NPPES file of Aug 9, 2026

Mary Jane Sunga Castro, MD

Family Medicine Physician · Nederland, TX

Mary Jane Sunga Castro, MD is a family medicine physician with a practice address in Nederland, Texas, and NPI 1942301130, issued on Sep 26, 2006. Check the license (Texas N1576, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942301130
Name
Mary Jane Sunga Castro
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
N1576 TX
Self-reported in NPPES; status is on the state search
Practice location
2400 Highway 365, Nederland, TX 77627
Phone
(409) 833-9797
Enumerated
Sep 26, 2006
Record last updated
Jul 28, 2022
Fax
(409) 654-6810
Medicaid ID
212580903 TX
Medicare enrollment
Enrolled (PECOS I20100625000702); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2400 Highway 365

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. John Badlissi, MDInternal Medicine Physician1578753265
  2. William George, M.D.Internal Medicine Physician1144229659
  3. Eduardo Jaramillo, MDObstetrics & Gynecology Physician1477581205
  4. Michael Thomas, MDInternal Medicine Physician1801955349
  5. Kathryn Williamson, D.O.Family Medicine Physician1174522031

Verify Mary Jane Sunga Castro in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N1576
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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6.9 times the Medicare Part D claims of the average family medicine physician in 2024

24,366 Medicare Part D claims for 1,511 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 445 claims were for opioids.

  1. Mary Castro24,366
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium1,071 claims
  2. Amlodipine Besylate861 claims
  3. Levothyroxine Sodium832 claims
  4. Lovastatin738 claims
  5. Losartan Potassium684 claims
  6. Gabapentin655 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: $421.56

22 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Castro$421.56
  2. Specialty average$902.55

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

  1. Rhg OF Texas PABeaumont, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

13 family medicine physician records list a practice address in Nederland

They are 13 of the 178 NPPES records with a practice address in Nederland, and 11,119 family medicine physician records in Texas.

Other family medicine physician records in Texas

  1. Srinivasa Aaluri, MDEl Paso, TX1265566509
  2. Maira Aamir, MDShenandoah, TX1932660859
  3. Fakhrudin Aaseemah Mohamed, M.DAllen, TX1952782518
  4. So Abad, MDWichita Falls, TX1184624694
  5. Yoseph AbadiRichardson, TX1700742640
  6. Marcus Abadie, M.D.Athens, TX1104821107
  7. Montserrat Abadie Sole, M.D.Fort Worth, TX1245437078
  8. Sarah Abang-Hayes, M.D.San Antonio, TX1326244724
  9. Ahmad Abazid, M.DRichardson, TX1013238401
  10. Syed Abbas, M.D.Houston, TX1821267477

Common questions

What is Mary Jane Sunga Castro, MD's NPI number?

Mary Jane Sunga Castro, MD's National Provider Identifier (NPI) is 1942301130, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Jane Sunga Castro, MD located?

The NPPES record lists a practice address at 2400 Highway 365, Nederland, TX, 77627. Phone: (409) 833-9797. Providers update this record themselves, so call before visiting.

How can I verify Mary Jane Sunga Castro, MD's license?

NPPES lists Texas license number N1576, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mary Jane Sunga Castro, MD prescribe under Medicare Part D?

In 2024, Mary Jane Sunga Castro, MD had 24,366 Medicare Part D claims for 1,511 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.