Doctor profile · Federal record
Dr. Douglas Lillie, MD
Internal Medicine Physician (CMS: Internal Medicine) · West Allis, WI
- NPI 1811004369
- Accepts Medicare
- 41 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2424 S 90Th St, #310
West Allis, WI 532272455
(414) 328-8700
fax (414) 328-8864 - Mailing address
-
Po Box 735044
Chicago, IL 606735044
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- June 5, 2025
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Wisconsin #30235
- Medicaid
- WI #31481200
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1811004369. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,457
Distinct HCPCS
10
Medicare allowed
$145,248
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 345 | 234 | $122 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 343 | 218 | $85 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 207 | 207 | $124 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 131 | 30 | $76 | |
G0008 |
Administration of influenza virus vaccine | 85 | 85 | $29 | |
90662 |
Influenza vaccine split virus, preservative free | 82 | 82 | $72 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 49 | 35 | $166 | |
99239 |
Hospital discharge day management, more than 30 minutes | 46 | 35 | $109 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 42 | 16 | $114 | |
99495 |
Transitional care management services for problem of at least moderate complexity | 42 | 33 | $190 |
In context: peer comparison
Among 5 peers in West Allis Internal Medicine Physician, average services per provider: 83. This provider delivers 18× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
7,681
Patients
1,909
Total drug cost
$444,741
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 1,157 | 296 | $14,015 |
| Amlodipine Besylate | Generic | 1,009 | 253 | $7,921 |
| Losartan Potassium | Generic | 819 | 195 | $11,361 |
| Metoprolol Succinate | Generic | 565 | 144 | $12,789 |
| Levothyroxine Sodium | Generic | 561 | 134 | $9,300 |
| Lisinopril | Generic | 439 | 104 | $3,385 |
| Pantoprazole Sodium | Generic | 409 | 102 | $7,362 |
| Eliquis (Apixaban) | Brand | 379 | 71 | $342,244 |
| Hydrochlorothiazide | Generic | 377 | 105 | $2,092 |
| Gabapentin | Generic | 346 | 76 | $7,320 |
Hospital affiliations
Frequently asked questions
What is Dr. Douglas Lillie's medical specialty?
Dr. Douglas Lillie practices Internal Medicine Physician in West Allis, WI.
Where does Dr. Douglas Lillie practice?
Dr. Douglas Lillie practices at 2424 S 90Th St, West Allis, WI 532272455. Office phone: 4143288700.
What is Dr. Douglas Lillie's NPI?
Dr. Douglas Lillie's National Provider Identifier (NPI) is 1811004369, issued by NPPES.
Does Dr. Douglas Lillie accept Medicare assignment?
Yes. Dr. Douglas Lillie accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Douglas Lillie commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.