Marisa Tieger, MD
NPI 1174972541 · Ophthalmology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marisa Tieger, MD is a Ophthalmology Physician provider in Boston, MA (NPI 1174972541).
Provider details
- NPI number
- 1174972541
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 283022 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,507 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Imaging of Retina92134 | 386 | $45 |
| Imaging of Retina92134 | 240 | $26 |
| Injection of Drug Into Eye67028 | 200 | $130 |
| Established Patient Complete Exam of Visual System92014 | 129 | $80 |
| Established Patient Complete Exam of Visual System92014 | 115 | $140 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 110 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 46 | 32 |
| Ketorolac Tromethamine | 44 | 29 |
| Dorzolamide Hcl | 17 | — |
| Timolol Maleate | 15 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 12 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$409 across 11 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-06-07
- Last updated
- 2020-06-29
- Certified
- 2020-06-29
Frequently asked questions
- What is Marisa Tieger's NPI number?
- Marisa Tieger's National Provider Identifier (NPI) is 1174972541, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marisa Tieger's specialty?
- Marisa Tieger is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Marisa Tieger located?
- Marisa Tieger's practice location on file with NPPES is 243 Charles St, Boston, MA 02114-3002.
- What is Marisa Tieger's phone number?
- The practice phone number listed in the NPPES registry for Marisa Tieger is (617) 573-3416.
- Does Marisa Tieger accept Medicare?
- Marisa Tieger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marisa Tieger's NPI active?
- Yes — Marisa Tieger's NPI (1174972541) is active in the NPPES registry as of the last update on 2020-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.