NPPES file of Aug 9, 2026

Miriam Englander-Paschalis Ilios, M.D.

Retina Specialist (Ophthalmology) Physician · Boston, MA

Miriam Englander-Paschalis Ilios, M.D. is a retina specialist (ophthalmology) physician with a practice address in Boston, Massachusetts, and NPI 1184853129, issued on Jul 13, 2009. Check the license (Massachusetts 258248, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1184853129
Name
Miriam Englander-Paschalis Ilios
Credential
M.D.
Primary taxonomy
Retina Specialist (Ophthalmology) Physician 207WX0107X
License numbers
258248 MA
L-239267 MA
Self-reported in NPPES; status is on the state search
Practice location
50 Staniford St, Boston, MA 02114
Phone
(617) 367-4800
Enumerated
Jul 13, 2009
Record last updated
Dec 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(617) 723-7028
Medicaid ID
110099770A MA
Medicare enrollment
Enrolled (PECOS I20140715001294); accepts Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 2008
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 50 Staniford St

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

  1. Mary Ahn, M.D.Child & Adolescent Psychiatry Physician1952429532
  2. Robert Amrhein, M.D.Specialist1972676781
  3. Richard Anderson, MDDermatology Physician1700869831
  4. Anjum Ansari, D.M.D.General Practice Dentistry1578783346
  5. Alison Avram, M.D.Dermatology Physician1083721781
  6. Mathew Avram, MDDermatology Physician1295717296

Verify Miriam Englander-Paschalis Ilios in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 258248
    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 Massachusetts 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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27% fewer Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024

454 Medicare Part D claims for 131 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.

  1. Miriam Englander-Paschalis Ilios454
  2. Specialty average620

Most prescribed

  1. Prednisolone Acetate141 claims
  2. Diclofenac Sodium55 claims
  3. Ofloxacin49 claims
  4. Erythromycin43 claims
  5. Ketorolac Tromethamine29 claims
  6. Dorzolamide-Timolol24 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

  1. Ophthalmic Consultants OF Boston IncBoston, MA

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

Miriam Englander-Paschalis Ilios among 32 retina specialist (ophthalmology) physician records in Massachusetts

Miriam Englander-Paschalis Ilios, M.D. is one of 32 retina specialist (ophthalmology) 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 2009, is newer than 47% of them.

  • NPI issued2009 · 47% of these records are older, 47% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2008 · median 2004 among the 22 with a school on file
  • Record last updated2021 · 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 207WX0107X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Retina Specialist (Ophthalmology) Physician providers in Massachusetts

There are 32 retina specialist (ophthalmology) physician records in Massachusetts.

The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes

  1. Brian Ballios, MD, PHDBoston, MA 021141447869839
  2. Tina ClearyBoston, MA 021141649243221
  3. Jeffrey HeierBoston, MA 021141578546917
  4. Kamron Khan, MD PHDBoston, MA 021141124785464
  5. Michael MorleyBoston, MA 021141942281902
  6. Chirag Shah, MDBoston, MA 021141487872412
  7. Torsten Wiegand, MDBoston, MA 021141861461402
  8. Andre Witkin, M.D.Boston, MA 021111285811216

Common questions

What is Miriam Englander-Paschalis Ilios, M.D.'s NPI number?

Miriam Englander-Paschalis Ilios, M.D.'s National Provider Identifier (NPI) is 1184853129, issued on Jul 13, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Miriam Englander-Paschalis Ilios, M.D. located?

The NPPES record lists a practice address at 50 Staniford St, Boston, MA, 02114. Phone: (617) 367-4800. Providers update this record themselves, so call before visiting.

How can I verify Miriam Englander-Paschalis Ilios, M.D.'s license?

NPPES lists Massachusetts license number 258248, 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 Miriam Englander-Paschalis Ilios, M.D. prescribe under Medicare Part D?

In 2024, Miriam Englander-Paschalis Ilios, M.D. had 454 Medicare Part D claims for 131 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. 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.