Dr. William Neil Ambrosini, MD

  • Ithaca, NY
  • Anesthesiologist
NPI1881662898PAC ID5698947141
Medicare services, 2024
48
Medicare patients, 2024
141
Hospital affiliations
5
Industry payments
$84
Medical groups
8
Practice address
101 Dates Drive, Ithaca, NY 14850
Practice phone
Call (607) 274-4401
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Cayuga Medical Center

Hospital · Ithaca, New York

See all 16 affiliations

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Dr. William Neil Ambrosini is an anesthesiologist in Ithaca, New York

Dr. Ambrosini practices at Cayuga Medical Center in Ithaca, New York, part of Centralus Health.

Dr. Ambrosini's NPI, 1881662898, was assigned on March 8, 2006. Dr. Ambrosini graduated from University of Rochester Medical Center in 1983. Dr. Ambrosini's New York license number on file is 158785.

NPI and contact details
Medicare PAC ID
5698947141
NPI enumeration date
March 8, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(607) 274-4401
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
69
Medical school graduation
1983

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. William Neil Ambrosini practices at Cayuga Medical Center in Ithaca, New York

Dr. Ambrosini's primary practice is Cayuga Medical Center, at 101 Dates Drive, Ithaca, NY 14850 in Tompkins County. The practice phone is (607) 274-4401.

Source: Dmand AI Affiliation Data

Dr. William Neil Ambrosini is affiliated with 8 sites of care and 8 medical groups

Dr. Ambrosini's primary practice is Cayuga Medical Center in Ithaca, New York, part of Centralus Health. Dr. Ambrosini is also affiliated with Strong Memorial Hospital. The medical group on file is Cayuga Medical Associates. Dmand AI also links Dr. Ambrosini to 3 more hospitals, 7 medical groups, 1 community health center, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.

See all 16 affiliations for Dr. Ambrosini

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. William Neil Ambrosini's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ambrosini practices, 8 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Cayuga Medical CenterAvailable with a free account
+7 more sites and 7 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. William Neil Ambrosini is one of 3,858 anesthesiologists in New York

Anesthesiology is Dr. Ambrosini's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Ambrosini is board certified in anesthesiology by the American Board of Anesthesiology. Dr. Ambrosini has a license on file in New York.

Specialties and state licenses

  • Anesthesiology, New YorkPrimaryLicense 158785 · 1984 to 2025 · taxonomy 207L00000X

Anesthesiologists near Dr. Ambrosini

Counts of anesthesiologists 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 Neil Ambrosini billed Medicare for 48 services in 2024

CMS data shows 48 Medicare services from Dr. Ambrosini across 2 procedure codes in 2024, for 141 Medicare patients. Medicare paid $3,368 for them.

Medicare services, 202448
Medicare patients141
Paid by Medicare$3,368
Procedure codes2

Dr. Ambrosini's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Anesthesia
2023: 622024: 4823%
Surgery
2023: 132024: 0100%

Where Dr. Ambrosini's Medicare services took place, 2024

  • In an office2348%
  • In a facility2552%

Dr. Ambrosini compared with the New York median for anesthesiologists, 2024

  • Dr. Ambrosini
  • New York median
Medicare services
48vs 7637% below
Medicare patients
141vs 1327% above

Medians across 3,723 anesthesiologists in New York with Dmand AI profiles that report each measure.

Dr. Ambrosini'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. William Neil Ambrosini treated 141 Medicare patients in 2024, average age 69

CMS counts 141 Medicare patients who saw Dr. Ambrosini in 2024. The largest group is 65 to 74, with 59 patients. 72% of them have high blood pressure, and 70% have high cholesterol. 40% are also on Medicaid. Their average risk score is 1.71, 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. Ambrosini's median patient age at 59, with 54% women.

Medicare patients, 2024141
Average age69
Average risk score1.71
Also on Medicaid40%

Dr. Ambrosini's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Ambrosini's Medicare patients by sex, 2024

  • Women7150%
  • Men7050%

Chronic conditions among Dr. Ambrosini's Medicare patients, 2024

  1. High blood pressure72%
  2. High cholesterol70%
  3. Arthritis43%
  4. Mood disorders40%
  5. Depression35%
  6. Diabetes35%
  7. Anxiety33%
  8. Chronic kidney disease33%

Share of Medicare patients with each condition. A patient can have several.

