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DR. DIEGO ALFONSO VALENZUELA III MD
NPI 1609526987
Internal Medicine - Nephrology in Chicago, IL

Active since March 28, 2022PECOS Enrolled
5841 S. MARYLAND AVE., M/C 5100, CHICAGO, IL 60637(773) 702-3630(773) 753-8301 Get Directions Write a Review

NPPES record last updated: June 2, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 2, 2025, Jun 7, 2022 (2 updates tracked since 2022).

About Dr. Diego Alfonso Valenzuela Iii Md NPPES

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

DR. DIEGO ALFONSO VALENZUELA III MD (NPI 1609526987) is an individual nephrology provider in Chicago, Illinois, licensed in Illinois (036.175197) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1609526987
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDR. DIEGO ALFONSO VALENZUELA IIICredential: MD
Location Address5841 S. MARYLAND AVE., M/C 5100Chicago, IL 60637-1443
Mailing Address180 Harvester Dr Ste 110Burr Ridge, IL 60527-6686 · (773) 702-1150
Phone(773) 702-3630
Fax(773) 753-8301
Sole ProprietorYes
Enumeration DateMarch 28, 2022
Last NPPES UpdateJune 2, 20252 updates tracked since enumeration
NPPES CertifiedJune 2, 2025
✔ NPI 1609526987 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in IL · 036.175197
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X · License 1609526987 (IL)
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 036.175197 (IL)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
5841 S. MARYLAND AVE., Chicago, IL 60637
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Diego Alfonso Valenzuela Iii Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60637 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
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.

MATTHEW BONOMO MD
Emergency Medicine
5841 S. MARYLAND AVE., M/C 5068
CHICAGO, IL 60637
Cook County (773) 702-9109
LINDSAY GUGERTY DO
Student in an Organized Health Care Education/Training Program
5841 S. MARYLAND AVE., MC 2050
CHICAGO, IL 60637
Cook County (773) 702-0840
ANJALI PATEL
Student in an Organized Health Care Education/Training Program
5841 S. MARYLAND AVE., MAILCODE 4028
CHICAGO, IL 60637
Cook County (773) 702-6842
HANI SHAYYA
Internal Medicine
5841 S. MARYLAND AVE., M/C 7082
CHICAGO, IL 60637
Cook County (773) 702-6840
PARAMESH VIDYANAND KARANDIKAR MD
Student in an Organized Health Care Education/Training Program
5841 S. MARYLAND AVE., M/C 2026
CHICAGO, IL 60637
Cook County (773) 702-9662
EMILY SYMES MD
Student in an Organized Health Care Education/Training Program
5841 S. MARYLAND AVE., M/C 3083
CHICAGO, IL 60637
Cook County (773) 834-7708
ALEXANDRA POLOVNEFF MD
Plastic Surgery
5841 S. MARYLAND AVE., PLASTIC SURGERY DEPARTMENT
CHICAGO, IL 60637
Cook County (888) 824-0200
MS. JODEL LYNN POWERS FNP-BC
Nurse Practitioner (Family)
5841 S. MARYLAND AVE., RM E-500, MC 5040
CHICAGO, IL 60637
Cook County (773) 702-3554

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 Diego Valenzuela's NPI number?

The NPI number for Diego Valenzuela is 1609526987. It was assigned to this individual provider in the NPPES registry on March 28, 2022.

Where is Diego Valenzuela located?

Diego Valenzuela practices at 5841 S. Maryland Ave. M/C 5100, Chicago, IL 60637. The listed phone number is (773) 702-3630.

What is Diego Valenzuela's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Diego Valenzuela enrolled in Medicare?

Yes. Diego Valenzuela is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Diego Valenzuela was last updated on June 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.