Doctor profile · Federal record
Dr. Matthew Obrien, MD
Internal Medicine Physician (CMS: Internal Medicine) · Chicago, IL
- NPI 1306900378
- MIPS 91.3 / 100 · 2023
- 22 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
675 N. St. Clair, Suite 18-200
Chicago, IL 60611
(312) 695-8630 - Mailing address
-
750 N. Lake Shore Drive, 6Th Floor
Chicago, IL 60611
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- July 10, 2014
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Pennsylvania #MT183707
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1306900378. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
238
Distinct HCPCS
8
Medicare allowed
$32,293
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 85 | 61 | $134 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 42 | 27 | $134 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 40 | 40 | $137 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 25 | 22 | $190 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 12 | 12 | $96 | |
G0008 |
Administration of influenza virus vaccine | 12 | 12 | $32 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 11 | 11 | $282 | |
G0009 |
Administration of pneumococcal vaccine | 11 | 11 | $32 |
In context: peer comparison
Among 487 peers in Chicago Internal Medicine Physician, average services per provider: 168. This provider delivers 1.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
664
Patients
123
Total drug cost
$70,590
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 113 | 34 | $2,380 |
| Lisinopril | Generic | 95 | 26 | $1,294 |
| Amlodipine Besylate | Generic | 71 | 23 | $737 |
| Gabapentin | Generic | 62 | 17 | $981 |
| Tamsulosin Hcl | Generic | 43 | 12 | $1,002 |
| Hydrochlorothiazide | Generic | 41 | 11 | $178 |
| Metformin Hcl | Generic | 37 | 0 | $654 |
| Levothyroxine Sodium | Generic | 32 | 0 | $901 |
| Ozempic (Semaglutide) | Brand | 30 | 0 | $32,238 |
| Metoprolol Succinate | Generic | 29 | 0 | $830 |
Frequently asked questions
What is Dr. Matthew Obrien's medical specialty?
Dr. Matthew Obrien practices Internal Medicine Physician in Chicago, IL.
Where does Dr. Matthew Obrien practice?
Dr. Matthew Obrien practices at 675 N. St. Clair, Chicago, IL 60611. Office phone: 3126958630.
What is Dr. Matthew Obrien's NPI?
Dr. Matthew Obrien's National Provider Identifier (NPI) is 1306900378, issued by NPPES.
Does Dr. Matthew Obrien accept Medicare assignment?
Dr. Matthew Obrien does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Matthew Obrien commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99443); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.