Santiago Julio Villazon, M.D.
Ophthalmology Physician · Wellesley, MA
Santiago Julio Villazon, M.D. is an ophthalmology physician with a practice address in Wellesley, Massachusetts, and NPI 1750484861, issued on Sep 6, 2006. Check the license (Massachusetts 150884, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Santiago Julio Villazon
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 150884 MA
041378 CT
MD10994 RI
Self-reported in NPPES; status is on the state search - Practice location
- 40 Walnut St Ste 101, Wellesley, MA 02481
- Phone
- (617) 796-3937
- Enumerated
- Sep 6, 2006
- Record last updated
- Feb 7, 2024
- Fax
- (617) 796-3938
- Medicare enrollment
- Enrolled (PECOS I20090224000528); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 791 in Massachusetts → Look up another NPI →
Verify Santiago Julio Villazon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 150884Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,405 Medicare Part D claims for 344 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Moxifloxacin491 claims
- Ketorolac Tromethamine458 claims
- Prednisolone Acetate420 claims
- Tobramycin16 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: $567.08
12 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 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.
Bills Medicare through one group practice
- Eye Care And Laser Surgery OF Newton-WellesleyWellesley, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Santiago Julio Villazon among 791 ophthalmology physician records in Massachusetts
Santiago Julio Villazon, M.D. is one of 791 ophthalmology physician records with a practice address in Massachusetts. 76% 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 23% of them.
- NPI issued2006 · 23% of these records are older, 48% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1992 · median 2002 among the 518 with a school on file
- Record last updated2024 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Massachusetts
There are 791 ophthalmology physician records in Massachusetts.
All 791 in Massachusetts → Every provider in Wellesley → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Deborah Eappen, M.D.Wellesley, MA 024811114974367
- Heidi Fischer, M.D.Wellesley, MA 024811134167430
- Robert Mandel, M.D.Wellesley, MA 024811568476661
- Ernest Sutcliffe, M.D.Wellesley Hills, MA 024811831116748
- Sheldon Buzney, MDWellesley, MA 024821902809593
- Larry Roth, M.D.Watertown, MA 024721750448452
- Deanna Ricker, M.D.Needham, MA 024921235112236
- Richard Floyd, MDWeston, MA 024931194790832
Common questions
What is Santiago Julio Villazon, M.D.'s NPI number?
Santiago Julio Villazon, M.D.'s National Provider Identifier (NPI) is 1750484861, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Santiago Julio Villazon, M.D. located?
The NPPES record lists a practice address at 40 Walnut St Ste 101, Wellesley, MA, 02481. Phone: (617) 796-3937. Providers update this record themselves, so call before visiting.
How can I verify Santiago Julio Villazon, M.D.'s license?
NPPES lists Massachusetts license number 150884, 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 Santiago Julio Villazon, M.D. prescribe under Medicare Part D?
In 2024, Santiago Julio Villazon, M.D. had 1,405 Medicare Part D claims for 344 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.