Susan S. Liang

  • Framingham, MA
  • Glaucoma specialist (ophthalmology) physician
NPI1235125980PAC ID3678535853
Medicare services, 2024
3,155
Medicare patients, 2024
973
Part D claims, 2024
5,131
Hospital affiliations
1
Industry payments
$3,572
Practice address
959 Concord St, Framingham, MA 01701
Practice phone
Call (617) 636-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Pratt Ophthalmology Associates Inc

Framingham, Massachusetts

See all 5 affiliations

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Susan S. Liang is a glaucoma specialist (ophthalmology) physician in Framingham, Massachusetts

Susan Liang practices at Pratt Ophthalmology Associates Inc in Framingham, Massachusetts.

Susan Liang's NPI, 1235125980, was assigned on September 27, 2005. Susan Liang graduated from State University of New York Downstate Medical Center in 2000. Susan Liang holds Massachusetts license 223991.

NPI and contact details
Medicare PAC ID
3678535853
NPI enumeration date
September 27, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(617) 636-5000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
52
Medical school graduation
2000

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Susan S. Liang practices at Pratt Ophthalmology Associates Inc in Framingham, Massachusetts

Susan Liang's primary practice is Pratt Ophthalmology Associates Inc, at 959 Concord St, Framingham, MA 01701 in Middlesex County. The practice phone is (617) 636-5000.

  • Pratt Ophthalmology Associates Inc
    959 Concord St, Framingham, MA 01701 · Middlesex CountyPhone(617) 636-5000

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Susan S. Liang is affiliated with 3 sites of care and 2 medical groups

Susan Liang's primary practice is Pratt Ophthalmology Associates Inc in Framingham, Massachusetts. Susan Liang is also affiliated with Tufts Medical Center. Dmand AI also links Susan Liang to 2 more medical groups and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Susan Liang

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Susan S. Liang's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Susan Liang practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Pratt Ophthalmology Associates IncAvailable with a free account
+2 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Susan S. Liang is one of 8 glaucoma specialist (ophthalmology) physicians in Massachusetts

Glaucoma specialist is Susan Liang's primary specialty in the NPI Registry, under taxonomy code 207WX0009X. Susan Liang is licensed in Massachusetts.

Specialties and state licenses

  • Glaucoma specialist (ophthalmology), MassachusettsPrimaryLicense 223991 · taxonomy 207WX0009X

Glaucoma specialist (ophthalmology) physicians near Susan Liang

Counts of glaucoma specialist (ophthalmology) physicians with a Dmand AI profile, by place and practice. Each opens the list.

8glaucoma specialist (ophthalmology) physicians in Massachusetts

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Susan S. Liang billed Medicare for 3,155 services in 2024

CMS data shows 3,155 Medicare services from Susan Liang across 15 procedure codes in 2024, for 973 Medicare patients. Medicare paid $251,059 for them.

Medicare services, 20243,155
Medicare patients973
Paid by Medicare$251,059
Procedure codes15

Susan Liang's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 2,1562024: 2,3559%
Office and hospital visits
2023: 4982024: 56513%
Surgery
2023: 2262024: 2212%
Other services
2023: 02024: 14

Where Susan Liang's Medicare services took place, 2024

  • In an office2,45878%
  • In a facility69722%

Susan Liang's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Source: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data

Susan S. Liang treated 973 Medicare patients in 2024, average age 77

CMS counts 973 Medicare patients who saw Susan Liang in 2024. The largest group is 75 to 84, with 442 patients. 74% of them have high cholesterol, and 72% have high blood pressure. 17% are also on Medicaid. Their average risk score is 1.11, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Susan Liang's median patient age at 73, with 56% women.

Medicare patients, 2024973
Average age77
Average risk score1.11
Also on Medicaid17%

Susan Liang's Medicare patients by age, 2024

Susan Liang's Medicare patients by sex, 2024

  • Women56058%
  • Men41342%

Chronic conditions among Susan Liang's Medicare patients, 2024

  1. High cholesterol74%
  2. High blood pressure72%
  3. Arthritis36%
  4. Diabetes30%
  5. Ischemic heart disease23%
  6. Chronic kidney disease22%
  7. Osteoporosis20%
  8. Anxiety18%

Share of Medicare patients with each condition. A patient can have several.

