Dr. Stephen C. Lattanzi, MD
- Medicare services, 2024
- 1,905
- Medicare patients, 2024
- 385
- Part D claims, 2024
- 1,551
- MIPS score, 2024
- 100
- Hospital affiliations
- 3
- Practice address
- 365 Montauk Ave, New London, CT 06320
- Practice phone
- Call (860) 442-0711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lattanzi'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. Stephen C. Lattanzi is a hematologist and oncologist in New London, Connecticut
Dr. Lattanzi practices at Lawrence + Memorial Hospital in New London, Connecticut, part of Yale New Haven Health System.
Dr. Lattanzi's NPI, 1801894555, was assigned on July 7, 2005. Dr. Lattanzi graduated from University of Connecticut School of Medicine in 1989. Dr. Lattanzi holds Arkansas license E-9749.
- NPI
- 1801894555NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496748147
- NPI enumeration date
- July 7, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (860) 442-0711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen C. Lattanzi practices at Lawrence + Memorial Hospital in New London, Connecticut
Dr. Lattanzi's primary practice is Lawrence + Memorial Hospital, at 365 Montauk Ave, New London, CT 06320 in New London County. The practice phone is (860) 442-0711.
- Lawrence + Memorial Hospital365 Montauk Ave, New London, CT 06320 · New London CountyPhone(860) 442-0711
Source: Dmand AI Affiliation Data
Dr. Stephen C. Lattanzi is affiliated with 7 sites of care and 1 medical group
Dr. Lattanzi's primary practice is Lawrence + Memorial Hospital in New London, Connecticut, part of Yale New Haven Health System. Dr. Lattanzi is also affiliated with Yale New Haven Hospital. The medical group on file is Northeast Medical Group. Dmand AI also links Dr. Lattanzi to 1 more hospital, 3 hospices and 1 home health agency, 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. Stephen C. Lattanzi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lattanzi practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lawrence + Memorial Hospital | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen C. Lattanzi is one of 175 hematologists and oncologists in Connecticut
Hematology and oncology is Dr. Lattanzi's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dmand AI has Dr. Lattanzi's licenses on file in 2 states: Arkansas and Connecticut.
Specialties and state licenses
- Hematology and oncology, ArkansasPrimary
- Internal medicine, Connecticut
Hematologists and oncologists near Dr. Lattanzi
Counts of hematologists and oncologists 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. Stephen C. Lattanzi billed Medicare for 1,905 services in 2024
CMS data shows 1,905 Medicare services from Dr. Lattanzi across 11 procedure codes in 2024, for 385 Medicare patients. Medicare paid $106,056 for them.
Dr. Lattanzi's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,2362024: 1,2894%
- Other services
- 2023: 02024: 616
Where Dr. Lattanzi's Medicare services took place, 2024
- In an office1,70890%
- In a facility19710%
Dr. Lattanzi compared with the Connecticut median for hematologists and oncologists, 2024
- Dr. Lattanzi
- Connecticut median
- Medicare services
- 1,905vs 5413.5 times
- Medicare patients
- 385vs 20885% above
- Part D claims
- 1,238vs 4512.7 times
Medians across 168 hematologists and oncologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Lattanzi'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. Stephen C. Lattanzi treated 385 Medicare patients in 2024, average age 76
CMS counts 385 Medicare patients who saw Dr. Lattanzi in 2024. The largest group is 75 to 84, with 152 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 2.28, 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. Lattanzi's median patient age at 75, with 53% women.
Dr. Lattanzi's Medicare patients by age, 2024
Dr. Lattanzi's Medicare patients by sex, 2024
- Women20353%
- Men18247%
Chronic conditions among Dr. Lattanzi's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Chronic kidney disease35%
- Cancer34%
- Diabetes33%
- Mood disorders33%
- Anxiety32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lattanzi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen C. Lattanzi wrote 1,551 Medicare Part D claims in 2024
In 2024, Dr. Lattanzi wrote 1,551 Medicare Part D claims for 285 patients. 79% of them were for generic drugs. CMS names the drug for 1,238 of them, across 36 drugs with 11 or more claims each, at $1,261,724 in total drug cost. In 2023, CMS named 1,110 claims across 36 drugs.
