Michael Mullin, D.O.
NPI 1891136743 · Diagnostic Radiology Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Mullin, D.O. is a Diagnostic Radiology Physician provider in Milwaukee, WI (NPI 1891136743).
Provider details
- NPI number
- 1891136743
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 63166 (WI)
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
12 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
705 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) |
|---|---|---|
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 96 | $11 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 73 | $34 |
| Ultrasound Study of Arm and Leg Arteries93922 | 69 | $10 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 59 | $12 |
| Fluoroscopic Guidance for Insertion Or Removal of Central Vein Access Device77001 | 48 | $16 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 32 | $137 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$120 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)
- 2900 W Oklahoma AveMilwaukee, WI 53215-4330Phone: (414) 773-4312
Registry dates
- Enumerated
- 2013-07-08
- Last updated
- 2025-05-27
- Certified
- 2025-05-27
Frequently asked questions
- What is Michael Mullin's NPI number?
- Michael Mullin's National Provider Identifier (NPI) is 1891136743, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Mullin's specialty?
- Michael Mullin is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Mullin located?
- Michael Mullin's practice location on file with NPPES is 945 N 12th St, Milwaukee, WI 53233-1305.
- What is Michael Mullin's phone number?
- The practice phone number listed in the NPPES registry for Michael Mullin is (414) 219-2000.
- Does Michael Mullin accept Medicare?
- Michael Mullin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Mullin's NPI active?
- Yes — Michael Mullin's NPI (1891136743) is active in the NPPES registry as of the last update on 2025-05-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.