Doctor profile · Federal record

Dr. Inessa Gelfand, M.D.

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Chicago, IL

  • NPI 1528080637
  • Accepts Medicare
  • 28 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
6420 N. California Ave., California Devon Medical Center
Chicago, IL 60645
(773) 973-6100
fax (773) 262-4882
Mailing address
342 S Milwaukee Ave
Wheeling, IL 600905021

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
February 26, 2020
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State license (1)
Illinois #036-115321
Medicaid
IL #036-115321

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1528080637. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
8,645
Distinct HCPCS
10
Medicare allowed
$347,211
HCPCS Description Services Patients Avg allowed
J0897 Injection, denosumab, 1 mg 3,514 62 $13
99214 Established patient office or other outpatient visit, 30-39 minutes 1,566 521 $136
36415 Insertion of needle into vein for collection of blood sample 767 389 $8
84443 Blood test, thyroid stimulating hormone (tsh) 484 273 $16
84439 Thyroxine (thyroid chemical), free 481 269 $9
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 383 244 $8
83036 Hemoglobin a1c level 322 191 $9
80061 Blood test, lipids (cholesterol and triglycerides) 248 161 $13
76536 Ultrasound scan of head and neck soft tissue 174 172 $118
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 164 64 $36

In context: peer comparison

Among 41 peers in Chicago Endocrinology, Diabetes & Metabolism Physician, average services per provider: 186. This provider delivers 46× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,460
Transactions
79
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Amgen INC. 10 $389.54
Abbott Laboratories 5 $387.05
Novo Nordisk INC 11 $260.48
Dexcom, INC. 6 $205.00
Sanofi-Aventis U.S. LLC 5 $189.52
Lilly USA, LLC 12 $178.27
Astellas Pharma US INC 4 $129.08
Abbvie INC. 4 $100.94
Novartis Pharmaceuticals Corporation 5 $95.28
Corcept Therapeutics 4 $85.11
Boehringer Ingelheim Pharmaceuticals, INC. 3 $67.65
Xeris Pharmaceuticals, INC. 3 $61.32
Ardelyx, INC. 3 $60.56
Ascendis Pharma INC 2 $45.26
Sumitomo Pharma America, INC. 2 $33.11

By nature of payment

Food and Beverage
$2,400
Education
$60

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
5,610
Patients
1,017
Total drug cost
$2,471,298
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 1,174 212 $17,825
Metformin Hcl Generic 681 151 $9,711
Glimepiride Generic 614 122 $12,719
Trulicity (Dulaglutide) Brand 583 84 $784,955
Tradjenta (Linagliptin) Brand 493 73 $394,672
Jardiance (Empagliflozin) Brand 427 74 $381,976
Metformin Hcl ER (Metformin Hcl) Brand 348 67 $6,537
Synthroid (Levothyroxine Sodium) Brand 236 33 $13,835
Ozempic (Semaglutide) Brand 217 41 $292,430
Methimazole Generic 171 30 $1,938

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Inessa Gelfand's medical specialty?
Dr. Inessa Gelfand practices Endocrinology, Diabetes & Metabolism Physician in Chicago, IL.
Where does Dr. Inessa Gelfand practice?
Dr. Inessa Gelfand practices at 6420 N. California Ave., Chicago, IL 60645. Office phone: 7739736100.
What is Dr. Inessa Gelfand's NPI?
Dr. Inessa Gelfand's National Provider Identifier (NPI) is 1528080637, issued by NPPES.
Does Dr. Inessa Gelfand accept Medicare assignment?
Yes. Dr. Inessa Gelfand accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Inessa Gelfand commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.