Doctor profile · Federal record

Dr. Jennifer Velasco, D.O., PH.D.

Internal Medicine Physician (CMS: Rheumatology) · Student in an Organized Health Care Education/Training Program · Rheumatology Physician · Oak Lawn, IL

  • NPI 1639564743
  • Accepts Medicare
  • 11 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
4440 W 95Th St
Oak Lawn, IL 60453
(708) 684-5673
Additional location
1600 N Randall RD Ste 225131
Elgin, IL 601237803
(630) 232-2391
fax (630) 232-2472
Mailing address
1600 N Randall RD Ste 225131
Elgin, IL 601237803

Credentials & registration

NPPES · NUCC
NPI registered
April 2015 — 11 yrs on file
Profile last updated
November 15, 2021
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Illinois #036.143846 · Illinois #036143846

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639564743. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
361
Distinct HCPCS
4
Medicare allowed
$56,509
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 225 111 $130
99205 New patient office or other outpatient visit, 60-74 minutes 84 84 $229
99215 Established patient office or other outpatient visit, 40-54 minutes 36 28 $182
99213 Established patient office or other outpatient visit, 20-29 minutes 16 12 $94

In context: peer comparison

Among 29 peers in Oak Lawn Internal Medicine Physician, average services per provider: 146. This provider delivers 2.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$21
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Medline Industries Lp 1 $20.53

By nature of payment

Food and Beverage
$21

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
874
Patients
259
Total drug cost
$411,872
Drug Type Claims Patients Total cost
Prednisone Generic 259 101 $2,358
Hydroxychloroquine Sulfate Generic 164 66 $8,473
Methotrexate (Methotrexate Sodium) Brand 137 49 $6,684
Leflunomide Generic 49 19 $5,275
Sulfasalazine Dr (Sulfasalazine) Brand 47 12 $2,103
Humira(Cf) Pen (Adalimumab) Brand 40 0 $379,519
Allopurinol Generic 32 12 $298
Pilocarpine Hcl Generic 28 0 $4,208
Amlodipine Besylate Generic 24 0 $341
Meloxicam Generic 20 0 $234

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jennifer Velasco's medical specialty?
Dr. Jennifer Velasco practices Internal Medicine Physician in Oak Lawn, IL.
Where does Dr. Jennifer Velasco practice?
Dr. Jennifer Velasco practices at 4440 W 95Th St, Oak Lawn, IL 60453. Office phone: 7086845673.
What is Dr. Jennifer Velasco's NPI?
Dr. Jennifer Velasco's National Provider Identifier (NPI) is 1639564743, issued by NPPES.
Does Dr. Jennifer Velasco accept Medicare assignment?
Yes. Dr. Jennifer Velasco accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jennifer Velasco commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.