Dr. Gregory Sheehan, MD
- Medicare services, 2024
- 70
- Medicare patients, 2024
- 205
- Hospital affiliations
- 1
- Industry payments
- $103
- Medical group
- 1
- Practice address
- 300 Community Drive, Manhasset, NY 11030
- Practice phone
- Call (516) 562-0100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Gregory Sheehan is an anesthesiologist in Manhasset, New York
Dr. Sheehan practices at North Shore University Hospital in Manhasset, New York, part of Northwell Health.
Dr. Sheehan's NPI, 1114389749, was assigned on March 23, 2016. Dr. Sheehan graduated from Columbia University Vagelos College of Physicians and Surgeons in 2016. Dr. Sheehan holds California license A165880.
- NPI
- 1114389749NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466798046
- NPI enumeration date
- March 23, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (516) 562-0100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Sheehan practices at North Shore University Hospital in Manhasset, New York
Dr. Sheehan's primary practice is North Shore University Hospital, at 300 Community Drive, Manhasset, NY 11030 in Nassau County. The practice phone is (516) 562-0100.
- North Shore University Hospital300 Community Drive, Manhasset, NY 11030 · Nassau CountyPhone(516) 562-0100
Source: Dmand AI Affiliation Data
Dr. Gregory Sheehan is affiliated with 1 site of care and 1 medical group
Dr. Sheehan's primary practice is North Shore University Hospital in Manhasset, New York, part of Northwell Health. The medical group on file is North Shore-LIJ Anesthesiology, P.C.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory Sheehan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sheehan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| North Shore University Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Sheehan is one of 3,858 anesthesiologists in New York
Anesthesiology is Dr. Sheehan's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Sheehan is licensed in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. Sheehan
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. Gregory Sheehan billed Medicare for 70 services in 2024
CMS data shows 70 Medicare services from Dr. Sheehan across 5 procedure codes in 2024, for 205 Medicare patients. Medicare paid $13,760 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sheehan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 252024: 57128%
- Surgery
- 2023: 122024: 138%
Dr. Sheehan compared with the New York median for anesthesiologists, 2024
- Dr. Sheehan
- New York median
- Medicare services
- 70vs 768% below
- Medicare patients
- 205vs 13255% above
Medians across 3,723 anesthesiologists in New York with Dmand AI profiles that report each measure.
Dr. Sheehan'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. Sheehan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sheehan and other anesthesiologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Sheehan treated 205 Medicare patients in 2024, average age 75
CMS counts 205 Medicare patients who saw Dr. Sheehan in 2024. The largest group is 65 to 74, with 83 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.60, 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. Sheehan's median patient age at 62, with 58% women.
Dr. Sheehan's Medicare patients by age, 2024
Dr. Sheehan's Medicare patients by sex, 2024
- Women12762%
- Men7838%
Chronic conditions among Dr. Sheehan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis69%
- Ischemic heart disease44%
- Diabetes38%
- Mood disorders36%
- Anxiety35%
- Depression31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sheehan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Gregory Sheehan takes part in Medicare
Dr. Sheehan 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. Gregory Sheehan received $103 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Sheehan from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Halyard Health, Inc. paid the most, $103.
Companies that paid Dr. Sheehan the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Sheehan graduated from Columbia University Vagelos College of Physicians and Surgeons
Dr. Sheehan graduated from Columbia University Vagelos College of Physicians and Surgeons in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory Sheehan'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Gregory Sheehan
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. Gregory Sheehan's NPI number?
Dr. Gregory Sheehan's NPI number is 1114389749. It was assigned on March 23, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Sheehan?
Dr. Gregory Sheehan is an anesthesiologist in Manhasset, New York. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Gregory Sheehan practice?
Dr. Sheehan practices at 300 Community Drive, Manhasset, NY 11030. Dr. Sheehan's primary practice is North Shore University Hospital in Manhasset, New York, part of Northwell Health.
What is Dr. Gregory Sheehan's office phone number?
The practice phone on file for Dr. Sheehan is (516) 562-0100.
What is Dr. Gregory Sheehan's medical license number?
Dr. Sheehan holds California license A165880.
Which hospitals is Dr. Gregory Sheehan affiliated with?
Dr. Sheehan practices at North Shore University Hospital in Manhasset, New York.
What medical group is Dr. Gregory Sheehan part of?
Dr. Sheehan is linked to North Shore-LIJ Anesthesiology, P.C.
Does Dr. Gregory Sheehan accept Medicare?
Yes. CMS data shows Dr. Sheehan billed Medicare for 70 services in 2024, and Dr. Sheehan accepts Medicare assignment.
How many Medicare patients does Dr. Gregory Sheehan see?
CMS counts 205 Medicare patients who saw Dr. Sheehan in 2024, with an average age of 75.
What services does Dr. Gregory Sheehan bill to Medicare?
In 2024, Dr. Sheehan's most billed Medicare services were anesthesia (01402), anesthesia (01214) and surgery: brain, spine and nerves (64447).
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Where did Dr. Gregory Sheehan go to medical school?
Dr. Sheehan graduated from Columbia University Vagelos College of Physicians and Surgeons in 2016.
Has Dr. Gregory Sheehan received payments from drug or device companies?
CMS Open Payments shows $103 in general payments to Dr. Sheehan from 1 company from 2021 to 2021. The largest total came from Halyard Health, Inc.
How long has Dr. Gregory Sheehan been practicing?
Dr. Sheehan graduated from medical school in 2016, 10 years ago.
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