Helen Matthews, M.D.
Obstetrics & Gynecology Physician · San Ramon, CA
Helen Matthews, M.D. is an obstetrics & gynecology physician with a practice address in San Ramon, California, and NPI 1013015627, issued on Sep 20, 2006. Check the license (California A83428, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Helen Matthews
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A83428 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1081 Market PL, San Ramon, CA 94583
- Phone
- (925) 452-6644
- Enumerated
- Sep 20, 2006
- Entity
- Type 1 · individual
Also registered at 1081 Market PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Helen Matthews in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A83428Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
12% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
210 Medicare Part D claims for 81 beneficiaries, against an average of 188 among the 27,363 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Estradiol48 claims
- Clotrimazole-Betamethasone13 claims
- Clobetasol Propionate12 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: $118.63
3 payments, mostly food and beverage; the largest payer was Meditrina. The 20,757 providers of this specialty with any payment received $1,147.37 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.
2 hospital and facility affiliations
- Cottage Clinical AssociatesSanta Barbara, CA
- Cottage Medical FoundationGoleta, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Obstetrics & Gynecology Physician providers in California
There are 5,004 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
- Nicole Abell, DOVentura, CA1811243603
- Zachary AbelsonLos Angeles, CA1689237414
- Sina Abhari, MDNewport Beach, CA1073955290
- Ray Abinader, M.D.Loma Linda, CA1770901548
- Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
- Nada Abou-HaibaLos Angeles, CA1134067549
- Ariel Abrahams, MDDowney, CA1376726174
Common questions
What is Helen Matthews, M.D.'s NPI number?
Helen Matthews, M.D.'s National Provider Identifier (NPI) is 1013015627, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Helen Matthews, M.D. located?
The NPPES record lists a practice address at 1081 Market PL, San Ramon, CA, 94583. Phone: (925) 452-6644. Providers update this record themselves, so call before visiting.
How can I verify Helen Matthews, M.D.'s license?
NPPES lists California license number A83428, 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 Helen Matthews, M.D. prescribe under Medicare Part D?
In 2024, Helen Matthews, M.D. had 210 Medicare Part D claims for 81 beneficiaries; the average among obstetrics & gynecology physician prescribers was 188. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.