Dr. William Louie Simpson, MD
- Medicare services, 2024
- 16,172
- Medicare patients, 2024
- 1,000
- Publications
- 22
- Hospital affiliations
- 3
- Industry payments
- $1,575
- Practice address
- 1176 5th Ave, New York, NY 10029
- Practice phone
- Call (212) 241-6381
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Mount Sinai Hospital
New York, New York
Find Dr. Simpson'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. William Louie Simpson is a diagnostic radiologist in New York, New York
Dr. Simpson practices at The Mount Sinai Hospital in New York, New York.
Dr. Simpson's NPI, 1285634451, was assigned on July 28, 2005. Dr. Simpson graduated from Medical University of South Carolina College of Medicine in 1994. Dr. Simpson holds New York license 202773.
- NPI
- 1285634451NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638258882
- NPI enumeration date
- July 28, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 241-6381
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Louie Simpson practices at The Mount Sinai Hospital in New York, New York
Dr. Simpson's primary practice is The Mount Sinai Hospital, at 1176 5th Ave, New York, NY 10029 in New York County. The practice phone is (212) 241-6381.
- The Mount Sinai Hospital1176 5th Ave, New York, NY 10029 · New York CountyPhone(212) 241-6381
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William Louie Simpson is affiliated with 8 sites of care and 4 medical groups
Dr. Simpson's primary practice is The Mount Sinai Hospital in New York, New York. Dr. Simpson is also affiliated with The Mount Sinai Hospital. The medical group on file is Mount Sinai Nuclear Medicine Associates. Dmand AI also links Dr. Simpson to 2 more hospitals, 4 group practices and clinics and 3 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Louie Simpson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Simpson practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Mount Sinai Hospital | Available with a free account |
| +7 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Louie Simpson is one of 2,697 diagnostic radiologists in New York
Diagnostic radiology is Dr. Simpson's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Simpson is licensed in New York.
Specialties and state licenses
- Diagnostic radiology, New YorkPrimary
Diagnostic radiologists near Dr. Simpson
Counts of diagnostic radiologists 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. William Louie Simpson billed Medicare for 16,172 services in 2024
CMS data shows 16,172 Medicare services from Dr. Simpson across 18 procedure codes in 2024, for 1,000 Medicare patients. Medicare paid $104,180 for them.
Dr. Simpson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 13,8842024: 15,0568%
- Imaging
- 2023: 8652024: 9308%
- Tests and treatments
- 2023: 1532024: 18622%
Where Dr. Simpson's Medicare services took place, 2024
- In an office15,60096%
- In a facility5724%
Dr. Simpson compared with the New York median for diagnostic radiologists, 2024
- Dr. Simpson
- New York median
- Medicare services
- 16,172vs 2,4146.7 times
- Medicare patients
- 1,000vs 1,15914% below
Medians across 2,610 diagnostic radiologists in New York with Dmand AI profiles that report each measure.
Dr. Simpson'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Simpson and other diagnostic radiologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Louie Simpson treated 1,000 Medicare patients in 2024, average age 72
CMS counts 1,000 Medicare patients who saw Dr. Simpson in 2024. The largest group is 65 to 74, with 411 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 36% are also on Medicaid. Their average risk score is 2.65, 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. Simpson's median patient age at 59, with 56% women.
Dr. Simpson's Medicare patients by age, 2024
Dr. Simpson's Medicare patients by sex, 2024
- Women51451%
- Men48649%
Chronic conditions among Dr. Simpson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Diabetes44%
- Ischemic heart disease40%
- Chronic kidney disease38%
- Cancer31%
- Heart failure30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Simpson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women56%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. William Louie Simpson takes part in Medicare
Dr. Simpson 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. William Louie Simpson has 22 publications on record
Dmand AI links 22 papers to Dr. Simpson, published from 2008 to 2025. 2024 was the busiest year, with 3. The most frequent topics are Magnetic Resonance Imaging, Contrast Media and Fallopian Tubes. Dr. Simpson has published most often in Clin Imaging. Dr. Simpson's most frequent co-authors are Eric J. Wilck, MD, Pamela Anastasia Argiriadi, MD and Yuki Bekki, MD.
