Doctor profile · Federal record

Dr. Jacek Grela, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Lemont, IL

  • NPI 1700850625
  • Accepts Medicare
  • 34 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1011 State St, Suite 140
Lemont, IL 604394768
(630) 754-0141
Mailing address
10S570 Glenn Dr
Burr Ridge, IL 605276822

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
June 4, 2009
Year of graduation
1992 — 34 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Illinois #036098225 · Illinois #036-098225
Medicaid
IL #036098225

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1700850625. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
9,926
Distinct HCPCS
10
Medicare allowed
$378,689
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 1,299 349 $133
36415 Insertion of needle into vein for collection of blood sample 578 304 $8
82040 Albumin (protein) level 341 240 $5
82247 Bilirubin level, total 341 240 $5
82310 Calcium level, total 341 240 $5
84075 Phosphatase (enzyme) level, alkaline 341 240 $5
84155 Total protein level, blood 341 240 $4
84450 Liver enzyme (sgot), level 341 240 $5
84520 Urea nitrogen level to assess kidney function, quantitative 341 240 $4
84550 Uric acid level, blood 341 240 $4

In context: peer comparison

Among 2 peers in Lemont Internal Medicine Physician, average services per provider: 181. This provider delivers 55× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,884
Transactions
83
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 15 $399.99
Abbvie INC. 11 $318.16
Pfizer INC. 14 $204.75
Amgen INC. 5 $199.43
Lilly USA, LLC 7 $138.22
GlaxoSmithKline, LLC. 6 $112.98
Novo Nordisk INC 6 $97.81
Bayer Healthcare Pharmaceuticals INC. 4 $96.31
Boehringer Ingelheim Pharmaceuticals, INC. 4 $79.54
E.R. Squibb & Sons, L.L.C. 3 $60.63
Astellas Pharma US INC 2 $47.10
Exact Sciences Corporation 2 $45.57
Phathom Pharmaceuticals, INC. 2 $38.17
Radius Health, INC. 1 $27.25
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 1 $17.94

By nature of payment

Food and Beverage
$1,884

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,903
Patients
1,281
Total drug cost
$53,478
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 480 145 $7,340
Amlodipine Besylate Generic 437 145 $4,628
Metformin Hcl Generic 317 92 $3,283
Levothyroxine Sodium Generic 286 93 $5,379
Pantoprazole Sodium Generic 281 93 $3,715
Rosuvastatin Calcium Generic 272 105 $5,266
Lisinopril Generic 228 75 $2,335
Tamsulosin Hcl Generic 225 76 $6,000
Metoprolol Succinate Generic 224 79 $4,635
Hydrochlorothiazide Generic 202 67 $1,236

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jacek Grela's medical specialty?
Dr. Jacek Grela practices Internal Medicine Physician in Lemont, IL.
Where does Dr. Jacek Grela practice?
Dr. Jacek Grela practices at 1011 State St, Lemont, IL 604394768. Office phone: 6307540141.
What is Dr. Jacek Grela's NPI?
Dr. Jacek Grela's National Provider Identifier (NPI) is 1700850625, issued by NPPES.
Does Dr. Jacek Grela accept Medicare assignment?
Yes. Dr. Jacek Grela accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jacek Grela commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Albumin (protein) level (HCPCS 82040). Source: CMS Medicare Physician & Other Practitioners file.