Ximena M. Castro, MD
Family Medicine Physician · Leominster, MA
Ximena M. Castro, MD is a family medicine physician with a practice address in Leominster, Massachusetts, and NPI 1245327386, issued on Oct 9, 2006. Check the license (Massachusetts 230300, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ximena M. Castro
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 230300 MA
Self-reported in NPPES; status is on the state search - Practice location
- 60 Hospital RD, Leominster, MA 01453
- Phone
- (978) 466-4169
- Enumerated
- Oct 9, 2006
- Record last updated
- Oct 28, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (978) 466-4164
- Medicare enrollment
- Enrolled (PECOS I20080920000061); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,265 in Massachusetts → Look up another NPI →
Also registered at 60 Hospital RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ximena M. Castro in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 230300Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average family medicine physician in 2024
369 Medicare Part D claims for 153 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Cefpodoxime Proxetil28 claims
- Omeprazole17 claims
- Prednisone16 claims
- Amoxicillin-Clavulanate Potass13 claims
- Oxycodone Hcl13 claims
- Clopidogrel12 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.
The MIPS final score for 2023 (Medicare payment program): 97 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Umass Memorial Medical Group IncClinton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ximena M. Castro among 2,265 family medicine physician records in Massachusetts
Ximena M. Castro, MD is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 55% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1992 · median 2006 among the 1,529 with a school on file
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 family medicine physician records list a practice address in Leominster
They are 36 of the 1,151 NPPES records with a practice address in Leominster, and 2,265 family medicine physician records in Massachusetts.
All 2,265 in Massachusetts → Every provider in Leominster → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- David Ammerman, MDLeominster, MA 014531730160169
- Felix Chang Cruz, M.D.Leominster, MA 014531336107846
- April Cyr, MDLeominster, MA 014531144202664
- Joseph Difranza, M.D.Leominster, MA 014531093798902
- Jennifer Hartman, MDLeominster, MA 014531861481160
- Dean Morrel, D.O.Leominster, MA 014531598756769
- Toral Parikh, MDLeominster, MA 014531992785919
- William Parker, MDLeominster, MA 014531598733511
Common questions
What is Ximena M. Castro, MD's NPI number?
Ximena M. Castro, MD's National Provider Identifier (NPI) is 1245327386, issued on Oct 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ximena M. Castro, MD located?
The NPPES record lists a practice address at 60 Hospital RD, Leominster, MA, 01453. Phone: (978) 466-4169. Providers update this record themselves, so call before visiting.
How can I verify Ximena M. Castro, MD's license?
NPPES lists Massachusetts license number 230300, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ximena M. Castro, MD prescribe under Medicare Part D?
In 2024, Ximena M. Castro, MD had 369 Medicare Part D claims for 153 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Ximena M. Castro, MD's MIPS final score?
The 2023 MIPS final score is 97 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.