Dr. Simpson's papers by year, 2014 to 2025
Topics Dr. Simpson writes about most
- Magnetic Resonance Imaging
- Contrast Media
- Fallopian Tubes
- Ultrasonography
- Carcinoma, Hepatocellular
- Fallopian Tube Diseases
- Liver
- Liver Neoplasms
Dr. Simpson's most frequent co-authors
- Eric J. Wilck, MD3 shared papers
- Pamela Anastasia Argiriadi, MD2 shared papers
- Yuki Bekki, MD2 shared papers
Recent publications by Dr. Simpson
Ultrasound Q
See who Dr. Simpson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Simpson works with, so you can find a warm path to the right diagnostic radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William Louie Simpson received $1,575 in industry payments from 2022 to 2023
CMS Open Payments shows 2 general payments to Dr. Simpson from 2 drug and device companies from 2022 to 2023. Consulting fees make up the largest share, 92% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $1,455.
General payments to Dr. Simpson by program year, 2022 to 2023
General payments to Dr. Simpson by kind, 2022 to 2023
- Consulting fees$1,45592%
- Food and beverage$1208%
Companies that paid Dr. Simpson 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. William Louie Simpson graduated from Medical University of South Carolina College of Medicine
Dr. Simpson graduated from Medical University of South Carolina College of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Louie Simpson'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. William Louie Simpson
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. William Louie Simpson's NPI number?
Dr. William Louie Simpson's NPI number is 1285634451. It was assigned on July 28, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William Louie Simpson?
Dr. William Louie Simpson is a diagnostic radiologist in New York, New York. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. William Louie Simpson practice?
Dr. Simpson practices at 1176 5th Ave, New York, NY 10029. Dr. Simpson's primary practice is The Mount Sinai Hospital in New York, New York. Dmand AI also links Dr. Simpson to 2 hospitals, 4 group practices and clinics and 3 medical groups.
What is Dr. William Louie Simpson's office phone number?
The practice phone on file for Dr. Simpson is (212) 241-6381.
What is Dr. William Louie Simpson's medical license number?
Dr. Simpson holds New York license 202773.
Which hospitals is Dr. William Louie Simpson affiliated with?
Dr. Simpson is affiliated with The Mount Sinai Hospital. Dmand AI links Dr. Simpson to 2 more hospitals.
What medical group is Dr. William Louie Simpson part of?
Dr. Simpson is linked to Mount Sinai Nuclear Medicine Associates. Dmand AI links Dr. Simpson to 3 more medical groups.
Does Dr. William Louie Simpson accept Medicare?
Yes. CMS data shows Dr. Simpson billed Medicare for 16,172 services in 2024, and Dr. Simpson accepts Medicare assignment.
How many Medicare patients does Dr. William Louie Simpson see?
CMS counts 1,000 Medicare patients who saw Dr. Simpson in 2024, with an average age of 72.
What services does Dr. William Louie Simpson bill to Medicare?
In 2024, Dr. Simpson's most billed Medicare services were medicare temporary code (Q9967), diagnostic imaging (74177) and ultrasound (76705).
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Where did Dr. William Louie Simpson go to medical school?
Dr. Simpson graduated from Medical University of South Carolina College of Medicine in 1994.
Has Dr. William Louie Simpson received payments from drug or device companies?
CMS Open Payments shows $1,575 in general payments to Dr. Simpson from 2 companies from 2022 to 2023. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. William Louie Simpson been practicing?
Dr. Simpson graduated from medical school in 1994, 32 years ago.
Does Dr. William Louie Simpson do research?
Dmand AI links 22 publications to Dr. Simpson, published from 2008 to 2025.
Who does Dr. William Louie Simpson publish with?
Dr. Simpson's most frequent co-authors are Eric J. Wilck, MD (3 shared papers), Pamela Anastasia Argiriadi, MD (2 shared papers) and Yuki Bekki, MD (2 shared papers).
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