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Dr. William L. Weiss, MD, PC
NPI1881686368PAC ID7214901594
- Medicare services, 2024
- 2,702
- Medicare patients, 2024
- 138
- Part D claims, 2024
- 2,318
- Publications
- 3
- MIPS score, 2024
- 79
- Practice address
- 9250 W Thomas Rd, Phoenix, AZ 85037
- Practice phone
- Call (480) 930-4018
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
West Phoenix Surgical Center LLC
Phoenix, Arizona
Find Dr. Weiss' 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 L. Weiss is a nephrologist in Phoenix, Arizona
Dr. Weiss practices at West Phoenix Surgical Center LLC in Phoenix, Arizona.
Dr. Weiss' NPI, 1881686368, was assigned on August 19, 2005. Dr. Weiss graduated from R Franklin University of Med & Sci/Chicago Medical School in 1998. Dr. Weiss holds Arizona license 31284.
NPI and contact details
- NPI
- 1881686368NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214901594
- NPI enumeration date
- August 19, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (480) 930-4018
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William L. Weiss practices at West Phoenix Surgical Center LLC in Phoenix, Arizona
Dr. Weiss' primary practice is West Phoenix Surgical Center LLC, at 9250 W Thomas Rd, Phoenix, AZ 85037 in Maricopa County. The practice phone is (480) 930-4018.
- West Phoenix Surgical Center LLC9250 W Thomas Rd, Phoenix, AZ 85037 · Maricopa CountyPhone(480) 930-4018
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William L. Weiss is affiliated with 5 sites of care and 2 medical groups
Dr. Weiss' primary practice is West Phoenix Surgical Center LLC in Phoenix, Arizona. Dr. Weiss is also affiliated with Banner Estrella Medical Center. The medical group on file is City of Hope. Dmand AI also links Dr. Weiss to 2 more group practices and clinics, 1 dialysis center and 1 medical group, each named with a free account.
West Phoenix Surgical Center LLCPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. William L. Weiss' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weiss practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| West Phoenix Surgical Center LLC | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. William L. Weiss is one of 268 nephrologists in Arizona
Nephrology is Dr. Weiss' primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Weiss is licensed in Arizona.
Specialties and state licenses
- Nephrology, ArizonaPrimary
Nephrologists near Dr. Weiss
Counts of nephrologists 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 L. Weiss billed Medicare for 2,702 services in 2024
CMS data shows 2,702 Medicare services from Dr. Weiss across 9 procedure codes in 2024, for 138 Medicare patients. Medicare paid $134,680 for them.
Medicare services, 20242,702
Medicare patients138
Paid by Medicare$134,680
Procedure codes9
Dr. Weiss' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3,3742024: 2,58823%
- Tests and treatments
- 2023: 1042024: 11410%
Where Dr. Weiss' Medicare services took place, 2024
- In an office2,64098%
- In a facility622%
Dr. Weiss compared with the Arizona median for nephrologists, 2024
- Dr. Weiss
- Arizona median
- Medicare services
- 2,702vs 1,45985% above
- Medicare patients
- 138vs 40166% below
- Part D claims
- 2,087vs 8402.5 times
Medians across 272 nephrologists in Arizona with Dmand AI profiles that report each measure.
Dr. Weiss' 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.
Need commercial claims for Dr. Weiss?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Weiss and other nephrologists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William L. Weiss treated 138 Medicare patients in 2024, average age 76
CMS counts 138 Medicare patients who saw Dr. Weiss in 2024. The largest group is 75 to 84, with 48 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 18% are also on Medicaid. Their average risk score is 2.81, 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. Weiss' median patient age at 72, with 52% women.
Medicare patients, 2024138
Average age76
Average risk score2.81
Also on Medicaid18%
Dr. Weiss' Medicare patients by age, 2024
Dr. Weiss' Medicare patients by sex, 2024
- Women7353%
- Men6547%
Chronic conditions among Dr. Weiss' Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes52%
- Arthritis51%
- Ischemic heart disease45%
- COPD28%
- Anxiety25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Weiss' 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
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William L. Weiss wrote 2,318 Medicare Part D claims in 2024
In 2024, Dr. Weiss wrote 2,318 Medicare Part D claims for 344 patients. 86% of them were for generic drugs. CMS names the drug for 2,087 of them, across 33 drugs with 11 or more claims each, at $249,130 in total drug cost. In 2023, CMS named 2,203 claims across 34 drugs.
