Gwen Maria Allen, M.D.
Obstetrics & Gynecology Physician · Gardena, CA
Gwen Maria Allen, M.D. is an obstetrics & gynecology physician with a practice address in Gardena, California, and NPI 1306942909, issued on Sep 15, 2006. Check the license (California A061790, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gwen Maria Allen
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A061790 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1045 W Redondo Beach Blvd, Gardena, CA 90247
- Phone
- (310) 329-9492
- Enumerated
- Sep 15, 2006
- Record last updated
- Jan 31, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (310) 329-3799
- Medicaid ID
- 00A617900 CA
- Medicare enrollment
- Enrolled (PECOS I20040701001611); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1994
- Entity
- Type 1 · individual
Also registered at 1045 W Redondo Beach Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elias Aguiar MontaniStudent in an Organized Health Care Education/Training Program1821982117
- Stephanie AguirreSpeech-Language Assistant1750255808
- Natasha BaezSocial Worker1790511004
- Johnsam BakPhysical Therapist1942914387
- Dara CafieroClinical Social Worker1730545161
- Mirna Calderon, RNPsychiatric/Mental Health Registered Nurse1972431179
Verify Gwen Maria Allen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A061790Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
74 Medicare Part D claims for 37 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $368.35
15 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
Other obstetrics & gynecology physician records in California
- Ingrid Aalami, MDSan Jose, CA1952376550
- Avisa Abaian- Eagar, M.D.Orange, CA1316057755
- Derek Abbassi, MDWalnut Creek, CA1841364155
- Ahmed Abdelaziz, MDSanta Maria, CA1790039733
- Alireza Abdollah Shamshirsaz, M.D.Palo Alto, CA1881804235
- Nicole Abell, DOVentura, CA1811243603
- Zachary AbelsonLos Angeles, CA1689237414
- Ray Abinader, M.D.Loma Linda, CA1770901548
- Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
- Nada Abou-HaibaLos Angeles, CA1134067549
Common questions
What is Gwen Maria Allen, M.D.'s NPI number?
Gwen Maria Allen, M.D.'s National Provider Identifier (NPI) is 1306942909, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gwen Maria Allen, M.D. located?
The NPPES record lists a practice address at 1045 W Redondo Beach Blvd, Gardena, CA, 90247. Phone: (310) 329-9492. Providers update this record themselves, so call before visiting.
How can I verify Gwen Maria Allen, M.D.'s license?
NPPES lists California license number A061790, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gwen Maria Allen, M.D. prescribe under Medicare Part D?
In 2024, Gwen Maria Allen, M.D. had 74 Medicare Part D claims for 37 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.