Dr. Lattanzi's Part D claims by kind of drug, 2024
- Generic1,220 claims79%
- Brand-name and other331 claims21%
Dr. Lattanzi'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. Lattanzi's Part D claims, 2024
- Opioids21%322 of 1,551 claims
- Antibiotics2%35 of 1,551 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: 1,1102024: 1,23812%
Drugs named by CMS: 36 in 2024, 36 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. Stephen C. Lattanzi scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Lattanzi for performance year 2024, reported through an alternative payment model (APM). Dr. Lattanzi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lattanzi as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Lattanzi's MIPS scores, performance year 2024
- 100of 100Final score
- 86.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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. Stephen C. Lattanzi received $2,654 in industry payments from 2016 to 2024
CMS Open Payments shows 74 general payments to Dr. Lattanzi from 21 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 47% of the total. Incyte Corporation paid the most, $670.
General payments to Dr. Lattanzi by program year, 2016 to 2024
General payments to Dr. Lattanzi by kind, 2016 to 2024
- Food and beverage$1,24247%
- Consulting fees$1,07040%
- Education$34213%
Companies that paid Dr. Lattanzi the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen C. Lattanzi graduated from University of Connecticut School of Medicine
Dr. Lattanzi graduated from University of Connecticut School of Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen C. Lattanzi'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) |
| 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) |
| 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. Stephen C. Lattanzi
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. Stephen C. Lattanzi's NPI number?
Dr. Stephen C. Lattanzi's NPI number is 1801894555. It was assigned on July 7, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen C. Lattanzi?
Dr. Stephen C. Lattanzi is a hematologist and oncologist in New London, Connecticut. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Stephen C. Lattanzi practice?
Dr. Lattanzi practices at 365 Montauk Ave, New London, CT 06320. Dr. Lattanzi's primary practice is Lawrence + Memorial Hospital in New London, Connecticut, part of Yale New Haven Health System. Dmand AI also links Dr. Lattanzi to 1 hospital, 3 hospices and 1 home health agency.
What is Dr. Stephen C. Lattanzi's office phone number?
The practice phone on file for Dr. Lattanzi is (860) 442-0711.
What is Dr. Stephen C. Lattanzi's medical license number?
Dr. Lattanzi holds Arkansas license E-9749, one of the licenses on file in 2 states.
Which states has Dr. Stephen C. Lattanzi been licensed in?
Dmand AI has state licenses on file for Dr. Lattanzi in Arkansas and Connecticut.
Which hospitals is Dr. Stephen C. Lattanzi affiliated with?
Dr. Lattanzi practices at Lawrence + Memorial Hospital in New London, Connecticut. Dr. Lattanzi is also affiliated with Yale New Haven Hospital. Dmand AI links Dr. Lattanzi to 1 more hospital.
What medical group is Dr. Stephen C. Lattanzi part of?
Dr. Lattanzi is linked to Northeast Medical Group.
Does Dr. Stephen C. Lattanzi accept Medicare?
Yes. CMS data shows Dr. Lattanzi billed Medicare for 1,905 services in 2024, and Dr. Lattanzi accepts Medicare assignment.
Does Dr. Stephen C. Lattanzi offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lattanzi as offering telehealth services.
Show 7 more questionsShow fewer questions
What is Dr. Stephen C. Lattanzi's MIPS score?
Dr. Lattanzi's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Stephen C. Lattanzi see?
CMS counts 385 Medicare patients who saw Dr. Lattanzi in 2024, with an average age of 76.
What services does Dr. Stephen C. Lattanzi bill to Medicare?
In 2024, Dr. Lattanzi's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Stephen C. Lattanzi go to medical school?
Dr. Lattanzi graduated from University of Connecticut School of Medicine in 1989.
What drugs does Dr. Stephen C. Lattanzi prescribe most?
In 2024 Medicare Part D data, Dr. Lattanzi's most prescribed drugs by claims were Oxycodone HCl, Eliquis and Ondansetron ODT.
Has Dr. Stephen C. Lattanzi received payments from drug or device companies?
CMS Open Payments shows $2,654 in general payments to Dr. Lattanzi from 21 companies from 2016 to 2024. The largest total came from Incyte Corporation.
How long has Dr. Stephen C. Lattanzi been practicing?
Dr. Lattanzi graduated from medical school in 1989, 37 years ago.
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