Doctor profile · Federal record
Dr. Tammy O'Brien, M.D.
Family Medicine Physician (CMS: Family Practice) · Cedar Rapids, IA
- NPI 1184703571
- Accepts Medicare
- MIPS 80.9 / 100 · 2023
- 31 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
500 8Th Ave Se
Cedar Rapids, IA 524012134
(319) 364-8704
fax (319) 365-7747
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- July 25, 2023
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Iowa #31465
- Medicaid
- IA #1170308
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1184703571. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,556
Distinct HCPCS
10
Medicare allowed
$62,591
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0897 |
Injection, denosumab, 1 mg | 1,200 | 13 | $23 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 124 | 79 | $121 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 75 | 75 | $123 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 36 | 32 | $169 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 29 | 29 | $17 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 26 | 24 | $84 | |
96372 |
Injection of drug or substance under skin or into muscle | 20 | 13 | $13 | |
83036 |
Hemoglobin a1c level | 19 | 14 | $10 | |
G0008 |
Administration of influenza virus vaccine | 14 | 14 | $29 | |
90662 |
Influenza vaccine split virus, preservative free | 13 | 13 | $72 |
In context: peer comparison
Among 25 peers in Cedar Rapids Family Medicine Physician, average services per provider: 343. This provider delivers 4.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,410
Patients
334
Total drug cost
$17,992
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 278 | 64 | $3,410 |
| Atorvastatin Calcium | Generic | 143 | 42 | $1,503 |
| Gabapentin | Generic | 98 | 22 | $1,374 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 93 | 18 | $2,006 |
| Omeprazole | Generic | 85 | 26 | $808 |
| Simvastatin | Generic | 82 | 26 | $580 |
| Lisinopril | Generic | 81 | 25 | $512 |
| Alprazolam | Generic | 79 | 15 | $356 |
| Glipizide ER (Glipizide) | Brand | 77 | 19 | $2,186 |
| Furosemide | Generic | 71 | 12 | $624 |
Hospital affiliations
Frequently asked questions
What is Dr. Tammy O'Brien's medical specialty?
Dr. Tammy O'Brien practices Family Medicine Physician in Cedar Rapids, IA.
Where does Dr. Tammy O'Brien practice?
Dr. Tammy O'Brien practices at 500 8Th Ave Se, Cedar Rapids, IA 524012134. Office phone: 3193648704.
What is Dr. Tammy O'Brien's NPI?
Dr. Tammy O'Brien's National Provider Identifier (NPI) is 1184703571, issued by NPPES.
Does Dr. Tammy O'Brien accept Medicare assignment?
Yes. Dr. Tammy O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tammy O'Brien commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.