Portia Elizabeth Sirinek, M.D.
Ophthalmology Physician · Chestnut Hill, MA
Portia Elizabeth Sirinek, M.D. is an ophthalmology physician with a practice address in Chestnut Hill, Massachusetts, and NPI 1518321942, issued on Apr 12, 2016. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Portia Elizabeth Sirinek
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 338433 NY
Self-reported in NPPES; status is on the state search - Practice location
- 291 Independence Dr, Chestnut Hill, MA 02467
- Phone
- (617) 541-6375
- Enumerated
- Apr 12, 2016
- Record last updated
- Oct 4, 2025
- Fax
- (617) 541-6642
- Medicare enrollment
- Enrolled (PECOS I20250826003761); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 791 in Massachusetts → Look up another NPI →
Also registered at 291 Independence Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Portia Elizabeth Sirinek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average ophthalmology physician in 2024
4,186 Medicare Part D claims for 718 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Latanoprost1,178 claims
- Dorzolamide-Timolol492 claims
- Brimonidine Tartrate438 claims
- Prednisolone Acetate420 claims
- Timolol Maleate376 claims
- Dorzolamide Hcl239 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: $96.75
2 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
- Trustees OF Columbia University IN The City OF New YorkNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Portia Elizabeth Sirinek among 791 ophthalmology physician records in Massachusetts
Portia Elizabeth Sirinek, 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 2016, is newer than 80% of them.
- NPI issued2016 · 80% of these records are older, 17% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2016 · median 2002 among the 518 with a school on file
- Record last updated2025 · 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 Chestnut Hill → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- D. Halpern, PH.D., M.D.Chestnut Hill, MA 024671467488494
- James Rosenberg, M.D.Chestnut Hill, MA 024671699714683
- Amita Bhatt, M.D.Newton, MA 024621669429304
- Jill Carmody, M.D.Newton, MA 024621235376922
- Miriam Dougherty, M.D.Newton, MA 024621407073653
- Ralph Hinckley, MDNewton, MA 024621275629230
- Jay Kaufman, MDNewton, MA 024621245337419
- Marc Leibole, M.D.Newton, MA 024621598723991
Common questions
What is Portia Elizabeth Sirinek, M.D.'s NPI number?
Portia Elizabeth Sirinek, M.D.'s National Provider Identifier (NPI) is 1518321942, issued on Apr 12, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Portia Elizabeth Sirinek, M.D. located?
The NPPES record lists a practice address at 291 Independence Dr, Chestnut Hill, MA, 02467. Phone: (617) 541-6375. Providers update this record themselves, so call before visiting.
How can I verify Portia Elizabeth Sirinek, M.D.'s license?
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 Portia Elizabeth Sirinek, M.D. prescribe under Medicare Part D?
In 2024, Portia Elizabeth Sirinek, M.D. had 4,186 Medicare Part D claims for 718 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.