Dr. Lillian Litong Zhao, MD
- Medicare services, 2024
- 216
- Medicare patients, 2024
- 128
- Part D claims, 2024
- 27
- Hospital affiliations
- 3
- Industry payments
- $331
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zhao's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Lillian Litong Zhao is an internist in Boston, Massachusetts
Dr. Zhao practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Zhao's NPI, 1932640158, was assigned on March 20, 2017. Dr. Zhao graduated from Albert Einstein College of Medicine of Yeshiva University in 2017. Dr. Zhao holds Massachusetts license 271040.
- NPI
- 1932640158NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921379843
- NPI enumeration date
- March 20, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lillian Litong Zhao practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Zhao's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Dr. Lillian Litong Zhao is affiliated with 7 sites of care and 5 medical groups
Dr. Zhao's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Zhao is also affiliated with Newton-Wellesley Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Zhao to 1 more hospital, 4 medical groups, 3 group practices and clinics and 1 community health center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lillian Litong Zhao's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zhao practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +6 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Lillian Litong Zhao is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Zhao's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zhao is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Zhao
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Lillian Litong Zhao billed Medicare for 216 services in 2024
CMS data shows 216 Medicare services from Dr. Zhao across 4 procedure codes in 2024, for 128 Medicare patients. Medicare paid $21,272 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Zhao's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2692024: 21620%
Dr. Zhao compared with the Massachusetts median for internists, 2024
- Dr. Zhao
- Massachusetts median
- Medicare services
- 216vs 43150% below
- Medicare patients
- 128vs 19434% below
- Part D claims
- 47vs 40288% below
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Zhao'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lillian Litong Zhao treated 128 Medicare patients in 2024, average age 76
CMS counts 128 Medicare patients who saw Dr. Zhao in 2024. The largest group is 65 to 74, with 43 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 42% are also on Medicaid. Their average risk score is 2.93, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Zhao's median patient age at 79, with 54% women.
Dr. Zhao's Medicare patients by age, 2024
Dr. Zhao's Medicare patients by sex, 2024
- Women5946%
- Men6954%
Chronic conditions among Dr. Zhao's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Anxiety62%
- Mood disorders61%
- Chronic kidney disease59%
- Ischemic heart disease59%
- Arthritis56%
- Depression55%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zhao's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lillian Litong Zhao wrote 27 Medicare Part D claims in 2024
In 2024, Dr. Zhao wrote 27 Medicare Part D claims for 14 patients. 81% of them were for generic drugs. They cover 3 drugs, with $436 in total drug cost. In 2019, CMS named 176 claims across 9 drugs.
Dr. Zhao's Part D claims by kind of drug, 2024
- Generic22 claims81%
- Brand-name and other5 claims19%
Dr. Zhao's most prescribed drugs by claims, 2020
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, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 1762020: 4773%
Drugs named by CMS: 3 in 2020, 9 in 2019.
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
How Dr. Lillian Litong Zhao takes part in Medicare
Dr. Zhao accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Lillian Litong Zhao received $331 in industry payments from 2022 to 2023
CMS Open Payments shows 2 general payments to Dr. Zhao from 2 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. Inari Medical, Inc. paid the most, $217.
General payments to Dr. Zhao by program year, 2022 to 2023
Companies that paid Dr. Zhao the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lillian Litong Zhao graduated from Albert Einstein College of Medicine of Yeshiva University
Dr. Zhao graduated from Albert Einstein College of Medicine of Yeshiva University in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Lillian Litong Zhao's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Lillian Litong Zhao
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Lillian Litong Zhao's NPI number?
Dr. Lillian Litong Zhao's NPI number is 1932640158. It was assigned on March 20, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Lillian Litong Zhao?
Dr. Lillian Litong Zhao is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Lillian Litong Zhao practice?
Dr. Zhao practices at 55 Fruit Street, Boston, MA 02114. Dr. Zhao's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Zhao to 1 hospital, 4 medical groups, 3 group practices and clinics and 1 community health center.
What is Dr. Lillian Litong Zhao's office phone number?
The practice phone on file for Dr. Zhao is (617) 726-2000.
What is Dr. Lillian Litong Zhao's medical license number?
Dr. Zhao holds Massachusetts license 271040.
Which hospitals is Dr. Lillian Litong Zhao affiliated with?
Dr. Zhao practices at Massachusetts General Hospital in Boston, Massachusetts. Dr. Zhao is also affiliated with Newton-Wellesley Hospital. Dmand AI links Dr. Zhao to 1 more hospital.
What medical group is Dr. Lillian Litong Zhao part of?
Dr. Zhao is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Zhao to 4 more medical groups.
Does Dr. Lillian Litong Zhao accept Medicare?
Yes. CMS data shows Dr. Zhao billed Medicare for 216 services in 2024, and Dr. Zhao accepts Medicare assignment.
How many Medicare patients does Dr. Lillian Litong Zhao see?
CMS counts 128 Medicare patients who saw Dr. Zhao in 2024, with an average age of 76.
What services does Dr. Lillian Litong Zhao bill to Medicare?
In 2024, Dr. Zhao's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
Show 4 more questionsShow fewer questions
Where did Dr. Lillian Litong Zhao go to medical school?
Dr. Zhao graduated from Albert Einstein College of Medicine of Yeshiva University in 2017.
What drugs does Dr. Lillian Litong Zhao prescribe most?
In 2020 Medicare Part D data, Dr. Zhao's most prescribed drugs by claims were Atorvastatin Calcium, Metformin HCl and Simvastatin.
Has Dr. Lillian Litong Zhao received payments from drug or device companies?
CMS Open Payments shows $331 in general payments to Dr. Zhao from 2 companies from 2022 to 2023. The largest total came from Inari Medical, Inc.
How long has Dr. Lillian Litong Zhao been practicing?
Dr. Zhao graduated from medical school in 2017, 9 years ago.
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