Deborah Laura Brownstone, M.D.
Specialist · San Clemente, CA
Deborah Laura Brownstone, M.D. is a specialist with a practice address in San Clemente, California, and NPI 1821187857, issued on Oct 11, 2006. Check the license (California A42853, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Deborah Laura Brownstone
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- A42853 CA
Self-reported in NPPES; status is on the state search - Practice location
- 657 Camino DE Los Mares, San Clemente, CA 92673
- Phone
- (949) 489-9039
- Enumerated
- Oct 11, 2006
- Record last updated
- Oct 3, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 00A428530 CA
- Entity
- Type 1 · individual
Also registered at 657 Camino DE Los Mares
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelly Burris, LMFTCounselor1679917736
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- Roger Green, MDDermatology Physician1215917968
- Anmar Obaidi, D.D.S.General Practice Dentistry1255583126
- Amit Parag, MDPediatrics Physician1417097098
- Toral Parag, MDPediatrics Physician1538209119
Verify Deborah Laura Brownstone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A42853Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average specialist in 2024
12 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
9 specialist records list a practice address in San Clemente
They are 9 of the 969 NPPES records with a practice address in San Clemente, and 5,749 specialist records in California.
All 9 in San Clemente → All 5,749 in California → Every provider in San Clemente →
Other specialist records in California
- Fatemeh Abbasi, PTVan Nuys, CA1558496760
- Erlinda Abcede, M.D.Cudahy, CA1831228675
- Maher Abdallah, M.D.Palm Springs, CA1205988011
- Farinaz AbdiSan Marcos, CA1063153963
- Mai Abe, LESanta Monica, CA1609405158
- Hamid Abedi, HEARING AID SPECIALISan Diego, CA1659410744
- Jonas AbellaSan Francisco, CA1679760938
- Shreedhar Abhyankar, M.D.Indio, CA1861530669
- Elaine AbichRiverside, CA1780458927
- Mussarat Abidi, MDLadera Ranch, CA1053307769
Common questions
What is Deborah Laura Brownstone, M.D.'s NPI number?
Deborah Laura Brownstone, M.D.'s National Provider Identifier (NPI) is 1821187857, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Deborah Laura Brownstone, M.D. located?
The NPPES record lists a practice address at 657 Camino DE Los Mares, San Clemente, CA, 92673. Phone: (949) 489-9039. Providers update this record themselves, so call before visiting.
How can I verify Deborah Laura Brownstone, M.D.'s license?
NPPES lists California license number A42853, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Deborah Laura Brownstone, M.D. prescribe under Medicare Part D?
In 2024, Deborah Laura Brownstone, M.D. had 12 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.