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KEITH CHARLES KNAPP JR. M.D.
NPI 1104817329
Family Medicine in Chicago, IL

Active since November 04, 2005PECOS EnrolledAccepts Medicare Assignment
3303 S HALSTED ST, SUITE 100, CHICAGO, IL 60608(773) 890-0800(773) 890-5430 Get Directions Write a Review

NPPES record last updated: October 2, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Keith Charles Knapp Jr. M.d. NPPES

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

KEITH CHARLES KNAPP JR. M.D. (NPI 1104817329) is an individual family medicine provider in Chicago, Illinois, licensed in Illinois (036-062820) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (1980).

NPPES Registry Identity

NPI1104817329
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameKEITH CHARLES KNAPP JR.Credential: M.D.
Location Address3303 S HALSTED ST, SUITE 100Chicago, IL 60608-6705
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900
Phone(773) 890-0800
Fax(773) 890-5430
Sole ProprietorNo
Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 1980
Enumeration DateNovember 4, 2005
Last NPPES UpdateOctober 2, 2025
NPPES CertifiedOctober 2, 2025
✔ NPI 1104817329 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in IL · 036-062820
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
3303 S HALSTED ST, Chicago, IL 60608
Open in Google Maps ↗

Other Identifiers 1

Other036-062820IL · License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.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

Keith Charles Knapp Jr. 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 ID7315091857
PECOS Enrollment IDI20090818000192
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 10

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.

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.
488 services156 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
354 services155 patients
Blood glucose (sugar) test performed by hand-held instrument 82962
A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.
159 services61 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
132 services65 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
129 services129 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
61 services60 patients

Hospital Affiliations CMS Care Compare 2

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

Advocate Illinois Masonic Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140182
Location836 West Wellington AvenueChicago, IL 60657 · Cook County
Emergency services Birthing friendly

Advocate Christ Hospital & Medical Center

Acute Care Hospitals · Oak Lawn, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140208
Location4440 W 95th StreetOak Lawn, IL 60453 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60608 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
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.

Referred Medical Equipment & Supplies CMS DME claims 5

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
17 suppliers67 claims178 services$5.28 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
11 suppliers34 claims45 services$0.90 avg. paid by Medicare
Intermittent urinary catheter, with insertion supplies A4353
DME-Orthotic Devices · category DF008N
1 supplier11 claims1,730 services$6.75 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
1 supplier11 claims11 services$9.88 avg. paid by Medicare
Elevating leg rests, pair (for use with capped rental wheelchair base) K0195
DME-Wheelchairs · category DD021N
1 supplier11 claims11 services$4.32 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 13

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

STEVEN E ARNSTEIN, D.D.S., P.C.
Dentist
3303 S HALSTED ST, SUITE 207
CHICAGO, IL 60608
Cook County (773) 247-8606
DR. RYAN JOSEPH KNAPP PHARMD
Pharmacist
3303 S HALSTED ST
CHICAGO, IL 60608
Cook County (773) 254-5221
MRS. JENNIFFEL RAMIREZ M.A.
Counselor (Professional)
3303 S HALSTED ST, SUITE 1
CHICAGO, IL 60608
Cook County (773) 733-1921
DR. STEVEN EDWARD ARNSTEIN D.D.S.
Dentist (General Practice)
3303 S HALSTED ST, SUITE 207
CHICAGO, IL 60608
Cook County (773) 247-8606
PAMELA MITCHELL FRANKLIN MD
Internal Medicine
3303 S HALSTED ST, STE 207
CHICAGO, IL 60608
Cook County (773) 633-2543
KNAPP MEDICAL CENTER, LTD.
Family Medicine
3303 S HALSTED ST, SUITE 100
CHICAGO, IL 60608
Cook County (773) 890-0800
BRIAN CHIARAMONTE FOOT AND ANKLE CENTER OF BRIDGEPORT
Podiatrist
3303 S HALSTED ST
CHICAGO, IL 60608
Cook County (773) 579-1440
MATTHEW WU DO
Family Medicine
3303 S HALSTED ST
CHICAGO, IL 60608
Cook County (773) 890-0800

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 Keith Knapp's NPI number?

The NPI number for Keith Knapp is 1104817329. It was assigned to this individual provider in the NPPES registry on November 4, 2005.

Where is Keith Knapp located?

Keith Knapp practices at 3303 S Halsted St Suite 100, Chicago, IL 60608. The listed phone number is (773) 890-0800.

What is Keith Knapp's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Keith Knapp enrolled in Medicare?

Yes. Keith Knapp 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 Keith Knapp accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Keith Knapp 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 Keith Knapp affiliated with any hospitals?

According to CMS data, Keith Knapp is affiliated with Advocate Illinois Masonic Medical Center and Advocate Christ Hospital & Medical Center.

When was this NPI record last updated?

The NPPES record for Keith Knapp was last updated on October 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.