Susan Liang's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women56%
  • Men43%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Susan S. Liang wrote 5,131 Medicare Part D claims in 2024

In 2024, Susan Liang wrote 5,131 Medicare Part D claims for 967 patients. 71% of them were for generic drugs. CMS names the drug for 5,066 of them, across 32 drugs with 11 or more claims each, at $515,556 in total drug cost. In 2023, CMS named 4,217 claims across 29 drugs.

Part D claims, 20245,131
Drugs named by CMS32
Total drug cost$515,556
Part D patients967

Susan Liang's Part D claims by kind of drug, 2024

  • Generic3,665 claims71%
  • Brand-name1,466 claims29%

Susan Liang's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 4,2172024: 5,06620%

Drugs named by CMS: 32 in 2024, 29 in 2023.

See all prescribing by Susan Liang

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Susan S. Liang ranks in the 79th percentile for cataract surgery in Medicare

Susan Liang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 143 procedures of cataract surgery by Susan Liang, more than 79% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Susan Liang ranks in Medicare procedure volume

Cataract surgery
79th percentile143 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Susan S. Liang received $3,572 in industry payments from 2016 to 2025

CMS Open Payments shows 49 general payments to Susan Liang from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 60% of the total. Beaver-Visitec International, Inc. paid the most, $1,299.

General payments to Susan Liang by program year, 2016 to 2025

General payments to Susan Liang by kind, 2016 to 2025

$3.6Kin total
  • Food and beverage$2,14760%
  • Consulting fees$1,29936%
  • Travel and lodging$892%
  • Education$381%

Companies that paid Susan Liang the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Susan Liang

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Susan S. Liang graduated from State University of New York Downstate Medical Center

Susan Liang graduated from State University of New York Downstate Medical Center in 2000.

  1. Medical schoolState University of New York Downstate Medical Center

Source: Dmand AI Professional Profile Data

Sources for Susan S. Liang's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Susan S. Liang

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Susan S. Liang's NPI number?

Susan S. Liang's NPI number is 1235125980. It was assigned on September 27, 2005, and it is active in the NPI Registry.

What does Susan S. Liang specialize in?

Susan S. Liang is a glaucoma specialist (ophthalmology) physician in Framingham, Massachusetts. The primary specialty in the NPI Registry is Glaucoma Specialist (Ophthalmology) Physician (taxonomy code 207WX0009X).

Where does Susan S. Liang practice?

Susan Liang practices at 959 Concord St, Framingham, MA 01701. Susan Liang's primary practice is Pratt Ophthalmology Associates Inc in Framingham, Massachusetts. Dmand AI also links Susan Liang to 2 medical groups and 1 group practice or clinic.

What is Susan S. Liang's office phone number?

The practice phone on file for Susan Liang is (617) 636-5000.

What is Susan S. Liang's medical license number?

Susan Liang holds Massachusetts license 223991.

Which hospitals is Susan S. Liang affiliated with?

Susan Liang is affiliated with Tufts Medical Center.

Does Susan S. Liang accept Medicare?

Yes. CMS data shows Susan Liang billed Medicare for 3,155 services in 2024, and Susan Liang accepts Medicare assignment.

How many Medicare patients does Susan S. Liang see?

CMS counts 973 Medicare patients who saw Susan Liang in 2024, with an average age of 77.

What services does Susan S. Liang bill to Medicare?

In 2024, Susan Liang's most billed Medicare services were eye exam or test (92014), eye exam or test (92133) and eye exam or test (92083).

Where did Susan S. Liang go to medical school?

Susan Liang graduated from State University of New York Downstate Medical Center in 2000.

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What drugs does Susan S. Liang prescribe most?

In 2024 Medicare Part D data, Susan Liang's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Prednisolone Acetate.

Has Susan S. Liang received payments from drug or device companies?

CMS Open Payments shows $3,572 in general payments to Susan Liang from 15 companies from 2016 to 2025. The largest total came from Beaver-Visitec International, Inc.

How long has Susan S. Liang been practicing?

Susan Liang graduated from medical school in 2000, 26 years ago.

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