
- Yes — Hassan Haji-Abdirahman's NPI (1972735785) is active in the NPPES registry as of the last update on 2020-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.