What is Andrea Obi's NPI number?

Andrea Obi's National Provider Identifier (NPI) is 1851554570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Andrea Obi's specialty?

Andrea Obi is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).

Where is Andrea Obi located?

Andrea Obi's practice location on file with NPPES is 1500 East Medical Center, Ann Arbor, MI 48109-5329.

What is Andrea Obi's phone number?

The practice phone number listed in the NPPES registry for Andrea Obi is (734) 936-4000.

Does Andrea Obi accept Medicare?

Andrea Obi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Andrea Obi's NPI active?

Yes — Andrea Obi's NPI (1851554570) is active in the NPPES registry as of the last update on 2021-04-19.

IndividualActiveAccepts Medicare

Andrea Obi, MD

NPI 1851554570 · Vascular Surgery Physician · Ann Arbor, MI

Andrea Obi, MD is a Vascular Surgery Physician provider in Ann Arbor, MI (NPI 1851554570).

Provider details

NPI number: 1851554570
Entity type: Individual
Primary specialty: Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: 4301092174 (MI)

Practice location

1500 East Medical Center

Ann Arbor, MI 48109-5329

Phone: (734) 936-4000

Street-level locationGet directions

More MI providers

Mailing address

3621 S State St

Ann Arbor, MI 48108-1633

Specialties & taxonomies

Vascular Surgery PhysicianPrimary2086S0129XLicense 4301092174 (MI)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Vascular Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(78/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
18 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
971 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 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)
Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970	414	$33
Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971	130	$21
Ultrasound of Both Sides of Head and Neck Blood Flow93880	119	$38
Complete Ultrasound Study of Arm and Leg Arteries93923	97	$22
Ultrasound Study of Arm and Leg Arteries93922	51	$12
Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970	26	$31

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.

Drug	Part D claims (2024)
Warfarin Sodium	16
Rivaroxabanbrand: Xarelto	16

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$645 across 3 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.

Enumerated: 2008-07-02
Last updated: 2021-04-19
Certified: 2021-04-19

Frequently asked questions

What is Andrea Obi's NPI number?: Andrea Obi's National Provider Identifier (NPI) is 1851554570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Andrea Obi's specialty?: Andrea Obi is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
Where is Andrea Obi located?: Andrea Obi's practice location on file with NPPES is 1500 East Medical Center, Ann Arbor, MI 48109-5329.
What is Andrea Obi's phone number?: The practice phone number listed in the NPPES registry for Andrea Obi is (734) 936-4000.
Does Andrea Obi accept Medicare?: Andrea Obi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Andrea Obi's NPI active?: Yes — Andrea Obi's NPI (1851554570) is active in the NPPES registry as of the last update on 2021-04-19.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

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 Arm Or Leg Veins With Compression and Maneuvers93970	414	$33
Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971	130	$21
Ultrasound of Both Sides of Head and Neck Blood Flow93880	119	$38
Complete Ultrasound Study of Arm and Leg Arteries93923	97	$22
Ultrasound Study of Arm and Leg Arteries93922	51	$12
Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970	26	$31

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.

Drug	Part D claims (2024)
Warfarin Sodium	16
Rivaroxabanbrand: Xarelto	16

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$645 across 3 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments