Ana Maria Castrillon, MD
Internal Medicine Physician · Holyoke, MA
Ana Maria Castrillon, MD is an internal medicine physician with a practice address in Holyoke, Massachusetts, and NPI 1932174570, issued on Feb 17, 2006. Check the license (Massachusetts 213156, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ana Maria Castrillon
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 213156 MA
Self-reported in NPPES; status is on the state search - Practice location
- 230 Maple St Ste 1, Holyoke, MA 01040
- Phone
- (413) 420-2200
- Enumerated
- Feb 17, 2006
- Record last updated
- Nov 12, 2025
- Fax
- (413) 534-5416
- Medicare enrollment
- Enrolled (PECOS I20060124000089); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 230 Maple St Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chithu Abraham, DDSDentist1043615321
- Jamie Abraham, DMD, MPHDentist1720665854
- Ayotunde Akinwande, DNP, APRN, FNP-BCFamily Nurse Practitioner1740112630
- Kefah Al-Ramahi, M.D.Internal Medicine Physician1235493008
- Matthew Antil, PHARMD, RPHPharmacist1467172056
- Muriel Appram, NPNurse Practitioner1639952401
Verify Ana Maria Castrillon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 213156Check 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% more Medicare Part D claims than the average internal medicine physician in 2024
5,105 Medicare Part D claims for 498 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 158 claims were for opioids.
Most prescribed
- Atorvastatin Calcium310 claims
- Lisinopril211 claims
- Amlodipine Besylate197 claims
- Gabapentin186 claims
- Fluticasone Propionate135 claims
- Metformin Hcl131 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.
Bills Medicare through one group practice
- Holyoke Health Center Inc.Holyoke, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ana Maria Castrillon among 6,825 internal medicine physician records in Massachusetts
Ana Maria Castrillon, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1995 · median 2004 among the 4,103 with a school on file
- Record last updated2025 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 internal medicine physician records list a practice address in Holyoke
They are 31 of the 1,961 NPPES records with a practice address in Holyoke, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Holyoke → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Purnima Adlakha, M.D.Holyoke, MA 010401487601175
- Tazeen Aleem, MDHolyoke, MA 010401760466494
- Vamseedhar Alla, M.D.Holyoke, MA 010401083646517
- Kenneth Aquilino, MDHolyoke, MA 010401770583668
- Vanessa Begolli, M.D.Holyoke, MA 010401770553562
- Alejandro Esparza-Perez, M.D.Holyoke, MA 010401124098595
- Thomas Judd, MDHolyoke, MA 010401780788802
- Andrew Levin, M.D.Holyoke, MA 010401033177233
Common questions
What is Ana Maria Castrillon, MD's NPI number?
Ana Maria Castrillon, MD's National Provider Identifier (NPI) is 1932174570, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ana Maria Castrillon, MD located?
The NPPES record lists a practice address at 230 Maple St Ste 1, Holyoke, MA, 01040. Phone: (413) 420-2200. Providers update this record themselves, so call before visiting.
How can I verify Ana Maria Castrillon, MD's license?
NPPES lists Massachusetts license number 213156, 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 Ana Maria Castrillon, MD prescribe under Medicare Part D?
In 2024, Ana Maria Castrillon, MD had 5,105 Medicare Part D claims for 498 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.