Doctor profile · Federal record

Dr. Alan Chow, M.D.

Ophthalmology Physician (CMS: Ophthalmology) · Glen Ellyn, IL

  • NPI 1891802096
  • Accepts Medicare
  • 50 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
386 Pennsylvania Ave Ste 3N
Glen Ellyn, IL 601374323
(630) 858-4411
fax (630) 858-4793
Mailing address
191 Palamino Pl
Wheaton, IL 601871024

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
October 31, 2007
Year of graduation
1976 — 50 yrs since
Specialty taxonomy
207W00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1891802096. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,386
Distinct HCPCS
10
Medicare allowed
$85,077
HCPCS Description Services Patients Avg allowed
92202 Extended exam of the back part of the eye with optic nerve drawing 251 134 $16
92060 Exam to measure eye deviation and range of motion 240 117 $64
92012 Established patient problem focused exam of visual system 226 117 $93
92133 Imaging of optic nerve 223 144 $37
92014 Established patient complete exam of visual system 164 142 $131
92250 Photography of the retina 111 104 $39
92083 Exam of visual field with extended testing 87 76 $65
92134 Imaging of retina 49 38 $41
92285 Photography of content of eyes 18 15 $21
92004 New patient complete exam of visual system 17 17 $155

In context: peer comparison

Among 2 peers in Glen Ellyn Ophthalmology Physician, average services per provider: 111. This provider delivers 12× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
354
Patients
65
Total drug cost
$14,672
Drug Type Claims Patients Total cost
Latanoprost Generic 175 34 $4,822
Timolol Maleate Generic 114 31 $1,651
Brimonidine Tartrate Generic 33 0 $3,437
Alphagan P (Brimonidine Tartrate) Brand 19 0 $4,586
Dorzolamide Hcl Generic 13 0 $176

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alan Chow's medical specialty?
Dr. Alan Chow practices Ophthalmology Physician in Glen Ellyn, IL.
Where does Dr. Alan Chow practice?
Dr. Alan Chow practices at 386 Pennsylvania Ave Ste 3N, Glen Ellyn, IL 601374323. Office phone: 6308584411.
What is Dr. Alan Chow's NPI?
Dr. Alan Chow's National Provider Identifier (NPI) is 1891802096, issued by NPPES.
Does Dr. Alan Chow accept Medicare assignment?
Yes. Dr. Alan Chow accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alan Chow commonly perform?
Top Medicare-reported procedures in 2023: Extended exam of the back part of the eye with optic nerve drawing (HCPCS 92202); Exam to measure eye deviation and range of motion (HCPCS 92060); Established patient problem focused exam of visual system (HCPCS 92012). Source: CMS Medicare Physician & Other Practitioners file.