Stephanie J. Mandelman, M D
Obstetrics & Gynecology Physician · Westlake Village, CA
Stephanie J. Mandelman, M D is an obstetrics & gynecology physician with a practice address in Westlake Village, California, and NPI 1851315196, issued on Jul 27, 2006. Check the license (California A68965, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephanie J. Mandelman
- Credential
- M D
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A68965 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1250 LA Venta Dr, Westlake Village, CA 91361
- Phone
- (805) 496-0880
- Enumerated
- Jul 27, 2006
- Record last updated
- Aug 20, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (805) 496-6670
- Medicare enrollment
- Enrolled (PECOS I20120830000351); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 1250 LA Venta Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Chan, M.D.Neurological Surgery Physician1972531135
- Rauz Eshraghi, M.D.Internal Medicine Physician1619109378
- Leena Nathan, M.D.Obstetrics & Gynecology Physician1417170523
- Anita Pakula, MDDermatology Physician1205869625
- Kathleen RussellClinical Social Worker1801749577
- Elliott Schaffzin, MDOrthopaedic Surgery Physician1194821140
Verify Stephanie J. Mandelman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A68965Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
491 Medicare Part D claims for 167 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Estradiol95 claims
- Progesterone75 claims
- Estradiol (Twice Weekly)48 claims
- Yuvafem39 claims
- Fluconazole34 claims
- Nitrofurantoin Mono-Macro23 claims
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: $1,301.12
12 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, 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.
Stephanie J. Mandelman among 5,088 obstetrics & gynecology physician records in California
Stephanie J. Mandelman, M D is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1996 · median 2004 among the 2,700 with a school on file
- Record last updated2012 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Westlake Village → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Mirela CernaianuThousand Oaks, CA 913611467465120
- Jodi Ferro, M.D.Westlake Village, CA 913611285810762
- Christin Field, MDWestlake Village, CA 913611245201912
- Louise Garcia, M.D.Thousand Oaks, CA 913611134232457
- David Ghausi, D.O.Thousand Oaks, CA 913611023078342
- Orlin Liberman, MDWestlake Village, CA 913611790890457
- Karie McMurray, M.D.Thousand Oaks, CA 913611861660144
- Leena Nathan, M.D.Westlake Village, CA 913611417170523
Common questions
What is Stephanie J. Mandelman, M D's NPI number?
Stephanie J. Mandelman, M D's National Provider Identifier (NPI) is 1851315196, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephanie J. Mandelman, M D located?
The NPPES record lists a practice address at 1250 LA Venta Dr, Westlake Village, CA, 91361. Phone: (805) 496-0880. Providers update this record themselves, so call before visiting.
How can I verify Stephanie J. Mandelman, M D's license?
NPPES lists California license number A68965, 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 Stephanie J. Mandelman, M D prescribe under Medicare Part D?
In 2024, Stephanie J. Mandelman, M D had 491 Medicare Part D claims for 167 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.