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JOHN FRIEDEWALD MD
NPI 1508801093
Internal Medicine - Nephrology in Chicago, IL

Active since June 18, 2006PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
675 N SAINT CLAIR ST, GALTER 17-200, CHICAGO, IL 60611(312) 695-8900(312) 695-9194 Get Directions Write a Review

NPPES record last updated: July 6, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About John Friedewald Md NPPES

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

JOHN FRIEDEWALD MD (NPI 1508801093) is an individual nephrology provider in Chicago, Illinois, licensed in Illinois (036113031) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Palos Community Hospital, and is a graduate of Columbia University College Of Physicians And Surgeons (1998).

NPPES Registry Identity

NPI1508801093
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameJOHN FRIEDEWALDCredential: MD
Location Address675 N SAINT CLAIR ST, GALTER 17-200Chicago, IL 60611-5975
Mailing Address680 N Lake Shore Dr, Suite 1000Chicago, IL 60611-4546 · (312) 695-8900 · Fax (312) 695-9194
Phone(312) 695-8900
Fax(312) 695-9194
Sole ProprietorNo
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 1998
Enumeration DateJune 18, 2006
Last NPPES UpdateJuly 6, 2009
✔ NPI 1508801093 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in IL · 036113031
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.
675 N SAINT CLAIR ST, Chicago, IL 60611
Open in Google Maps ↗

Other Identifiers 3

Medicaid036113031IL
Medicare UPINH90785
Medicare PINK15669IL

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

John Friedewald Md 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 ID3072564012
PECOS Enrollment IDI20050318000137
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 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.
337 services96 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
145 services113 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.
50 services46 patients
Hemodialysis procedure with physician evaluation 90935
Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.
32 services17 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
24 services22 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.
22 services15 patients

Hospital Affiliations CMS Care Compare 4

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

Palos Community Hospital

Acute Care Hospitals · Palos Heights, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140062
Location12251 South 80th AvenuePalos Heights, IL 60463 · Cook County
Emergency services Birthing friendly

Northwestern Lake Forest Hospital

Acute Care Hospitals · Lake Forest, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140130
Location1000 N Westmoreland RoadLake Forest, IL 60045 · Lake County
Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140242
Location25 North Winfield RoadWinfield, IL 60190 · Du Page County
Emergency services Birthing friendly

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140281
Location251 E Huron StChicago, IL 60611 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60611 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.59
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 13

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

Azathioprine, oral, 50 mg J7500
Treatment-Treatment - Miscellaneous · category RX029N
6 suppliers55 claims2,460 services$1.93 avg. paid by Medicare
Cyclosporine, oral, 100 mg J7502
Treatment-Treatment - Miscellaneous · category RX029N
6 suppliers21 claims1,410 services$1.62 avg. paid by Medicare
Tacrolimus, extended release, (envarsus xr), oral, 0.25 mg J7503
Treatment-Chemotherapy · category RH002N
37 suppliers405 claims169,942 services$1.20 avg. paid by Medicare
Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
58 suppliers484 claims51,951 services$0.30 avg. paid by Medicare
Prednisone, immediate release or delayed release, oral, 1 mg J7512
Treatment-Treatment - Miscellaneous · category RX029N
7 suppliers32 claims3,975 services$0.01 avg. paid by Medicare
Cyclosporine, oral, 25 mg J7515
Treatment-Treatment - Miscellaneous · category RX029N
4 suppliers40 claims7,050 services$0.58 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.

TAYLOR MARIE HOGAN WINTERHALER AGACNP-BC
Nurse Practitioner (Acute Care)
675 N SAINT CLAIR ST
CHICAGO, IL 60611
Cook County (206) 883-7722
SHARON A ALLEN APRN
Nurse Practitioner (Adult Health)
675 N SAINT CLAIR ST, 21-100
CHICAGO, IL 60611
Cook County (312) 695-0316
HERON RODRIGUEZ MD
Surgery (Vascular Surgery)
675 N SAINT CLAIR ST, NORTHWESTERN MEMORIAL HOSPIALT GALTER 19-100
CHICAGO, IL 60611
Cook County (312) 695-2714
DR. DARREN MICHAEL BRENNER M.D.
Internal Medicine (Gastroenterology)
675 N SAINT CLAIR ST, SUITE 17-250
CHICAGO, IL 60611
Cook County (312) 695-5620
DR. ABDUL AZIZ AADAM M.D.
Internal Medicine (Gastroenterology)
675 N SAINT CLAIR ST, GASTROENTEROLOGY - SUITE 1400
CHICAGO, IL 60611
Cook County (312) 926-2000
JAN ELMAN STOUT PSYD
Psychologist (Clinical)
675 N SAINT CLAIR ST, SUITE 14-200
CHICAGO, IL 60611
Cook County (312) 695-7269
EMILY ELIZABETH HANDLEY OTD, OTR/L
Occupational Therapist
675 N SAINT CLAIR ST
CHICAGO, IL 60611
Cook County (815) 919-1791
SEEMA SINGHAL MD
Internal Medicine (Hematology)
675 N SAINT CLAIR ST, GALTER 21-100
CHICAGO, IL 60611
Cook County (312) 695-0990

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 John Friedewald's NPI number?

The NPI number for John Friedewald is 1508801093. It was assigned to this individual provider in the NPPES registry on June 18, 2006.

Where is John Friedewald located?

John Friedewald practices at 675 N Saint Clair St Galter 17-200, Chicago, IL 60611. The listed phone number is (312) 695-8900.

What is John Friedewald's specialty?

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

Is John Friedewald enrolled in Medicare?

Yes. John Friedewald 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.

Is John Friedewald affiliated with any hospitals?

According to CMS data, John Friedewald is affiliated with Palos Community Hospital, Northwestern Lake Forest Hospital, Northwestern Medicine Central Dupage Hospital and Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for John Friedewald was last updated on July 6, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.