Doctor profile · Federal record

Dr. Constantine Vlamis, MD

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

  • NPI 1699268128
  • Accepts Medicare
  • 8 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
172 E Schiller St
Elmhurst, IL 601262816
(331) 221-9001
fax (331) 221-2315
Additional location
701 N 1St St
Springfield, IL 627023757
(217) 528-7541
fax (217) 606-3057
Mailing address
2650 Ridge Ave Ste 1223
Evanston, IL 602011700

Credentials & registration

NPPES · NUCC
NPI registered
June 2018 — 8 yrs on file
Profile last updated
November 19, 2025
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Illinois #036154912 · Illinois #125.072871

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1699268128. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
844
Distinct HCPCS
5
Medicare allowed
$74,966
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 530 185 $75
99239 Hospital discharge day management, more than 30 minutes 126 121 $109
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 78 60 $114
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 60 60 $166
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 50 19 $48

In context: peer comparison

Among 19 peers in this city , average services per provider: 100. This provider delivers 8.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
36
Patients
12
Total drug cost
$347
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 13 0 $141
Pantoprazole Sodium Generic 12 12 $170
Furosemide Generic 11 0 $36

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Constantine Vlamis's medical specialty?
Dr. Constantine Vlamis practices Internal Medicine Physician in Elmhurst, IL.
Where does Dr. Constantine Vlamis practice?
Dr. Constantine Vlamis practices at 172 E Schiller St, Elmhurst, IL 601262816. Office phone: 3312219001.
What is Dr. Constantine Vlamis's NPI?
Dr. Constantine Vlamis's National Provider Identifier (NPI) is 1699268128, issued by NPPES.
Does Dr. Constantine Vlamis accept Medicare assignment?
Yes. Dr. Constantine Vlamis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Constantine Vlamis commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.