Dr. Ambrosini'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

  • Women54%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

How Dr. William Neil Ambrosini takes part in Medicare

Dr. Ambrosini 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 Neil Ambrosini received $84 in industry payments from 2016 to 2022

CMS Open Payments shows 5 general payments to Dr. Ambrosini from 4 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. NeoTract Inc. paid the most, $35.

General payments to Dr. Ambrosini by program year, 2016 to 2022

Companies that paid Dr. Ambrosini the most, 2016 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Ambrosini

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. William Neil Ambrosini graduated from University of Rochester Medical Center

Dr. Ambrosini graduated from University of Rochester Medical Center in 1983.

  1. Medical schoolUniversity of Rochester Medical Center
  2. Board certified in anesthesiologyAmerican Board of Anesthesiology

Source: Dmand AI Professional Profile Data

Dr. William Neil Ambrosini accepts plans from 8 insurance carriers

Dr. Ambrosini is in network with 8 carriers, including MVP Health Care, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • MVP Health Care
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare
  • NY State Medicaid

Plan types Dr. Ambrosini accepts, by number of carriers

  1. PPO6
  2. Medicare5
  3. HMO3
  4. EPO2
  5. Medicaid2
  6. POS2

Source: Dmand AI Insurance Network Data

Sources for Dr. William Neil Ambrosini's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. William Neil Ambrosini

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 Neil Ambrosini's NPI number?

Dr. William Neil Ambrosini's NPI number is 1881662898. It was assigned on March 8, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. William Neil Ambrosini?

Dr. William Neil Ambrosini is an anesthesiologist in Ithaca, New York. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).

Where does Dr. William Neil Ambrosini practice?

Dr. Ambrosini practices at 101 Dates Drive, Ithaca, NY 14850. Dr. Ambrosini's primary practice is Cayuga Medical Center in Ithaca, New York, part of Centralus Health. Dmand AI also links Dr. Ambrosini to 3 hospitals, 7 medical groups, 1 community health center, 1 group practice or clinic and 1 ambulatory surgery center.

What is Dr. William Neil Ambrosini's office phone number?

The practice phone on file for Dr. Ambrosini is (607) 274-4401.

What is Dr. William Neil Ambrosini's medical license number?

Dr. Ambrosini's New York license number on file is 158785.

Which hospitals is Dr. William Neil Ambrosini affiliated with?

Dr. Ambrosini practices at Cayuga Medical Center in Ithaca, New York. Dr. Ambrosini is also affiliated with Strong Memorial Hospital. Dmand AI links Dr. Ambrosini to 3 more hospitals.

What medical group is Dr. William Neil Ambrosini part of?

Dr. Ambrosini is linked to Cayuga Medical Associates. Dmand AI links Dr. Ambrosini to 7 more medical groups.

Does Dr. William Neil Ambrosini accept Medicare?

Yes. CMS data shows Dr. Ambrosini billed Medicare for 48 services in 2024, and Dr. Ambrosini accepts Medicare assignment.

How many Medicare patients does Dr. William Neil Ambrosini see?

CMS counts 141 Medicare patients who saw Dr. Ambrosini in 2024, with an average age of 69.

Is Dr. William Neil Ambrosini board certified?

Yes. Dr. Ambrosini is board certified in anesthesiology by the American Board of Anesthesiology.

Show 5 more questionsShow fewer questions

What services does Dr. William Neil Ambrosini bill to Medicare?

In 2024, Dr. Ambrosini's most billed Medicare services were anesthesia (00104) and anesthesia (00142).

Where did Dr. William Neil Ambrosini go to medical school?

Dr. Ambrosini graduated from University of Rochester Medical Center in 1983.

Has Dr. William Neil Ambrosini received payments from drug or device companies?

CMS Open Payments shows $84 in general payments to Dr. Ambrosini from 4 companies from 2016 to 2022. The largest total came from NeoTract Inc.

How long has Dr. William Neil Ambrosini been practicing?

Dr. Ambrosini graduated from medical school in 1983, 43 years ago.

What insurance does Dr. William Neil Ambrosini accept?

Dr. Ambrosini is in network with 8 carriers, including MVP Health Care, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.

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