Doctor profile · Federal record
Dr. Sara Koster, FNP-BC
Family Nurse Practitioner (CMS: Nurse Practitioner) · Nurse Practitioner · Grand Rapids, MI
- NPI 1740575877
- Accepts Medicare
- 16 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
100 Michigan St Ne
Grand Rapids, MI 495032560
(616) 391-1680 - Additional location
-
300 68Th St Se
Grand Rapids, MI 495486927
(616) 455-5000
fax (616) 455-5960 - Mailing address
-
2537 Momentum Pl
Chicago, IL 606895325
Credentials & registration
- NPI registered
- June 2011 — 15 yrs on file
- Profile last updated
- March 26, 2026
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- Michigan #4704169831
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1740575877. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
128
Distinct HCPCS
4
Medicare allowed
$8,411
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 50 | 48 | $74 | |
81002 |
Urinalysis, manual test | 30 | 28 | $3 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 29 | 29 | $92 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 19 | 19 | $101 |
In context: peer comparison
Among 81 peers in Grand Rapids Family Nurse Practitioner, average services per provider: 411. This provider delivers 0.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
173
Patients
172
Total drug cost
$1,367
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 36 | 36 | $128 |
| Prednisone | Generic | 33 | 33 | $65 |
| Azithromycin | Generic | 24 | 24 | $136 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 23 | 23 | $784 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 21 | 20 | $134 |
| Amoxicillin | Generic | 12 | 12 | $44 |
| Doxycycline Hyclate | Generic | 12 | 12 | $61 |
| Tramadol Hcl | Generic | 12 | 12 | $15 |
Frequently asked questions
What is Dr. Sara Koster's medical specialty?
Dr. Sara Koster practices Family Nurse Practitioner in Grand Rapids, MI.
Where does Dr. Sara Koster practice?
Dr. Sara Koster practices at 100 Michigan St Ne, Grand Rapids, MI 495032560. Office phone: 6163911680.
What is Dr. Sara Koster's NPI?
Dr. Sara Koster's National Provider Identifier (NPI) is 1740575877, issued by NPPES.
Does Dr. Sara Koster accept Medicare assignment?
Yes. Dr. Sara Koster accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sara Koster commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Urinalysis, manual test (HCPCS 81002); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.