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DR. OBI ALEXANDER OB-NWANKWO M.D
NPI 1184917221
Internal Medicine in Saginaw, MI

Active since May 24, 2011PECOS EnrolledAccepts Medicare Assignment
1447 N HARRISON ST, SAGINAW, MI 48602(989) 583-7000 Get Directions Write a Review

NPPES record last updated: October 17, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Obi Alexander Ob-nwankwo M.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. OBI ALEXANDER OB-NWANKWO M.D (NPI 1184917221) is an individual internal medicine provider in Saginaw, Michigan, licensed in Michigan (4301508795) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS, is affiliated with Covenant Medical Center, and is a graduate of Other (2005).

NPPES Registry Identity

NPI1184917221
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. OBI ALEXANDER OB-NWANKWOCredential: M.D
Location Address1447 N HARRISON STSaginaw, MI 48602-4727
Mailing Address35920 Hanamar DrAvon, OH 44011-3900 · (216) 952-3366
Phone(989) 583-7000
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateMay 24, 2011
Last NPPES UpdateOctober 17, 2025
NPPES CertifiedOctober 17, 2025
✔ NPI 1184917221 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MI · 4301508795
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1447 N HARRISON ST, Saginaw, MI 48602
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Obi Alexander Ob-nwankwo M.d is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1850521519
PECOS Enrollment IDI20140226000781, I20250108001175
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
195 services75 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
31 services31 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
29 services29 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Covenant Medical Center

Acute Care Hospitals · Saginaw, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230070
Location1447 N HarrisonSaginaw, MI 48602 · Saginaw County
Emergency services Birthing friendly

Upmc Northwest

Acute Care Hospitals · Seneca, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number390091
Location100 Fairfield DriveSeneca, PA 16346 · Venango County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48602 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.15 typical visit price
range $54.34 – $166.68
Typical copayment $31.53 (range $13.58 – $41.67)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers13 claims13 services$98.17 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BRITTANY LYNN LEWIS OTR/L
Occupational Therapist
1447 N HARRISON ST
SAGINAW, MI 48602
Saginaw County (989) 583-4070
HALLIE MARIE LAFONTAINE
Behavior Technician
1447 N HARRISON ST
SAGINAW, MI 48602
Saginaw County (989) 671-5738
THERESA L JONES CRNA
Nurse Anesthetist, Certified Registered
1447 N HARRISON ST
SAGINAW, MI 48602
Saginaw County (989) 583-0000
LINDA SPRADLIN MPT, CLT
Physical Therapist
1447 N HARRISON ST
SAGINAW, MI 48602
Saginaw County (989) 583-5140
DANA FONTAINE D.O
Family Medicine
1447 N HARRISON ST
SAGINAW, MI 48602
Saginaw County (989) 837-2647
DR. SCOTT MARSHALL PLACEWAY D.O.
Anesthesiology
1447 N HARRISON ST
SAGINAW, MI 48602
Saginaw County (989) 583-4511
JENNA LYNN CAMPBELL RN
Registered Nurse (Critical Care Medicine)
1447 N HARRISON ST
SAGINAW, MI 48602
Saginaw County (989) 583-4850
SPENCER DAVID WILLIAMS
Student in an Organized Health Care Education/Training Program
1447 N HARRISON ST
SAGINAW, MI 48602
Saginaw County (989) 583-0000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Obi Ob-nwankwo's NPI number?

The NPI number for Obi Ob-nwankwo is 1184917221. It was assigned to this individual provider in the NPPES registry on May 24, 2011.

Where is Obi Ob-nwankwo located?

Obi Ob-nwankwo practices at 1447 N Harrison St, Saginaw, MI 48602. The listed phone number is (989) 583-7000.

What is Obi Ob-nwankwo's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Obi Ob-nwankwo enrolled in Medicare?

Yes. Obi Ob-nwankwo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Obi Ob-nwankwo accept?

Health plans from CareSource list Obi Ob-nwankwo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Obi Ob-nwankwo affiliated with any hospitals?

According to CMS data, Obi Ob-nwankwo is affiliated with Covenant Medical Center and Upmc Northwest.

When was this NPI record last updated?

The NPPES record for Obi Ob-nwankwo was last updated on October 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.