Medicare Enrolled

Dr. Michelle Liang, M.D.

Internal Medicine · Boston, MA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
800 WASHINGTON ST, Boston, MA 02111
6176364600
Registered in NPPES since 2009
NPI: 1437483310 verify on NPPES ↗
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Liang from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Liang

Dr. Michelle Liang is an internal medicine specialist in Boston, MA, with 16 years of NPI registration. Based on federal Medicare data, Dr. Liang performed 30,954 Medicare services in 2023. These records do not provide a deduplicated patient total.

Between the years covered by Open Payments, Dr. Liang received a total of $18,937 from 21 pharmaceutical and/or device companies across 152 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Liang is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 16 years of NPI registration ▲ Top 0% volume in MA $18,937 industry payments

Medicare Practice Summary — 2023

Medicare Utilization ↗
30,954
Medicare services
Top 0% in MA for internal medicine
Not available
Unique patients (not deduplicated)
$67
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

Procedure Volume Avg. paid Avg. submitted
Eye injection (Vabysmo/faricimab)
An injection of faricimab-svoa, a medication administered in 0.1 mg doses.
23,589 $29 $59
Retinal imaging (OCT scan)
This procedure involves imaging the retina to visualize its structure. It is used to examine the back of the eye.
2,546 $31 $177
Aflibercept eye injection (Eylea) 1,486 $684 $1,432
Eye injection for retinal disease
A procedure involving the administration of medication directly into the eye.
1,398 $96 $434
Comprehensive eye exam, established patient
A comprehensive examination of the visual system performed for a patient who has previously been seen by the provider.
1,238 $90 $369
Office visit, established patient (20-29 min)
An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition.
316 $64 $265
Bevacizumab injection, 10 mg
Administration of a 10 mg dose of bevacizumab medication via injection.
143 $54 $155
Office visit, established patient (30-39 min)
A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition.
109 $91 $361
Retinal photography (fundus photo)
This procedure involves taking photographs of the retina, the light-sensitive tissue at the back of the eye. It is used to document the condition of the eye's interior structures.
101 $25 $199
Comprehensive eye exam, new patient
A comprehensive examination of the visual system performed for a new patient.
15 $109 $443
Visual field test, extended
A test that maps your complete field of vision to detect blind spots or peripheral vision loss. Extended testing provides a more detailed assessment than a standard visual field exam.
13 $48 $212
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.

Industry Payment Transparency

Open Payments through 2024 ↗
$18,937
Total received (2018-2024)
Avg $2,705/year across 7 years
Top 8% in MA for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
21
Companies
152
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →

Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$836
2023
$5,690
2022
$1,329
2021
$577
2020
$2,257
2019
$6,851
2018
$1,397

Payments by company (2024)

Genentech USA, Inc.
$281
Regeneron Healthcare Solutions, Inc.
$179
Regeneron Pharmaceuticals, Inc.
$136
Alimera Sciences, Inc.
$132
Astellas Pharma US Inc
$52
Coherus Biosciences Inc.
$28
ABBVIE INC.
$27
Top 3 companies account for 71.4% of 2024 payments
All-time payments by company (2018-2024) ›
Allergan Inc.
$5,528
Genentech, Inc.
$4,257
Novartis Pharmaceuticals Corporation
$2,722
Regeneron Healthcare Solutions, Inc.
$1,555
Genentech USA, Inc.
$1,219
Regeneron Pharmaceuticals, Inc.
$917
Alcon Vision LLC
$670
Beaver-Visitec International, Inc.
$650
Alimera Sciences, Inc.
$528
ABBVIE INC.
$161
Astellas Pharma US Inc
$130
AstraZeneca Pharmaceuticals LP
$118
Spark Therapeutics, Inc.
$112
Second Sight Medical Products, Inc.
$111
Apellis Pharmaceuticals, Inc.
$108
Biogen, Inc.
$47
Coherus Biosciences Inc.
$28
Vyera Pharmaceuticals, LLC
$22
NOVARTIS PHARMACEUTICALS CORPORATION
$21
Allergan, Inc.
$16
Johnson & Johnson Surgical Vision, Inc.
$12
Top 3 companies account for 66.0% of all-time payments
Associated products mentioned in payments ›
Argus II Retinal Prosthesis System · BEOVU · BRILINTA · Cimerli · Constellation · Daraprim 30 Tablet in 1 Bottle · EYLEA · EYLEA AFLIBERCEPT INJECTION · EYLEA HD · ILUVIEN · Iluvien · Izervay · LUXTURNA · Lucentis · NGENUITY · OZURDEX · Syfovre · Tecnis Symfony Toric IOL · VABYSMO · Vabysmo · YUTIQ
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Looking for an internal medicine specialist in Boston?
Compare internal medicine physicians in the Boston area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Internal medicine physicians in nearby ZIP areas
5,553
County median income
$92,859
Nearest hospital to ZIP centroid (approximate)
TUFTS MEDICAL CENTER
0.0 mi

Data Sources

Provider Registry NPPES NPPES snapshot; verify current record
Medicare Enrollment PECOS PECOS snapshot
Practice Data Medicare Util. Annual (CY lag)
Industry Payments Open Payments CY 2024
Disciplinary History — Not included N/A

This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →

Summary

Dr. Liang is a mixed practice specialist, with above-average Medicare volume (top 0% in MA), with 16 years of NPI registration.

This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →

Frequently Asked Questions

Is Dr. Liang experienced with eye injection (vabysmo/faricimab)?
Based on Medicare claims data, Dr. Liang performed 23,589 eye injection (vabysmo/faricimab) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Liang receive payments from pharmaceutical companies?
Yes. Dr. Liang received a total of $18,937 from 21 companies across 152 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Liang's costs compare to other internal medicine physicians in Boston?
Dr. Liang's average Medicare payment per service is $67. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Liang) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
About this page

This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Industry payment disclosure alone establishes neither wrongdoing nor legality. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →