Wei Jun Gu
- Medicare services, 2024
- 381
- Medicare patients, 2024
- 215
- Part D claims, 2020
- 28
- MIPS score, 2024
- 93
- Hospital affiliations
- 2
- Practice address
- 1000 Tenth Avenue, New York, NY 10019
- Practice phone
- Call (212) 523-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Wei Jun Gu is an internist in New York, New York
Wei Jun Gu practices at Mount Sinai West in New York, New York, part of Mount Sinai Health System.
Wei Jun Gu's NPI, 1659875946, was assigned on March 21, 2018. Wei Jun Gu holds New York license 306627-01.
- NPI
- 1659875946NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921342817
- NPI enumeration date
- March 21, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 523-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Wei Jun Gu practices at Mount Sinai West in New York, New York
Wei Jun Gu's primary practice is Mount Sinai West, at 1000 Tenth Avenue, New York, NY 10019 in New York County. The practice phone is (212) 523-4000.
- Mount Sinai West1000 Tenth Avenue, New York, NY 10019 · New York CountyPhone(212) 523-4000
Source: Dmand AI Affiliation Data
Wei Jun Gu is affiliated with 3 sites of care and 1 medical group
Wei Jun Gu's primary practice is Mount Sinai West in New York, New York, part of Mount Sinai Health System. Wei Jun Gu is also affiliated with Long Island Jewish Medical Center. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Wei Jun Gu to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Wei Jun Gu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Wei Jun Gu practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Sinai West | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Wei Jun Gu is one of 9,643 internists in New York
Internal medicine is Wei Jun Gu's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Wei Jun Gu is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Wei Jun Gu
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
Wei Jun Gu billed Medicare for 381 services in 2024
CMS data shows 381 Medicare services from Wei Jun Gu across 3 procedure codes in 2024, for 215 Medicare patients. Medicare paid $38,818 for them. Every service was in a facility, such as a hospital, rather than an office.
Wei Jun Gu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2722024: 2614%
- Other services
- 2023: 02024: 120
Wei Jun Gu compared with the New York median for internists, 2024
- Wei Jun Gu
- New York median
- Medicare services
- 381vs 42611% below
- Medicare patients
- 215vs 15836% above
- Part D claims
- 28vs 62295% below
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Wei Jun Gu'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
Wei Jun Gu treated 215 Medicare patients in 2024, average age 78
CMS counts 215 Medicare patients who saw Wei Jun Gu in 2024. The largest group is 75 to 84, with 70 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 3.01, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Wei Jun Gu's median patient age at 72, with 63% women.
Wei Jun Gu's Medicare patients by age, 2024
Wei Jun Gu's Medicare patients by sex, 2024
- Women11152%
- Men10448%
Chronic conditions among Wei Jun Gu's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Diabetes56%
- Ischemic heart disease56%
- Chronic kidney disease52%
- Heart failure45%
- Mood disorders42%
Share of Medicare patients with each condition. A patient can have several.
Wei Jun Gu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women63%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Wei Jun Gu wrote 28 Medicare Part D claims in 2020
In 2020, Wei Jun Gu wrote 28 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $238 in total drug cost.
Wei Jun Gu'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.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Wei Jun Gu scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Wei Jun Gu for performance year 2024, reported through an alternative payment model (APM). Wei Jun Gu accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Wei Jun Gu's MIPS scores, performance year 2024
- 93of 100Final score
- 79.8of 100Quality
- 89of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Wei Jun Gu received $45 in industry payments in 2021
CMS Open Payments shows 1 general payment to Wei Jun Gu from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $45.
Companies that paid Wei Jun Gu the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Wei Jun Gu'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Wei Jun Gu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Wei Jun Gu's NPI number?
Wei Jun Gu's NPI number is 1659875946. It was assigned on March 21, 2018, and it is active in the NPI Registry.
What does Wei Jun Gu specialize in?
Wei Jun Gu is an internist in New York, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Wei Jun Gu practice?
Wei Jun Gu practices at 1000 Tenth Avenue, New York, NY 10019. Wei Jun Gu's primary practice is Mount Sinai West in New York, New York, part of Mount Sinai Health System. Dmand AI also links Wei Jun Gu to 1 group practice or clinic.
What is Wei Jun Gu's office phone number?
The practice phone on file for Wei Jun Gu is (212) 523-4000.
What is Wei Jun Gu's medical license number?
Wei Jun Gu holds New York license 306627-01.
Which hospitals is Wei Jun Gu affiliated with?
Wei Jun Gu practices at Mount Sinai West in New York, New York. Wei Jun Gu is also affiliated with Long Island Jewish Medical Center.
What medical group is Wei Jun Gu part of?
Wei Jun Gu is linked to Mount Sinai Institute for Liver Medicine.
Does Wei Jun Gu accept Medicare?
Yes. CMS data shows Wei Jun Gu billed Medicare for 381 services in 2024, and Wei Jun Gu accepts Medicare assignment.
What is Wei Jun Gu's MIPS score?
Wei Jun Gu's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Wei Jun Gu see?
CMS counts 215 Medicare patients who saw Wei Jun Gu in 2024, with an average age of 78.
Show 4 more questionsShow fewer questions
What services does Wei Jun Gu bill to Medicare?
In 2024, Wei Jun Gu's most billed Medicare services were hospital inpatient care (99223), medicare service (G0316) and care management and other visits (99497).
What drugs does Wei Jun Gu prescribe most?
In 2020 Medicare Part D data, Wei Jun Gu's most prescribed drugs by claims were Cefdinir and Pantoprazole Sodium.
Has Wei Jun Gu received payments from drug or device companies?
CMS Open Payments shows $45 in general payments to Wei Jun Gu from 1 company from 2021 to 2021. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
How long has Wei Jun Gu been practicing?
Wei Jun Gu graduated from medical school in 2018, 8 years ago.
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