Doctor profile · Federal record
Dr. Gwen Allen, M.D.
Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Gardena, CA
- NPI 1306942909
- Accepts Medicare
- 32 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1045 W Redondo Beach Blvd, #500
Gardena, CA 902474128
(310) 329-9492
fax (310) 329-3799
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- January 31, 2008
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207V00000X — NUCC code
- State license (1)
- California #A061790
- Medicaid
- CA #00A617900
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1306942909. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
348
Distinct HCPCS
5
Medicare allowed
$35,456
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 135 | 58 | $98 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 109 | 46 | $139 | |
G0101 |
Cervical or vaginal cancer screening; pelvic and clinical breast examination | 44 | 44 | $43 | |
Q0091 |
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 43 | 43 | $49 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 17 | 17 | $180 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 69. This provider delivers 5.0× the peer median.Open Payments
Industry payments received
All-time total
$368
Transactions
15
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Astellas Pharma US Inc | 9 | $228.45 | |
| Sumitomo Pharma America, Inc. | 2 | $40.53 | |
| Baxter Healthcare | 1 | $31.63 | |
| Sage Therapeutics, Inc. | 1 | $26.97 | |
| MAYNE PHARMA COMMERCIAL LLC | 1 | $22.38 | |
| Smith+Nephew, Inc. | 1 | $18.39 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
49
Patients
0
Total drug cost
$815
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Estradiol | Generic | 31 | 0 | $451 |
| Medroxyprogesterone Acetate | Generic | 18 | 0 | $364 |
Frequently asked questions
What is Dr. Gwen Allen's medical specialty?
Dr. Gwen Allen practices Obstetrics & Gynecology Physician in Gardena, CA.
Where does Dr. Gwen Allen practice?
Dr. Gwen Allen practices at 1045 W Redondo Beach Blvd, Gardena, CA 902474128. Office phone: 3103299492.
What is Dr. Gwen Allen's NPI?
Dr. Gwen Allen's National Provider Identifier (NPI) is 1306942909, issued by NPPES.
Does Dr. Gwen Allen accept Medicare assignment?
Yes. Dr. Gwen Allen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gwen Allen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Cervical or vaginal cancer screening; pelvic and clinical breast examination (HCPCS G0101). Source: CMS Medicare Physician & Other Practitioners file.