Doctor profile · Federal record

Dr. Glennalyn Tiangson, MD

Family Medicine Physician (CMS: Family Practice) · Rockford, IL

  • NPI 1376129783
  • Accepts Medicare
  • 20 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3505 N Bell School RD
Rockford, IL 611146624
(779) 696-0300

Credentials & registration

NPPES · NUCC
NPI registered
March 2021 — 5 yrs on file
Profile last updated
June 25, 2024
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Illinois #036.168222

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376129783. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$29
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Verrica Pharmaceuticals Inc. 1 $29.06

By nature of payment

Food and Beverage
$29

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
79
Patients
36
Total drug cost
$5,583
Drug Type Claims Patients Total cost
Lisinopril Generic 23 12 $144
Atorvastatin Calcium Generic 18 12 $241
Amlodipine Besylate Generic 16 12 $195
Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) Brand 11 0 $4,825
Levothyroxine Sodium Generic 11 0 $178

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Glennalyn Tiangson's medical specialty?
Dr. Glennalyn Tiangson practices Family Medicine Physician in Rockford, IL.
Where does Dr. Glennalyn Tiangson practice?
Dr. Glennalyn Tiangson practices at 3505 N Bell School RD, Rockford, IL 611146624. Office phone: 7796960300.
What is Dr. Glennalyn Tiangson's NPI?
Dr. Glennalyn Tiangson's National Provider Identifier (NPI) is 1376129783, issued by NPPES.
Does Dr. Glennalyn Tiangson accept Medicare assignment?
Yes. Dr. Glennalyn Tiangson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.