Doctor profile · Federal record
Dr. William Martinez, MD
Family Medicine Physician (CMS: Family Practice) · Libertyville, IL
- NPI 1144212382
- Accepts Medicare
- 40 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1870 W Winchester RD, Suite 145
Libertyville, IL 600485358
(847) 996-0700
fax (847) 996-0679
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- December 9, 2021
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Illinois #036099225
- Medicaid
- IL #036099225
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1144212382. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
305
Distinct HCPCS
6
Medicare allowed
$23,098
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 76 | 32 | $94 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 65 | 38 | $133 | |
36415 |
Insertion of needle into vein for collection of blood sample | 48 | 39 | $8 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 45 | 45 | $133 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 43 | 43 | $19 | |
81002 |
Urinalysis, manual test | 28 | 21 | $3 |
In context: peer comparison
Among 7 peers in Libertyville Family Medicine Physician, average services per provider: 88. This provider delivers 3.5× the peer median.Open Payments
Industry payments received
All-time total
$1,283
Transactions
41
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 11 | $473.21 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 4 | $255.50 | |
| Abbott Laboratories | 3 | $175.45 | |
| Lilly USA, LLC | 13 | $160.64 | |
| Novo Nordisk INC | 4 | $101.29 | |
| Pfizer INC. | 4 | $85.64 | |
| Ardelyx, INC. | 1 | $17.67 | |
| Kowa Pharmaceuticals America, INC. | 1 | $13.12 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
855
Patients
264
Total drug cost
$10,937
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 103 | 31 | $1,491 |
| Losartan Potassium | Generic | 71 | 21 | $963 |
| Metformin Hcl | Generic | 70 | 19 | $684 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 67 | 20 | $766 |
| Pravastatin Sodium | Generic | 62 | 19 | $1,410 |
| Levothyroxine Sodium | Generic | 61 | 15 | $759 |
| Amlodipine Besylate | Generic | 60 | 19 | $788 |
| Lisinopril | Generic | 59 | 17 | $363 |
| Lorazepam | Generic | 53 | 12 | $396 |
| Carvedilol | Generic | 52 | 14 | $610 |
Hospital affiliations
Frequently asked questions
What is Dr. William Martinez's medical specialty?
Dr. William Martinez practices Family Medicine Physician in Libertyville, IL.
Where does Dr. William Martinez practice?
Dr. William Martinez practices at 1870 W Winchester RD, Libertyville, IL 600485358. Office phone: 8479960700.
What is Dr. William Martinez's NPI?
Dr. William Martinez's National Provider Identifier (NPI) is 1144212382, issued by NPPES.
Does Dr. William Martinez accept Medicare assignment?
Yes. Dr. William Martinez accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Martinez commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.