Obstetrics & Gynecology · Santa Monica, CA
NPI
1518006188
Since 2007
Specialty
Obstetrics & Gynecology
Code 207V00000X
Group practices
1
Medicare group memberships
Hospitals
1
Hospital affiliations
2121 Wilshire Blvd, Suite 303
Santa Monica, CA, 90403
Phone (310) 264-1777
Groups this clinician bills Medicare through
Medicare paid, 2024
$32K
314 services
Medicare patients, 2024
200
Average age 74
Drug cost, 2024
$36K
241 prescriptions
Company payments, 2025
$154
From 6 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Marki J Knox was code 99215 (office e&m - established), 136 times for 127 patients. In total Marki J Knox billed 314 services in 18 codes, and Medicare paid $32K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2007-08-08.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99215 Office E&M - Established | Office | 136 | 127 | $127.92 | $17K |
| 99213 Office E&M - Established | Office | 63 | 42 | $66.61 | $4,196 |
| 99214 Office E&M - Established | Office | 35 | 26 | $101.84 | $3,565 |
| 99205 Office E&M - New | Office | 24 | 24 | $160.33 | $3,848 |
| 99212 Office E&M - Established | Office | 13 | 11 | $46.70 | $607 |
| 99211 Office E&M - Established | Office | 12 | 11 | $16.57 | $199 |
By year: 2022 $34K for 357 services; 2023 $28K for 280 services; 2024 $32K for 314 services.
Medicare prescription drug claims, 2024
In 2024, the drug Marki J Knox prescribed most often to Medicare patients was Progesterone (Progesterone, Micronized), with 44 prescriptions and refills. In total Marki J Knox wrote 241 Medicare prescriptions that cost $36K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Progesterone Progesterone, Micronized | 44 | 112 | 21 | $1,808 |
| Valacyclovir Valacyclovir Hcl | 42 | 44 | Under 11 | $1,028 |
| Estradiol Generic | 41 | 94 | 22 | $5,547 |
| Estradiol (Twice Weekly) Estradiol | 24 | 55 | Under 11 | $2,706 |
| Femring Estradiol Acetate | 15 | 45 | Under 11 | $11K |
| Yuvafem Estradiol | 14 | 34 | Under 11 | $2,430 |
| Dotti Estradiol | 11 | 30 | Under 11 | $1,940 |
Brand drugs: 57 claims; generic drugs: 184 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Marki J Knox $154 ($154 in general payments such as food, travel and fees) from 6 companies. The largest payer was Smith+Nephew, Inc. with $52.86.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.