Miguel A. Castuera, PA-C
General Practice Physician · Montclair, CA
Miguel A. Castuera, PA-C is a general practice physician with a practice address in Montclair, California, and NPI 1679769897, issued on Sep 20, 2007. Check the license (California PA13087, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Miguel A. Castuera
- Credential
- PA-C
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- PA13087 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4451 Holt Blvd, Montclair, CA 91763
- Phone
- (909) 624-3033
- Enumerated
- Sep 20, 2007
- Record last updated
- Sep 20, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (909) 624-8440
- Entity
- Type 1 · individual
Verify Miguel A. Castuera in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license PA13087Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average general practice physician in 2024
6,556 Medicare Part D claims for 321 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 51 claims were for opioids.
Most prescribed
- Atorvastatin Calcium415 claims
- Metformin Hcl295 claims
- Alendronate Sodium269 claims
- Montelukast Sodium268 claims
- Levothyroxine Sodium233 claims
- Gabapentin223 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: $405.23
22 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 4,259 providers of this specialty with any payment received $1,273.40 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.
General Practice Physician providers in California
There are 1,956 general practice physician records in California.
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- Ryan Abbott, M.D.Los Angeles, CA1194016030
- Adel Abdelsayed, M.D.Huntington Park, CA1922164961
- Kashif Abdullah, M.D. , M.P.HSan Jose, CA1164651212
- Ilona Abraham, MDEncino, CA1700939576
- Jerry Abraham, MD, MPH, CMQLos Angeles, CA1932514874
- Azniv Abrahamian, M.D.North Hollywood, CA1033270293
- Elliot Abravanel, MDSan Marino, CA1821610114
Common questions
What is Miguel A. Castuera, PA-C's NPI number?
Miguel A. Castuera, PA-C's National Provider Identifier (NPI) is 1679769897, issued on Sep 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Miguel A. Castuera, PA-C located?
The NPPES record lists a practice address at 4451 Holt Blvd, Montclair, CA, 91763. Phone: (909) 624-3033. Providers update this record themselves, so call before visiting.
How can I verify Miguel A. Castuera, PA-C's license?
NPPES lists California license number PA13087, 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 Miguel A. Castuera, PA-C prescribe under Medicare Part D?
In 2024, Miguel A. Castuera, PA-C had 6,556 Medicare Part D claims for 321 beneficiaries; the average among general practice physician prescribers was 3,030. 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.