Doctor profile · Federal record
Dr. Frank O'Brien, MD
Nephrology Physician (CMS: Nephrology) · Saint Louis, MO
- NPI 1144774266
- Accepts Medicare
- MIPS 79.3 / 100 · 2023
- 20 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4921 Parkview Pl, Div Im Nephrology, Ste 5C
Saint Louis, MO 631101032
(314) 362-7603
fax (314) 362-5470 - Mailing address
-
Po Box 7412011
Chicago, IL 606742011
Credentials & registration
- NPI registered
- August 2016 — 10 yrs on file
- Profile last updated
- April 17, 2025
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Missouri #2017022825
- Medicaid
- MO #200045360
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1144774266. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
522
Distinct HCPCS
10
Medicare allowed
$84,924
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 94 | 47 | $345 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 88 | 43 | $78 | |
90966 |
Home dialysis services per month (20 years or older) | 69 | 13 | $290 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 57 | 39 | $123 | |
90935 |
Hemodialysis procedure with physician evaluation | 53 | 35 | $71 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 42 | 31 | $89 | |
90945 |
Dialysis procedure including 1 evaluation | 39 | 13 | $84 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 38 | 17 | $118 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 25 | 22 | $129 | |
81002 |
Urinalysis, manual test | 17 | 16 | $3 |
In context: peer comparison
Among 28 peers in Saint Louis Nephrology Physician, average services per provider: 96. This provider delivers 5.4× the peer median.Open Payments
Industry payments received
All-time total
$1,530
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Merck Sharp & Dohme LLC | 1 | $1,500.00 | |
| Lilly USA, LLC | 1 | $30.02 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
625
Patients
65
Total drug cost
$50,483
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Carvedilol | Generic | 107 | 21 | $977 |
| Amlodipine Besylate | Generic | 97 | 20 | $457 |
| Chlorthalidone | Generic | 72 | 13 | $1,155 |
| Furosemide | Generic | 46 | 0 | $342 |
| Losartan Potassium | Generic | 42 | 11 | $559 |
| Lisinopril | Generic | 39 | 0 | $295 |
| Atorvastatin Calcium | Generic | 36 | 0 | $186 |
| Levothyroxine Sodium | Generic | 34 | 0 | $313 |
| Hydralazine Hcl | Generic | 28 | 0 | $387 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 22 | 0 | $13,384 |
Hospital affiliations
Frequently asked questions
What is Dr. Frank O'Brien's medical specialty?
Dr. Frank O'Brien practices Nephrology Physician in Saint Louis, MO.
Where does Dr. Frank O'Brien practice?
Dr. Frank O'Brien practices at 4921 Parkview Pl, Saint Louis, MO 631101032. Office phone: 3143627603.
What is Dr. Frank O'Brien's NPI?
Dr. Frank O'Brien's National Provider Identifier (NPI) is 1144774266, issued by NPPES.
Does Dr. Frank O'Brien accept Medicare assignment?
Yes. Dr. Frank O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Frank O'Brien commonly perform?
Top Medicare-reported procedures in 2023: Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Home dialysis services per month (20 years or older) (HCPCS 90966). Source: CMS Medicare Physician & Other Practitioners file.