Dr. Ben E. Leff, MD
- Medicare services, 2024
- 1,382
- Medicare patients, 2024
- 460
- Part D claims, 2024
- 405
- Hospital affiliations
- 1
- Industry payments
- $1,401
- Practice address
- 9250 N 3rd St, Phoenix, AZ 85020
- Practice phone
- Call (602) 903-0360
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
North Mountain Surgery Center, LLC
Phoenix, Arizona
Find Dr. Leff'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. Ben E. Leff is an otolaryngologist in Phoenix, Arizona
Dr. Leff practices at North Mountain Surgery Center, LLC in Phoenix, Arizona.
Dr. Leff's NPI, 1699766303, was assigned on November 2, 2005. Dr. Leff graduated from University of Pittsburgh School of Medicine in 1994. Dr. Leff holds Arizona license 28302.
- NPI
- 1699766303NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931184850
- NPI enumeration date
- November 2, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (602) 903-0360
- 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. Ben E. Leff practices at North Mountain Surgery Center, LLC in Phoenix, Arizona
Dr. Leff's primary practice is North Mountain Surgery Center, LLC, at 9250 N 3rd St, Phoenix, AZ 85020 in Maricopa County. The practice phone is (602) 903-0360.
- North Mountain Surgery Center, LLC9250 N 3rd St, Phoenix, AZ 85020 · Maricopa CountyPhone(602) 903-0360
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ben E. Leff is affiliated with 3 sites of care and 1 medical group
Dr. Leff's primary practice is North Mountain Surgery Center, LLC in Phoenix, Arizona. Dr. Leff is also affiliated with HonorHealth John C. Lincoln Medical Center. The medical group on file is Advanced Ear, Nose & Throat Associates. Dmand AI also links Dr. Leff to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ben E. Leff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leff practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| North Mountain Surgery Center, LLC | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ben E. Leff is one of 148 otolaryngologists in Arizona
Otolaryngology is Dr. Leff's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Leff is licensed in Arizona.
Specialties and state licenses
- Otolaryngology, ArizonaPrimary
Otolaryngologists near Dr. Leff
Counts of otolaryngologists 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. Ben E. Leff billed Medicare for 1,382 services in 2024
CMS data shows 1,382 Medicare services from Dr. Leff across 13 procedure codes in 2024, for 460 Medicare patients. Medicare paid $80,673 for them. Every service was in an office.
Dr. Leff's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5662024: 71025%
- Tests and treatments
- 2023: 3562024: 43221%
- Surgery
- 2023: 1272024: 17135%
- Other services
- 2023: 372024: 363%
- Imaging
- 2023: 222024: 3350%
Dr. Leff compared with the Arizona median for otolaryngologists, 2024
- Dr. Leff
- Arizona median
- Medicare services
- 1,382vs 70895% above
- Medicare patients
- 460vs 29158% above
- Part D claims
- 245vs 13976% above
Medians across 154 otolaryngologists in Arizona with Dmand AI profiles that report each measure.
Dr. Leff'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.
Need commercial claims for Dr. Leff?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leff and other otolaryngologists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ben E. Leff treated 460 Medicare patients in 2024, average age 77
CMS counts 460 Medicare patients who saw Dr. Leff in 2024. The largest group is 75 to 84, with 187 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 3% are also on Medicaid. Their average risk score is 1.12, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Leff's median patient age at 68, with 51% women.
Dr. Leff's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Leff's Medicare patients by sex, 2024
- Women25756%
- Men20344%
Chronic conditions among Dr. Leff's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis47%
- Ischemic heart disease31%
- Chronic kidney disease25%
- Diabetes23%
- Osteoporosis21%
- Atrial fibrillation20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Leff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women51%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ben E. Leff wrote 405 Medicare Part D claims in 2024
In 2024, Dr. Leff wrote 405 Medicare Part D claims for 198 patients. 89% of them were for generic drugs. CMS names the drug for 245 of them, across 11 drugs with 11 or more claims each, at $5,458 in total drug cost. In 2023, CMS named 224 claims across 10 drugs.
Dr. Leff's Part D claims by kind of drug, 2024
- Generic362 claims89%
- Brand-name43 claims11%
Dr. Leff'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.
Drug classes CMS tracks in Dr. Leff's Part D claims, 2024
- Antibiotics27%111 of 405 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: 2242024: 2459%
Drugs named by CMS: 11 in 2024, 10 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
How Dr. Ben E. Leff takes part in Medicare
Dr. Leff accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ben E. Leff received $1,401 in industry payments from 2016 to 2025
CMS Open Payments shows 55 general payments to Dr. Leff from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $225.
General payments to Dr. Leff by program year, 2016 to 2025
Companies that paid Dr. Leff 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. Ben E. Leff graduated from University of Pittsburgh School of Medicine
Dr. Leff graduated from University of Pittsburgh School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ben E. Leff'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)Doctors and Clinicians Utilization Data (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. Ben E. Leff
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. Ben E. Leff's NPI number?
Dr. Ben E. Leff's NPI number is 1699766303. It was assigned on November 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Ben E. Leff?
Dr. Ben E. Leff is an otolaryngologist in Phoenix, Arizona. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Ben E. Leff practice?
Dr. Leff practices at 9250 N 3rd St, Phoenix, AZ 85020. Dr. Leff's primary practice is North Mountain Surgery Center, LLC in Phoenix, Arizona. Dmand AI also links Dr. Leff to 1 group practice or clinic.
What is Dr. Ben E. Leff's office phone number?
The practice phone on file for Dr. Leff is (602) 903-0360.
What is Dr. Ben E. Leff's medical license number?
Dr. Leff holds Arizona license 28302.
Which hospitals is Dr. Ben E. Leff affiliated with?
Dr. Leff is affiliated with HonorHealth John C. Lincoln Medical Center.
What medical group is Dr. Ben E. Leff part of?
Dr. Leff is linked to Advanced Ear, Nose & Throat Associates.
Does Dr. Ben E. Leff accept Medicare?
Yes. CMS data shows Dr. Leff billed Medicare for 1,382 services in 2024, and Dr. Leff accepts Medicare assignment.
How many Medicare patients does Dr. Ben E. Leff see?
CMS counts 460 Medicare patients who saw Dr. Leff in 2024, with an average age of 77.
What services does Dr. Ben E. Leff bill to Medicare?
In 2024, Dr. Leff's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and ear, nose and throat service (92557).
Show 4 more questionsShow fewer questions
Where did Dr. Ben E. Leff go to medical school?
Dr. Leff graduated from University of Pittsburgh School of Medicine in 1994.
What drugs does Dr. Ben E. Leff prescribe most?
In 2024 Medicare Part D data, Dr. Leff's most prescribed drugs by claims were Ipratropium Bromide, Doxycycline Hyclate and Amoxicillin-Clavulanate Potass.
Has Dr. Ben E. Leff received payments from drug or device companies?
CMS Open Payments shows $1,401 in general payments to Dr. Leff from 26 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Ben E. Leff been practicing?
Dr. Leff graduated from medical school in 1994, 32 years ago.
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