Doctor profile · Federal record
Dr. Katherine Dewey, M.D.
Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Saint Charles, MO
- NPI 1194786434
- Accepts Medicare
- 32 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1475 Kisker RD Ste 200
Saint Charles, MO 633048788
(636) 498-5870
fax (636) 498-5886 - Mailing address
-
Po Box 955534
Saint Louis, MO 631953539
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- October 21, 2020
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207V00000X — NUCC code
- State license (1)
- Missouri #2004023910
- Medicaid
- MO #207366204
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1194786434. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
79
Distinct HCPCS
3
Medicare allowed
$2,571
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0101 |
Cervical or vaginal cancer screening; pelvic and clinical breast examination | 44 | 44 | $27 | |
Q0091 |
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 18 | 18 | $18 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 17 | 15 | $63 |
In context: peer comparison
Among 3 peers in Saint Charles Obstetrics & Gynecology Physician, average services per provider: 27. This provider delivers 2.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
248
Patients
60
Total drug cost
$8,949
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Estradiol | Generic | 55 | 31 | $4,122 |
| Fluconazole | Generic | 30 | 15 | $94 |
| Ibandronate Sodium | Generic | 28 | 0 | $726 |
| Oxybutynin Chloride ER (Oxybutynin Chloride) | Brand | 27 | 0 | $985 |
| Clobetasol Propionate | Generic | 19 | 14 | $748 |
| Medroxyprogesterone Acetate | Generic | 17 | 0 | $822 |
| Vienva (Levonorgestrel/Ethin.Estradiol) | Brand | 17 | 0 | $122 |
| Alendronate Sodium | Generic | 15 | 0 | $106 |
| Valacyclovir (Valacyclovir Hcl) | Brand | 15 | 0 | $749 |
| Norgestimate-Ethinyl Estradiol | Generic | 13 | 0 | $332 |
Frequently asked questions
What is Dr. Katherine Dewey's medical specialty?
Dr. Katherine Dewey practices Obstetrics & Gynecology Physician in Saint Charles, MO.
Where does Dr. Katherine Dewey practice?
Dr. Katherine Dewey practices at 1475 Kisker RD Ste 200, Saint Charles, MO 633048788. Office phone: 6364985870.
What is Dr. Katherine Dewey's NPI?
Dr. Katherine Dewey's National Provider Identifier (NPI) is 1194786434, issued by NPPES.
Does Dr. Katherine Dewey accept Medicare assignment?
Yes. Dr. Katherine Dewey accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Dewey commonly perform?
Top Medicare-reported procedures in 2023: Cervical or vaginal cancer screening; pelvic and clinical breast examination (HCPCS G0101); Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (HCPCS Q0091); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.