Dr. Thaddeus P. Dryja , MD
Ophthalmology • Boston, MA
243 Charles St
Boston, MA 021143002
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on September 1, 2005; this date does not establish years in practice.
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Published CMS data list 228 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 88305 — Pathology examination of tissue using a microscope, intermediate complexity: 107 service units.
- 88304 — Pathology examination of tissue using a microscope, moderately low complexity: 55 service units.
- 88313 — Special stained specimen slides to examine tissue including interpretation and report: 45 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 4 records in the table · Guide: How to read Medicare Part B data
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Fewer Medicare Part B services than 75% of clinicians listed under Ophthalmology in Boston, MA (2024, 180 clinicians with data). Median for this group: 1,057. Middle half: 277 to 2,414.
Fewer Medicare Part B services than 85% of clinicians listed under Ophthalmology in Massachusetts (2024, 482 clinicians with data). Median for this group: 1,836. Middle half: 620 to 3,509.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 450 in 2020 to 228 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
243 Charles St
Boston, MA 021143002
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Massachusetts Eye And Ear Associates, Inc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Yale University School Of Medicine
1976
What Public CMS Data Show
Ophthalmology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
155 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $5,402 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $4,212 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Open Payments general payments, program year 2020
All general payments: $10,436.34 across 14 records.
By nature of payment
- Consulting Fee: $8,500.00 across 2 records.
- Travel and Lodging: $1,587.40 across 5 records.
- Food and Beverage: $348.94 across 7 records.
Reporting-company totals
- Merck Sharp & Dohme Corporation: $10,436.34 across 14 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2020 (published June 30, 2026).
Years since graduation
50 years (graduated 1976)
CMS Doctors and Clinicians data list 1976 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2005
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Dryja has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Dryja as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Boston and Massachusetts
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 75% of clinicians listed under Ophthalmology in Boston, MA (2024, 180 clinicians with data). Median for this group: 1,057. Middle half: 277 to 2,414.
Fewer Medicare Part B services than 85% of clinicians listed under Ophthalmology in Massachusetts (2024, 482 clinicians with data). Median for this group: 1,836. Middle half: 620 to 3,509.
Medicare-allowed amount
A lower Medicare-allowed amount than 85% of clinicians listed under Ophthalmology in Boston, MA (2024, 180 clinicians with data). Median for this group: $110,271. Middle half: $25,163 to $220,753.
A lower Medicare-allowed amount than 90% of clinicians listed under Ophthalmology in Massachusetts (2024, 482 clinicians with data). Median for this group: $194,367. Middle half: $57,908 to $416,629.
Paid by Medicare
A lower Medicare payment amount than 85% of clinicians listed under Ophthalmology in Boston, MA (2024, 180 clinicians with data). Median for this group: $81,255. Middle half: $18,640 to $162,894.
A lower Medicare payment amount than 90% of clinicians listed under Ophthalmology in Massachusetts (2024, 482 clinicians with data). Median for this group: $144,463. Middle half: $40,965 to $304,911.
327 active clinicians are listed under Ophthalmology with a practice address in Boston, MA (792 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Boston
5.2% of these 327 clinicians have the CMS telehealth indicator.
56.6% of these 327 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 49% from 450 in 2020 to 228 in 2024.
- 2020: 450
- 2021: 233
- 2022: 223
- 2023: 216
- 2024: 228
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Medicare-allowed amount
Medicare-allowed amount decreased 58% from $12,906 in 2020 to $5,402 in 2024.
- 2020: $12,906
- 2021: $5,535
- 2022: $5,908
- 2023: $5,665
- 2024: $5,402
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Paid by Medicare
Paid by Medicare decreased 59% from $10,241 in 2020 to $4,212 in 2024.
- 2020: $10,241
- 2021: $4,305
- 2022: $4,489
- 2023: $4,411
- 2024: $4,212
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Industry payments (Open Payments)
Industry payments (Open Payments) increased 596% from $1,500.00 in 2019 to $10,436.34 in 2020.
- 2019: $1,500.00
- 2020: $10,436.34
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2020), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2020 (payments made January 1 – December 31, 2020): 14 records totaling $10,436.34.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Merck Sharp & Dohme Corporation |
Consulting Fee
Cash or cash equivalent
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— | General | $8,000.00 |
| Merck Sharp & Dohme Corporation |
Travel and Lodging
In-kind items and services
|
— | General | $763.96 |
| Merck Sharp & Dohme Corporation |
Travel and Lodging
In-kind items and services
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— | General | $550.80 |
| Merck Sharp & Dohme Corporation |
Consulting Fee
Cash or cash equivalent
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— | General | $500.00 |
| Merck Sharp & Dohme Corporation |
Travel and Lodging
Cash or cash equivalent
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— | General | $150.00 |
| Merck Sharp & Dohme Corporation |
Travel and Lodging
In-kind items and services
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— | General | $98.26 |
| Merck Sharp & Dohme Corporation |
Food and Beverage
In-kind items and services
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— | General | $93.97 |
| Merck Sharp & Dohme Corporation |
Food and Beverage
In-kind items and services
|
— | General | $49.99 |
| Merck Sharp & Dohme Corporation |
Food and Beverage
In-kind items and services
|
— | General | $49.99 |
| Merck Sharp & Dohme Corporation |
Food and Beverage
In-kind items and services
|
— | General | $49.99 |
| Merck Sharp & Dohme Corporation |
Food and Beverage
In-kind items and services
|
— | General | $40.00 |
| Merck Sharp & Dohme Corporation |
Food and Beverage
In-kind items and services
|
— | General | $40.00 |
| Merck Sharp & Dohme Corporation |
Food and Beverage
In-kind items and services
|
— | General | $25.00 |
| Merck Sharp & Dohme Corporation |
Travel and Lodging
In-kind items and services
|
— | General | $24.38 |
Source: CMS Open Payments, program year 2020, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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88305
Pathology examination of tissue using a microscope, intermediate complexity
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107 | 81 | $159.65 | $38.37 |
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88304
Pathology examination of tissue using a microscope, moderately low complexity
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55 | 48 | $64.00 | $11.68 |
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88313
Special stained specimen slides to examine tissue including interpretation and report
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45 | 38 | $50.67 | $12.38 |
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88300
Pathology examination of tissue using a microscope, limited examination
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21 | 20 | $19.00 | $4.60 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207W00000X
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
NUCC Taxonomy Code: 207ZP0105X
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - OPHTHALMOLOGY
I20040308000351
MA
5799673232
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Massachusetts Eye And Ear Associates, Inc
243 Charles St, Boston, MA 021143002
Phone: 6175237900
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Ophthalmology
Doctor of Medicine (M.D.)
Ophthalmology
Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
NPI status registered as active in NPPES database
Registered at 243 CHARLES ST, BOSTON, MA 021143002 (Tel: 6175733319)
Registered at PO BOX 8010, BOSTON, MA 021140916 (Tel: 6175734458)
Recorded as THADDEUS DRYJA, MD
Ophthalmology (license number reported to NPPES: MA 41891)
Pathology (license number reported to NPPES: MA 41891)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Ophthalmology Specialists in Boston
- Dr. Nicole Lifson, MD
- Kamden Kopani
- Dr. Leo Kim, MD, PhD
- Dr. Theodor Sauer, MD
- Dr. Eric Pierce, MD, PhD
- Ward Fickweiler
Mailing Address
Po Box 8010
Boston, MA 021140916
Phone: 6175734458