Doctor profile · Federal record
Dr. Genevieve Sierminski, M.D.
Nephrology Physician (CMS: Nephrology) · Flint, MI
- NPI 1376742858
- Accepts Medicare
- 27 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
G1071 N Ballenger Hwy, Suite 310
Flint, MI 485044453
(810) 238-4172
fax (810) 238-4153
Credentials & registration
- NPI registered
- July 2007 — 19 yrs on file
- Profile last updated
- February 16, 2012
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Michigan #4301085687
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1376742858. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,936
Distinct HCPCS
10
Medicare allowed
$263,849
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 641 | 232 | $76 | |
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 332 | 52 | $333 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 303 | 158 | $100 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 184 | 76 | $115 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 135 | 103 | $81 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 114 | 108 | $125 | |
90935 |
Hemodialysis procedure with physician evaluation | 86 | 52 | $68 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 56 | 35 | $128 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 45 | 44 | $168 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 28 | 28 | $203 |
In context: peer comparison
Among 7 peers in Flint Nephrology Physician, average services per provider: 162. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$21
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Fresenius USA Marketing, INC. | 1 | $20.72 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,298
Patients
452
Total drug cost
$34,530
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 255 | 84 | $3,346 |
| Hydralazine Hcl | Generic | 186 | 52 | $3,400 |
| Furosemide | Generic | 135 | 52 | $788 |
| Losartan Potassium | Generic | 119 | 41 | $2,589 |
| Lisinopril | Generic | 93 | 32 | $923 |
| Potassium Chloride | Generic | 85 | 27 | $4,164 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 76 | 65 | $614 |
| Doxazosin Mesylate | Generic | 54 | 16 | $2,658 |
| Metoprolol Tartrate | Generic | 54 | 16 | $579 |
| Bumetanide | Generic | 44 | 14 | $2,377 |
Hospital affiliations
Frequently asked questions
What is Dr. Genevieve Sierminski's medical specialty?
Dr. Genevieve Sierminski practices Nephrology Physician in Flint, MI.
Where does Dr. Genevieve Sierminski practice?
Dr. Genevieve Sierminski practices at G1071 N Ballenger Hwy, Flint, MI 485044453. Office phone: 8102384172.
What is Dr. Genevieve Sierminski's NPI?
Dr. Genevieve Sierminski's National Provider Identifier (NPI) is 1376742858, issued by NPPES.
Does Dr. Genevieve Sierminski accept Medicare assignment?
Yes. Dr. Genevieve Sierminski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Genevieve Sierminski commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.