Doctor profile · Federal record
Dr. Mark Stolar, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Woodstock, IL
- NPI 1396784591
- Accepts Medicare
- MIPS 91.3 / 100 · 2023
- 47 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3707 Doty RD Ste E&F
Woodstock, IL 600987530
(815) 338-6600
fax (815) 337-1980
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- March 18, 2024
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Illinois #036061561
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1396784591. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,664
Distinct HCPCS
10
Medicare allowed
$161,413
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 520 | 397 | $125 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 301 | 301 | $126 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 255 | 203 | $88 | |
83036 |
Hemoglobin a1c level | 141 | 101 | $10 | |
G0008 |
Administration of influenza virus vaccine | 85 | 85 | $32 | |
90662 |
Influenza vaccine split virus, preservative free | 80 | 80 | $72 | |
93005 |
Routine electrocardiogram (ecg) using at least 12 leads with tracing | 60 | 59 | $6 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 39 | 39 | $282 | |
G0009 |
Administration of pneumococcal vaccine | 39 | 39 | $32 | |
96372 |
Injection of drug or substance under skin or into muscle | 29 | 17 | $14 |
In context: peer comparison
Among 2 peers in Woodstock Internal Medicine Physician, average services per provider: 176. This provider delivers 9.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
3,009
Patients
952
Total drug cost
$265,648
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 523 | 152 | $9,648 |
| Atorvastatin Calcium | Generic | 361 | 113 | $5,755 |
| Amlodipine Besylate | Generic | 277 | 95 | $3,362 |
| Rosuvastatin Calcium | Generic | 229 | 80 | $3,576 |
| Metoprolol Succinate | Generic | 199 | 65 | $3,518 |
| Losartan Potassium | Generic | 168 | 55 | $2,468 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 166 | 37 | $4,690 |
| Pantoprazole Sodium | Generic | 158 | 48 | $2,565 |
| Ozempic (Semaglutide) | Brand | 155 | 37 | $220,184 |
| Gabapentin | Generic | 154 | 49 | $2,541 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Stolar's medical specialty?
Dr. Mark Stolar practices Internal Medicine Physician in Woodstock, IL.
Where does Dr. Mark Stolar practice?
Dr. Mark Stolar practices at 3707 Doty RD Ste E&F, Woodstock, IL 600987530. Office phone: 8153386600.
What is Dr. Mark Stolar's NPI?
Dr. Mark Stolar's National Provider Identifier (NPI) is 1396784591, issued by NPPES.
Does Dr. Mark Stolar accept Medicare assignment?
Yes. Dr. Mark Stolar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Stolar commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.