Matthew Cain, M.D.
Internal Medicine Physician · Saint Helena, CA
Matthew Cain, M.D. is an internal medicine physician with a practice address in Saint Helena, California, and NPI 1912210931, issued on Jul 19, 2010. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Matthew Cain
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 6 Woodland RD Ste 304, Saint Helena, CA 94574
- Phone
- (707) 963-7200
- Enumerated
- Jul 19, 2010
- Entity
- Type 1 · individual
Also registered at 6 Woodland RD Ste 304
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jordan LamastersPhysician Assistant1528681202
Verify Matthew Cain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
60% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,127 Medicare Part D claims for 315 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Eliquis265 claims
- Flecainide Acetate114 claims
- Metoprolol Succinate89 claims
- Xarelto82 claims
- Amiodarone Hcl70 claims
- Atorvastatin Calcium57 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: $6,369.69
142 payments, mostly food and beverage; the largest payer was Boston Scientific Corporation. The 65,274 providers of this specialty with any payment received $2,536.66 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
- Adventist Health Physicians NetworkSaint Helena, CA
- St. Helena HospitalSaint Helena, 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.
15 internal medicine physician records list a Saint Helena practice address
They are 15 of the 232 NPPES records with a Saint Helena practice address, and 20,403 internal medicine physician records in California.
All 15 in Saint Helena → All 20,403 in California → Every provider in Saint Helena →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Matthew Cain, M.D.'s NPI number?
Matthew Cain, M.D.'s National Provider Identifier (NPI) is 1912210931, issued on Jul 19, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Cain, M.D. located?
The NPPES record lists a practice address at 6 Woodland RD Ste 304, Saint Helena, CA, 94574. Phone: (707) 963-7200. Providers update this record themselves, so call before visiting.
How can I verify Matthew Cain, M.D.'s license?
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 Matthew Cain, M.D. prescribe under Medicare Part D?
In 2024, Matthew Cain, M.D. had 1,127 Medicare Part D claims for 315 beneficiaries; the average among internal medicine physician prescribers was 2,785. 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.