Mary Dawn De Castro, M.D.
Family Medicine Physician · Moreno Valley, CA
Mary Dawn De Castro, M.D. is a family medicine physician with a practice address in Moreno Valley, California, and NPI 1194947176, issued on May 2, 2007. Check the license (California A99343, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mary Castro
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A99343 CA
Self-reported in NPPES; status is on the state search - Practice location
- 22675 Alessandro Blvd, Moreno Valley, CA 92553
- Phone
- (951) 571-2350
- Enumerated
- May 2, 2007
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (951) 571-2370
- Medicare enrollment
- Enrolled (PECOS I20110218000733); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 22675 Alessandro Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rosemarie Cabati-Ablir, NPFamily Nurse Practitioner1609173657
- Frederica Fayad, M.DPediatrics Physician1982900684
- Yassi Ghanbari, M.D.Family Medicine Physician1699110635
- Manjinder KaurFamily Nurse Practitioner1932688264
- Ian Kirby, FNPAdult Health Nurse Practitioner1639633084
- Sheila Loharuka, D.O.Internal Medicine Physician1316396351
Verify Mary Castro in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A99343Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
30% more Medicare Part D claims than the average family medicine physician in 2024
4,605 Medicare Part D claims for 328 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 161 claims were for opioids.
Most prescribed
- Atorvastatin Calcium504 claims
- Amlodipine Besylate270 claims
- Levothyroxine Sodium204 claims
- Losartan Potassium170 claims
- Rosuvastatin Calcium162 claims
- Lisinopril159 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
67 family medicine physician records list a practice address in Moreno Valley
They are 67 of the 2,698 NPPES records with a practice address in Moreno Valley, and 17,133 family medicine physician records in California.
All 67 in Moreno Valley → All 17,133 in California → Every provider in Moreno Valley →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Mary Dawn De Castro, M.D.'s NPI number?
Mary Dawn De Castro, M.D.'s National Provider Identifier (NPI) is 1194947176, issued on May 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Dawn De Castro, M.D. located?
The NPPES record lists a practice address at 22675 Alessandro Blvd, Moreno Valley, CA, 92553. Phone: (951) 571-2350. Providers update this record themselves, so call before visiting.
How can I verify Mary Dawn De Castro, M.D.'s license?
NPPES lists California license number A99343, 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 Mary Dawn De Castro, M.D. prescribe under Medicare Part D?
In 2024, Mary Dawn De Castro, M.D. had 4,605 Medicare Part D claims for 328 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.