Doctor profile · Federal record

Dr. Viju John, M.D.

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

  • NPI 1831201433
  • Accepts Medicare
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1700 W van Buren St, Suite 500
Chicago, IL 606123218
(312) 563-2875
fax (312) 942-3012

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
February 12, 2008
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207R00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831201433. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
650
Distinct HCPCS
10
Medicare allowed
$67,350
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 246 155 $135
83036 Hemoglobin a1c level 89 65 $10
99213 Established patient office or other outpatient visit, 20-29 minutes 84 78 $96
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 52 52 $137
99215 Established patient office or other outpatient visit, 40-54 minutes 43 37 $190
G0008 Administration of influenza virus vaccine 42 42 $32
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 34 34 $76
99495 Transitional care management services for problem of at least moderate complexity 13 13 $216
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 13 13 $55
G0009 Administration of pneumococcal vaccine 12 12 $32

In context: peer comparison

Among 487 peers in Chicago Internal Medicine Physician, average services per provider: 168. This provider delivers 3.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,537
Patients
459
Total drug cost
$23,875
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 198 65 $1,890
Atorvastatin Calcium Generic 184 62 $3,359
Gabapentin Generic 140 42 $2,368
Lisinopril Generic 131 39 $1,511
Metformin Hcl Generic 110 29 $1,382
Hydrochlorothiazide Generic 106 39 $620
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 102 18 $1,681
Metoprolol Succinate Generic 96 29 $2,569
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 90 26 $3,560
Duloxetine Hcl Generic 69 23 $1,211

Frequently asked questions

Auto-generated from federal data
What is Dr. Viju John's medical specialty?
Dr. Viju John practices Internal Medicine Physician in Chicago, IL.
Where does Dr. Viju John practice?
Dr. Viju John practices at 1700 W van Buren St, Chicago, IL 606123218. Office phone: 3125632875.
What is Dr. Viju John's NPI?
Dr. Viju John's National Provider Identifier (NPI) is 1831201433, issued by NPPES.
Does Dr. Viju John accept Medicare assignment?
Yes. Dr. Viju John accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Viju John commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Hemoglobin a1c level (HCPCS 83036); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.