ALI AZIZ M.D.
NPI 1750767786
Internal Medicine in Waterloo, IA

Q: What is Ali Aziz's NPI number?

The NPI number for Ali Aziz is 1750767786. It was assigned to this individual provider in the NPPES registry on July 31, 2015.

Q: What is Ali Aziz's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Ali Aziz was last updated on June 25, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.

Active since July 31, 2015PECOS EnrolledAccepts Medicare Assignment

3421 W 9TH ST, WATERLOO, IA 50702(319) 272-8349(319) 272-8355 Get Directions Write a Review

NPPES record last updated: June 25, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Ali Aziz M.d. NPPES

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

ALI AZIZ M.D. (NPI 1750767786) is an individual internal medicine provider in Waterloo, Iowa, licensed in Iowa (MD-44611) and active in the NPI registry since July 2015. He is enrolled in Medicare PECOS, is affiliated with St Lukes Regional Medical Center, and maintains a secondary practice location in Livingston.

NPPES Registry Identity

NPI1750767786

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameALI AZIZCredential: M.D.

Location Address3421 W 9TH STWaterloo, IA 50702

Mailing Address3421 W 9th StWaterloo, IA 50702-5401 · (319) 272-8349 · Fax (319) 272-8355

Phone(319) 272-8349

Fax(319) 272-8355

Sole ProprietorYes

Medical School CMSOtherGraduated 2012

Enumeration DateJuly 31, 2015

Last NPPES UpdateJune 25, 2018

✔ NPI 1750767786 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in IA · MD-44611

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.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

3421 W 9TH ST, Waterloo, IA 50702

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Secondary Practice Location 1

Location 194 Old Short Hills RdLivingston, NJ 07039-5672 · Phone (973) 322-5000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Avera Health Plans, Wellmark Health Plan of Iowa, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ali Aziz 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 ID1355690710

PECOS Enrollment IDI20180817000303, I20260129000831

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.

Medicare Billing Reassignments

Medicare enrollment records show Ali Aziz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Siouxland Hospitalists PLLC

207 mi

Internal Medicine

2720 STONE PARK BLVD STE 335
Sioux City, IA 51104

Reassigned Medicare billing, Iowa enrollment
30 clinicians in this Medicare group

NPI 1831598614 (605) 937-5537

Ies Hsp Missouri LLC

396 mi

Hospitalist

1100 N KENTUCKY AVE
West Plains, MO 65775

Reassigned Medicare billing, Missouri enrollment
66 clinicians in this Medicare group

NPI 1962102871 (417) 256-9111

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

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 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

446 services173 patients

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.

283 services138 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.

176 services165 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.

126 services121 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

24 services24 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

16 services15 patients

Hospital Affiliations CMS Care Compare 2

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

St Lukes Regional Medical Center

Acute Care Hospitals · Sioux City, IA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number160146

Location2720 Stone Park BoulevardSioux City, IA 51104 · Woodbury County

Emergency services Birthing friendly

Ozarks Healthcare

Acute Care Hospitals · West Plains, MO

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260078

Location1100 Kentucky AveWest Plains, MO 65775 · Howell County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50702 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

$122.23 typical visit price

range $52.96 – $161.40

Typical copayment $30.55 (range $13.24 – $40.35)

Most-billed visit code 99204

Established Patient

$94.05 typical visit price

range $16.91 – $131.98

Typical copayment $23.51 (range $4.22 – $32.99)

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.

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.

PAUL FRANKE M.D.

Internal Medicine

3421 W 9TH ST
WATERLOO, IA 50702

Black Hawk County (319) 272-5655

DR. MICHELLE NICOLE KOMPARE MD

Pediatrics (Neonatal-Perinatal Medicine)

3421 W 9TH ST
WATERLOO, IA 50702

Black Hawk County (319) 272-8000

MARCIA A RELLIHAN D.O.

Nurse Practitioner (Obstetrics & Gynecology)

3421 W 9TH ST, SUITE G4500
WATERLOO, IA 50702

Black Hawk County (319) 233-8865

KRISTA RAE MILLER CNM

Advanced Practice Midwife

3421 W 9TH ST
WATERLOO, IA 50702

Black Hawk County (319) 272-8000

MARY A STEFFENSMEIER

Dietitian, Registered (Nutrition, Sports Dietetics)

3421 W 9TH ST
WATERLOO, IA 50702

Black Hawk County (319) 272-5859

KEVIN J DIRKSEN ARNP

Nurse Practitioner (Acute Care)

3421 W 9TH ST
WATERLOO, IA 50702

Black Hawk County (757) 561-4487

DR. RACHELLE ALEXANDRA MAKINDE MD

Anesthesiology

3421 W 9TH ST
WATERLOO, IA 50702

Black Hawk County (319) 272-5000

LEVI EDWARD ANDREWS DPM

Podiatrist

3421 W 9TH ST
WATERLOO, IA 50702

Black Hawk County (319) 272-2112

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 Ali Aziz's NPI number?

The NPI number for Ali Aziz is 1750767786. It was assigned to this individual provider in the NPPES registry on July 31, 2015.

Where is Ali Aziz located?

Ali Aziz practices at 3421 W 9th St, Waterloo, IA 50702. The listed phone number is (319) 272-8349.

What is Ali Aziz's specialty?

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

Is Ali Aziz enrolled in Medicare?

Yes. Ali Aziz 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.

Which organizations bill Medicare for Ali Aziz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ali Aziz reassigns Medicare benefits to 2 organizations: Siouxland Hospitalists PLLC (Sioux City, IA) and Ies Hsp Missouri LLC (West Plains, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ali Aziz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ali Aziz accept?

Health plans from Avera Health Plans and Wellmark Health Plan of Iowa, Inc. list Ali Aziz 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 Ali Aziz affiliated with any hospitals?

According to CMS data, Ali Aziz is affiliated with St Lukes Regional Medical Center and Ozarks Healthcare.

When was this NPI record last updated?

The NPPES record for Ali Aziz was last updated on June 25, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.