Doctor profile · Federal record

Dr. Margaret Gladysz, MD

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Internal Medicine Physician · Milwaukee, WI

  • NPI 1366516312
  • Accepts Medicare
  • 20 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2801 W Kinnickinnic River Pkwy, Suite 245
Milwaukee, WI 532153669
(414) 649-6780
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
November 7, 2024
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State license (1)
Wisconsin #51531-20
Medicaid
WI #100026588

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366516312. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
624
Distinct HCPCS
10
Medicare allowed
$47,218
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 271 79 $74
99214 Established patient office or other outpatient visit, 30-39 minutes 112 95 $122
36415 Insertion of needle into vein for collection of blood sample 55 48 $8
83036 Hemoglobin a1c level 54 48 $9
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 32 30 $116
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 30 22 $33
99215 Established patient office or other outpatient visit, 40-54 minutes 23 22 $167
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 20 14 $108
82962 Blood glucose (sugar) test performed by hand-held instrument 16 16 $3
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 11 11 $166

In context: peer comparison

Among 18 peers in Milwaukee Endocrinology, Diabetes & Metabolism Physician, average services per provider: 72. This provider delivers 8.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,019
Patients
309
Total drug cost
$381,138
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 213 57 $3,480
Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) Brand 96 36 $67,038
Alendronate Sodium Generic 92 24 $1,027
Metformin Hcl Generic 71 20 $923
Metformin Hcl ER (Metformin Hcl) Brand 67 28 $1,344
Methimazole Generic 67 25 $1,034
Glimepiride Generic 64 17 $672
Ozempic (Semaglutide) Brand 60 15 $90,311
Humalog Kwikpen U-100 (Insulin Lispro) Brand 54 23 $78,733
Atorvastatin Calcium Generic 47 12 $327

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Margaret Gladysz's medical specialty?
Dr. Margaret Gladysz practices Endocrinology, Diabetes & Metabolism Physician in Milwaukee, WI.
Where does Dr. Margaret Gladysz practice?
Dr. Margaret Gladysz practices at 2801 W Kinnickinnic River Pkwy, Milwaukee, WI 532153669. Office phone: 4146496780.
What is Dr. Margaret Gladysz's NPI?
Dr. Margaret Gladysz's National Provider Identifier (NPI) is 1366516312, issued by NPPES.
Does Dr. Margaret Gladysz accept Medicare assignment?
Yes. Dr. Margaret Gladysz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Gladysz commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); 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.