Doctor profile · Federal record

Dr. Guido Grasso-Knight, M.D.

Family Medicine Physician (CMS: Family Practice) · Family Medicine Physician · Family Medicine Physician · Student in an Organized Health Care Education/Training Program · Carol Stream, IL

  • NPI 1164644266
  • Accepts Medicare
  • 19 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
630 E North Ave
Carol Stream, IL 601882127
(630) 458-5300
Additional location
3231 Euclid Ave, MacNeal Family Medicine Residency
Berwyn, IL 604023466
(708) 783-2000
fax (708) 783-3656
Mailing address
3231 Euclid Ave, Macneal Family Medicine Residency
Berwyn, IL 604023466

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
March 17, 2021
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State licenses (3)
Illinois #036-133136 · New York #254524 · Maryland #D71983

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1164644266. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
349
Distinct HCPCS
8
Medicare allowed
$37,730
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 158 79 $133
99213 Established patient office or other outpatient visit, 20-29 minutes 67 56 $94
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 45 45 $133
G0008 Administration of influenza virus vaccine 22 21 $32
83036 Hemoglobin a1c level 17 14 $10
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 15 15 $76
71046 X-ray of chest, 2 views 13 12 $25
99204 New patient office or other outpatient visit, 45-59 minutes 12 12 $175

In context: peer comparison

Among 2 peers in Carol Stream Family Medicine Physician, average services per provider: 46. This provider delivers 7.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$68
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Dexcom, INC. 1 $28.26
Agile Therapeutics, INC. 1 $24.72
AstraZeneca Pharmaceuticals Lp 1 $15.15

By nature of payment

Food and Beverage
$68

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,111
Patients
327
Total drug cost
$15,832
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 305 96 $4,372
Amlodipine Besylate Generic 116 37 $1,177
Metformin Hcl Generic 96 29 $636
Lisinopril Generic 89 27 $579
Levothyroxine Sodium Generic 83 24 $1,517
Losartan Potassium Generic 62 19 $782
Metoprolol Succinate Generic 57 20 $1,078
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 55 26 $1,700
Hydrochlorothiazide Generic 42 14 $181
Rosuvastatin Calcium Generic 42 12 $541

Frequently asked questions

Auto-generated from federal data
What is Dr. Guido Grasso-Knight's medical specialty?
Dr. Guido Grasso-Knight practices Family Medicine Physician in Carol Stream, IL.
Where does Dr. Guido Grasso-Knight practice?
Dr. Guido Grasso-Knight practices at 630 E North Ave, Carol Stream, IL 601882127. Office phone: 6304585300.
What is Dr. Guido Grasso-Knight's NPI?
Dr. Guido Grasso-Knight's National Provider Identifier (NPI) is 1164644266, issued by NPPES.
Does Dr. Guido Grasso-Knight accept Medicare assignment?
Yes. Dr. Guido Grasso-Knight accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Guido Grasso-Knight commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.