Part D claims, 20242,318
Drugs named by CMS33
Total drug cost$249,130
Part D patients344
Dr. Weiss' Part D claims by kind of drug, 2024
- Generic2,000 claims86%
- Brand-name318 claims14%
Dr. Weiss' 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.
Drug classes CMS tracks in Dr. Weiss' Part D claims, 2024
- Antibiotics4%101 of 2,318 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,2032024: 2,0875%
Drugs named by CMS: 33 in 2024, 34 in 2023.
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
Dr. William L. Weiss scored 79 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Weiss for performance year 2024, reported as part of a group. Dr. Weiss accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Weiss' MIPS scores, performance year 2024
- 79of 100Final score
- 66.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 58of 100Cost
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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Dr. William L. Weiss has 3 publications on record
Dmand AI links 3 papers to Dr. Weiss, published from 2021 to 2022.
Papers3
Years published2021 to 2022
Recent publications by Dr. Weiss
Ethiop J Health Sci
Anti-HIV AgentsAnti-Retroviral AgentsDelivery of Health Care
See who Dr. Weiss researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Weiss works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William L. Weiss received $8,459 in industry payments from 2016 to 2025
CMS Open Payments shows 309 general payments to Dr. Weiss from 29 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Amgen Inc. paid the most, $1,243.
General payments to Dr. Weiss by program year, 2016 to 2025
General payments to Dr. Weiss by kind, 2016 to 2025
$8.5Kin total
- Food and beverage$8,20097%
- Education$2593%
Companies that paid Dr. Weiss the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William L. Weiss graduated from R Franklin University of Med & Sci/Chicago Medical School
Dr. Weiss graduated from R Franklin University of Med & Sci/Chicago Medical School in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William L. Weiss'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 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)Clinician Public Reporting: Overall MIPS Performance (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 L. Weiss
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 L. Weiss' NPI number?
Dr. William L. Weiss' NPI number is 1881686368. It was assigned on August 19, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William L. Weiss?
Dr. William L. Weiss is a nephrologist in Phoenix, Arizona. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. William L. Weiss practice?
Dr. Weiss practices at 9250 W Thomas Rd, Phoenix, AZ 85037. Dr. Weiss' primary practice is West Phoenix Surgical Center LLC in Phoenix, Arizona. Dmand AI also links Dr. Weiss to 2 group practices and clinics, 1 dialysis center and 1 medical group.
What is Dr. William L. Weiss' office phone number?
The practice phone on file for Dr. Weiss is (480) 930-4018.
What is Dr. William L. Weiss' medical license number?
Dr. Weiss holds Arizona license 31284.
Which hospitals is Dr. William L. Weiss affiliated with?
Dr. Weiss is affiliated with Banner Estrella Medical Center.
What medical group is Dr. William L. Weiss part of?
Dr. Weiss is linked to City of Hope. Dmand AI links Dr. Weiss to 1 more medical group.
Does Dr. William L. Weiss accept Medicare?
Yes. CMS data shows Dr. Weiss billed Medicare for 2,702 services in 2024, and Dr. Weiss accepts Medicare assignment.
What is Dr. William L. Weiss' MIPS score?
Dr. Weiss' MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.
How many Medicare patients does Dr. William L. Weiss see?
CMS counts 138 Medicare patients who saw Dr. Weiss in 2024, with an average age of 76.
Show 6 more questionsShow fewer questions
What services does Dr. William L. Weiss bill to Medicare?
In 2024, Dr. Weiss' most billed Medicare services were care management and other visits (99458), care management and other visits (99439) and care management and other visits (99457).
Where did Dr. William L. Weiss go to medical school?
Dr. Weiss graduated from R Franklin University of Med & Sci/Chicago Medical School in 1998.
What drugs does Dr. William L. Weiss prescribe most?
In 2024 Medicare Part D data, Dr. Weiss' most prescribed drugs by claims were Furosemide, Amlodipine Besylate and Losartan Potassium.
Has Dr. William L. Weiss received payments from drug or device companies?
CMS Open Payments shows $8,459 in general payments to Dr. Weiss from 29 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. William L. Weiss been practicing?
Dr. Weiss graduated from medical school in 1998, 28 years ago.
Does Dr. William L. Weiss do research?
Dmand AI links 3 publications to Dr. Weiss, published from 2021 to 2022.
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