Dr. Althea Marie Hamilton, MD
- Medicare services, 2024
- 61
- Medicare patients, 2024
- 187
- MIPS score, 2024
- 91
- Hospital affiliations
- 1
- Industry payments
- $212
- Practice address
- 1 Heros Way, Riverhead, NY 11901
- Practice phone
- Call (631) 548-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hamilton's professional email, personal email and mobile number
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Dr. Althea Marie Hamilton is an anesthesiologist in Riverhead, New York
Dr. Hamilton practices at Peconic Bay Medical Center in Riverhead, New York, part of Northwell Health.
Dr. Hamilton's NPI, 1508893991, was assigned on June 28, 2006. Dr. Hamilton graduated from Tufts University School of Medicine in 1985. Dr. Hamilton holds New Jersey license 25MA05581600.
- NPI
- 1508893991NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709987688
- NPI enumeration date
- June 28, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 548-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Althea Marie Hamilton practices at 2 locations in Riverhead, New York
Dr. Hamilton's primary practice is Peconic Bay Medical Center, at 1 Heros Way, Riverhead, NY 11901 in Suffolk County. The practice phone is (631) 548-6000. Dr. Hamilton also practices at Peconic Bay Medical Center, 1300 Roanoke Ave, Riverhead, NY 11901.
- Peconic Bay Medical CenterPrimary1 Heros Way, Riverhead, NY 11901 · Suffolk CountyPhone(631) 548-6000
- Peconic Bay Medical Center1300 Roanoke Ave, Riverhead, NY 11901 · Suffolk CountyPhone(631) 548-6000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Althea Marie Hamilton is affiliated with 3 sites of care and 3 medical groups
Dr. Hamilton's primary practice is Peconic Bay Medical Center in Riverhead, New York, part of Northwell Health. The medical group on file is NYU Langone Orthopedic Surgery Associates. Dmand AI also links Dr. Hamilton to 2 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Althea Marie Hamilton's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hamilton practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Peconic Bay Medical Center | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Althea Marie Hamilton is one of 3,858 anesthesiologists in New York
Anesthesiology is Dr. Hamilton's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Hamilton's licenses on file in 2 states: New Jersey and New York.
Specialties and state licenses
- Anesthesiology, New JerseyPrimary
- New York license
Anesthesiologists near Dr. Hamilton
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. Althea Marie Hamilton billed Medicare for 61 services in 2024
CMS data shows 61 Medicare services from Dr. Hamilton across 4 procedure codes in 2024, for 187 Medicare patients. Medicare paid $8,595 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hamilton's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1312024: 6153%
- Office and hospital visits
- 2023: 882024: 0100%
Dr. Hamilton compared with the New York median for anesthesiologists, 2024
- Dr. Hamilton
- New York median
- Medicare services
- 61vs 7620% below
- Medicare patients
- 187vs 13242% above
Medians across 3,723 anesthesiologists in New York with Dmand AI profiles that report each measure.
Dr. Hamilton'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. Althea Marie Hamilton treated 187 Medicare patients in 2024, average age 73
CMS counts 187 Medicare patients who saw Dr. Hamilton in 2024. The largest group is 65 to 74, with 81 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.80, 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. Hamilton's median patient age at 67, with 52% women.
Dr. Hamilton's Medicare patients by age, 2024
Dr. Hamilton's Medicare patients by sex, 2024
- Women10355%
- Men8445%
Chronic conditions among Dr. Hamilton's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Ischemic heart disease42%
- Diabetes40%
- Anxiety37%
- Chronic kidney disease32%
- Mood disorders32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hamilton's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women52%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Althea Marie Hamilton scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Hamilton for performance year 2024, reported as part of a group. Dr. Hamilton accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Hamilton's MIPS scores, performance year 2024
- 91of 100Final score
- 91.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 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. Althea Marie Hamilton received $212 in industry payments from 2016 to 2025
CMS Open Payments shows 9 general payments to Dr. Hamilton from 4 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $59.
General payments to Dr. Hamilton by program year, 2016 to 2025
Companies that paid Dr. Hamilton 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. Althea Marie Hamilton graduated from Tufts University School of Medicine
Dr. Hamilton graduated from Tufts University School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Althea Marie Hamilton'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 Affiliation DataDmand AI Practice 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)Clinician Public Reporting: Overall MIPS Performance (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. Althea Marie Hamilton
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. Althea Marie Hamilton's NPI number?
Dr. Althea Marie Hamilton's NPI number is 1508893991. It was assigned on June 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Althea Marie Hamilton?
Dr. Althea Marie Hamilton is an anesthesiologist in Riverhead, New York. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Althea Marie Hamilton practice?
Dr. Hamilton practices at 1 Heros Way, Riverhead, NY 11901. Dr. Hamilton also practices at 1300 Roanoke Ave, Riverhead, NY 11901. Dr. Hamilton's primary practice is Peconic Bay Medical Center in Riverhead, New York, part of Northwell Health. Dmand AI also links Dr. Hamilton to 2 group practices and clinics and 2 medical groups.
What is Dr. Althea Marie Hamilton's office phone number?
The practice phone on file for Dr. Hamilton is (631) 548-6000.
What is Dr. Althea Marie Hamilton's medical license number?
Dr. Hamilton holds New Jersey license 25MA05581600, one of the licenses on file in 2 states.
Which states has Dr. Althea Marie Hamilton been licensed in?
Dmand AI has state licenses on file for Dr. Hamilton in New Jersey and New York.
Which hospitals is Dr. Althea Marie Hamilton affiliated with?
Dr. Hamilton practices at Peconic Bay Medical Center in Riverhead, New York.
What medical group is Dr. Althea Marie Hamilton part of?
Dr. Hamilton is linked to NYU Langone Orthopedic Surgery Associates. Dmand AI links Dr. Hamilton to 2 more medical groups.
Does Dr. Althea Marie Hamilton accept Medicare?
Yes. CMS data shows Dr. Hamilton billed Medicare for 61 services in 2024, and Dr. Hamilton accepts Medicare assignment.
What is Dr. Althea Marie Hamilton's MIPS score?
Dr. Hamilton's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Althea Marie Hamilton see?
CMS counts 187 Medicare patients who saw Dr. Hamilton in 2024, with an average age of 73.
What services does Dr. Althea Marie Hamilton bill to Medicare?
In 2024, Dr. Hamilton's most billed Medicare services were anesthesia (00790), anesthesia (00731) and anesthesia (00910).
Where did Dr. Althea Marie Hamilton go to medical school?
Dr. Hamilton graduated from Tufts University School of Medicine in 1985.
Has Dr. Althea Marie Hamilton received payments from drug or device companies?
CMS Open Payments shows $212 in general payments to Dr. Hamilton from 4 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Althea Marie Hamilton been practicing?
Dr. Hamilton graduated from medical school in 1985, 41 years ago.
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