Christopher Audu, M.D., PH.D.
NPI 1457715302 · Vascular Surgery Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Vascular Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Audu, M.D., PH.D. is a Vascular Surgery Physician provider in Ann Arbor, MI (NPI 1457715302).
Provider details
- NPI number
- 1457715302
- Entity type
- Individual
- Primary specialty
- Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301112381 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 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
156 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) |
|---|---|---|
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971 | 51 | $20 |
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 33 | $31 |
| Complete Ultrasound Study of Arm and Leg Arteries93923 | 22 | $21 |
| Ultrasound of One Leg Arteries Or Artery Grafts93926 | 19 | $22 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 18 | $36 |
| Ultrasound of Hemodialysis Access93990 | 13 | $22 |
Typical Medicare-allowed amounts for these services range $20–$36 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,397 across 15 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
- 2016-04-07
- Last updated
- 2025-03-06
- Certified
- 2025-03-06
Frequently asked questions
- What is Christopher Audu's NPI number?
- Christopher Audu's National Provider Identifier (NPI) is 1457715302, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Audu's specialty?
- Christopher Audu is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Audu located?
- Christopher Audu's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5000.
- What is Christopher Audu's phone number?
- The practice phone number listed in the NPPES registry for Christopher Audu is (734) 936-5850.
- Does Christopher Audu accept Medicare?
- Christopher Audu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Audu's NPI active?
- Yes — Christopher Audu's NPI (1457715302) is active in the NPPES registry as of the last update on 2025-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.