Doctor profile · Federal record

Dr. Margaret Wierman, MD

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Aurora, CO

  • NPI 1639269319
  • Accepts Medicare
  • MIPS 93.3 / 100 · 2023
  • 47 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
12605 E 16Th Ave
Aurora, CO 800452545
(720) 848-0000
Mailing address
Po Box 110429
Aurora, CO 800420429

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
October 29, 2012
Year of graduation
1979 — 47 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State license (1)
Colorado #28286
Medicaid
CO #01282862

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639269319. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
110
Distinct HCPCS
3
Medicare allowed
$13,114
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 65 49 $145
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 34 18 $50
99205 New patient office or other outpatient visit, 60-74 minutes 11 11 $183

In context: peer comparison

Among 20 peers in this city , average services per provider: 41. This provider delivers 2.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$210
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Neurocrine Biosciences, Inc. 1 $169.86
Novo Nordisk Inc 1 $40.00

By nature of payment

Food and Beverage
$210

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
293
Patients
48
Total drug cost
$89,492
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 76 29 $1,513
Prednisone Generic 63 19 $836
Cabergoline Generic 34 0 $5,865
Metformin Hcl Generic 26 0 $324
Testosterone Generic 24 0 $7,041
Synthroid (Levothyroxine Sodium) Brand 23 0 $3,095
Lysodren (Mitotane) Brand 20 0 $53,786
Fludrocortisone Acetate Generic 15 0 $889
Ozempic (Semaglutide) Brand 12 0 $16,144

Frequently asked questions

Auto-generated from federal data
What is Dr. Margaret Wierman's medical specialty?
Dr. Margaret Wierman practices Endocrinology, Diabetes & Metabolism Physician in Aurora, CO.
Where does Dr. Margaret Wierman practice?
Dr. Margaret Wierman practices at 12605 E 16Th Ave, Aurora, CO 800452545. Office phone: 7208480000.
What is Dr. Margaret Wierman's NPI?
Dr. Margaret Wierman's National Provider Identifier (NPI) is 1639269319, issued by NPPES.
Does Dr. Margaret Wierman accept Medicare assignment?
Yes. Dr. Margaret Wierman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Wierman commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.