Gonzalo Castaneda, MD
Adult Medicine Physician · Bellflower, CA
Gonzalo Castaneda, MD is an adult medicine physician with a practice address in Bellflower, California, and NPI 1376040709, issued on Apr 11, 2018. Check the license (California A173551, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gonzalo Castaneda
- Credential
- MD
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- A173551 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10005 Flower St, Bellflower, CA 90706
- Phone
- (562) 804-8112
- Enumerated
- Apr 11, 2018
- Record last updated
- Jan 26, 2024
- Fax
- (562) 526-6097
- Medicare enrollment
- Enrolled (PECOS I20211216000517); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 386 in California → Look up another NPI →
Also registered at 10005 Flower St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Victor Alcala, REGISTERED NURSERegistered Nurse1780104299
- Cristina Almeida, MDFamily Medicine Physician1386826287
- Jerlon Burton, RNAmbulatory Care Registered Nurse1225744741
- Abriana Cazares, LVNLicensed Vocational Nurse1114750122
- Sarah GatewoodLicensed Vocational Nurse1679348411
- Maria LopezLicensed Vocational Nurse1447127675
Verify Gonzalo Castaneda in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A173551Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average adult medicine physician in 2024
1,137 Medicare Part D claims for 124 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Atorvastatin Calcium115 claims
- Metformin Hcl65 claims
- Losartan Potassium50 claims
- Amlodipine Besylate49 claims
- Fluticasone Propionate36 claims
- Lisinopril34 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: $117.30
1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 664 providers of this specialty with any payment received $1,405.95 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.
Bills Medicare through one group practice
- County OF Los AngelesBellflower, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gonzalo Castaneda among 386 adult medicine physician records in California
Gonzalo Castaneda, MD is one of 386 adult medicine physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 79% of them.
- NPI issued2018 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2015 · median 2005 among the 187 with a school on file
- Record last updated2024 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in California
There are 386 adult medicine physician records in California.
All 386 in California → Every provider in Bellflower → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Tinh Vuong, D.OHarbor City, CA 907101750569885
- Tamara Maher, D.OLos Alamitos, CA 907201598750473
- Issa Botros, MDSan Pedro, CA 907321124227772
- Yogina Desai, M.D.Carson, CA 907451790043545
- Rehana Hethumuni, D.O.Montebello, CA 906401518054477
- Ria Andrade, M.D.La Habra, CA 906311093159493
- Nguyen Luu-Trong, M.D.Cypress, CA 906301780901140
- David LauLong Beach, CA 908041205281870
Common questions
What is Gonzalo Castaneda, MD's NPI number?
Gonzalo Castaneda, MD's National Provider Identifier (NPI) is 1376040709, issued on Apr 11, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Gonzalo Castaneda, MD located?
The NPPES record lists a practice address at 10005 Flower St, Bellflower, CA, 90706. Phone: (562) 804-8112. Providers update this record themselves, so call before visiting.
How can I verify Gonzalo Castaneda, MD's license?
NPPES lists California license number A173551, 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 Gonzalo Castaneda, MD prescribe under Medicare Part D?
In 2024, Gonzalo Castaneda, MD had 1,137 Medicare Part D claims for 124 beneficiaries; the average among adult medicine physician prescribers was 3,002. 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.