Ashley Marie Castillo
Internal Medicine Physician · Sacaton, AZ
Ashley Marie Castillo is an internal medicine physician with a practice address in Sacaton, Arizona, and NPI 1124448246, issued on Apr 17, 2014. Check the license (Arizona 53995, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ashley Marie Castillo
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 53995 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 483 W Seed Farm RD, Sacaton, AZ 85147
- Phone
- (602) 528-1200
- Enumerated
- Apr 17, 2014
- Record last updated
- Jun 20, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (602) 528-1483
- Medicare enrollment
- Enrolled (PECOS I20170921001323); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 483 W Seed Farm RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anthony Anderson, MDFamily Medicine Physician1811074834
- Colleen Austin, LMSWClinical Social Worker1073149837
- Juliandra Bailon, MS, LASACAddiction (Substance Use Disorder) Counselor1639786890
Verify Ashley Marie Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 53995Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,249 Medicare Part D claims for 64 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Lisinopril85 claims
- Atorvastatin Calcium77 claims
- Pantoprazole Sodium58 claims
- Albuterol Sulfate Hfa55 claims
- Amlodipine Besylate41 claims
- Tamsulosin Hcl39 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 practice group's MIPS final score for 2023 (Medicare payment program): 87 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Gila River Health Care CorporationSacaton, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashley Marie Castillo among 2,853 internal medicine physician records in Arizona
Ashley Marie Castillo is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 68% of them.
- NPI issued2014 · 68% of these records are older, 30% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2014 · median 2003 among the 1,643 with a school on file
- Record last updated2018 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 internal medicine physician records list a practice address in Sacaton
They are 15 of the 321 NPPES records with a practice address in Sacaton, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Sacaton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Eppehimer, MDSacaton, AZ 851471952385650
- Gilbert Harrison, MDSacaton, AZ 851471487942306
- Doina Jianu, MDSacaton, AZ 851471326003138
- Edwin Mgbam, MDSacaton, AZ 851471265492433
- Viji Murugavel, M.D.Sacaton, AZ 851471215918008
- Marius Nistor, M.D.Sacaton, AZ 851471932288495
- Jigna Patel, MDSacaton, AZ 851471376503755
- Swathi Ponnathota, M.D.Sacaton, AZ 851471437595527
Common questions
What is Ashley Marie Castillo's NPI number?
Ashley Marie Castillo's National Provider Identifier (NPI) is 1124448246, issued on Apr 17, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Ashley Marie Castillo located?
The NPPES record lists a practice address at 483 W Seed Farm RD, Sacaton, AZ, 85147. Phone: (602) 528-1200. Providers update this record themselves, so call before visiting.
How can I verify Ashley Marie Castillo's license?
NPPES lists Arizona license number 53995, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ashley Marie Castillo prescribe under Medicare Part D?
In 2024, Ashley Marie Castillo had 1,249 Medicare Part D claims for 64 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Ashley Marie Castillo's MIPS final score?
The 2023 MIPS final score is 87 of 100, reported for the practice group. 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.