Dr. Geoffrey L. Manton, MD
- Medicare services, 2024
- 28,819
- Medicare patients, 2024
- 1,391
- Hospital affiliations
- 2
- Industry payments
- $367
- Medical groups
- 5
- Practice address
- 166 Waterbury Rd, Prospect, CT 06712
- Practice phone
- Call (203) 756-6422
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Naugatuck Valley Gastroenterology Consultants LLC
Prospect, Connecticut
Find Dr. Manton'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. Geoffrey L. Manton is a diagnostic radiologist in Prospect, Connecticut
Dr. Manton practices at Naugatuck Valley Gastroenterology Consultants LLC in Prospect, Connecticut.
Dr. Manton's NPI, 1538249065, was assigned on October 17, 2006. Dr. Manton graduated from Sidney Kimmel Medical College at Thomas Jefferson University in 2000. Dr. Manton holds Connecticut license 043995.
- NPI
- 1538249065NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315978277
- NPI enumeration date
- October 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 756-6422
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Geoffrey L. Manton practices at Naugatuck Valley Gastroenterology Consultants LLC in Prospect, Connecticut
Dr. Manton's primary practice is Naugatuck Valley Gastroenterology Consultants LLC, at 166 Waterbury Rd, Prospect, CT 06712 in Naugatuck Vly County. The practice phone is (203) 756-6422.
- Naugatuck Valley Gastroenterology Consultants LLC166 Waterbury Rd, Prospect, CT 06712 · Naugatuck Vly CountyPhone(203) 756-6422
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Geoffrey L. Manton is affiliated with 8 sites of care and 5 medical groups
Dr. Manton's primary practice is Naugatuck Valley Gastroenterology Consultants LLC in Prospect, Connecticut. Dr. Manton is also affiliated with Griffin Hospital. The medical group on file is Diagnostic Imaging of Southbury. Dmand AI also links Dr. Manton to 1 more hospital, 5 group practices and clinics and 4 medical groups, each 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. Geoffrey L. Manton's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Manton practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Naugatuck Valley Gastroenterology Consultants LLC | Available with a free account |
| +7 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Geoffrey L. Manton is one of 472 diagnostic radiologists in Connecticut
Diagnostic radiology is Dr. Manton's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Manton is licensed in Connecticut.
Specialties and state licenses
- Diagnostic radiology, ConnecticutPrimary
Diagnostic radiologists near Dr. Manton
Counts of diagnostic radiologists 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. Geoffrey L. Manton billed Medicare for 28,819 services in 2024
CMS data shows 28,819 Medicare services from Dr. Manton across 40 procedure codes in 2024, for 1,391 Medicare patients. Medicare paid $130,673 for them.
Dr. Manton's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 23,7092024: 27,13714%
- Imaging
- 2023: 2,0212024: 1,65718%
- Tests and treatments
- 2023: 252024: 25No change
- Surgery
- 2023: 142024: 0100%
Where Dr. Manton's Medicare services took place, 2024
- In an office27,79496%
- In a facility1,0254%
Dr. Manton compared with the Connecticut median for diagnostic radiologists, 2024
- Dr. Manton
- Connecticut median
- Medicare services
- 28,819vs 2,06314.0 times
- Medicare patients
- 1,391vs 1,26210% above
Medians across 462 diagnostic radiologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Manton'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. Manton?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Manton and other diagnostic radiologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Geoffrey L. Manton treated 1,391 Medicare patients in 2024, average age 75
CMS counts 1,391 Medicare patients who saw Dr. Manton in 2024. The largest group is 65 to 74, with 478 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 33% are also on Medicaid. Their average risk score is 1.70, 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. Manton's median patient age at 61, with 56% women.
Dr. Manton's Medicare patients by age, 2024
Dr. Manton's Medicare patients by sex, 2024
- Women86362%
- Men52838%
Chronic conditions among Dr. Manton's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Anxiety38%
- Ischemic heart disease35%
- Diabetes34%
- Mood disorders34%
- Depression30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Manton's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women56%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Geoffrey L. Manton takes part in Medicare
Dr. Manton 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. Geoffrey L. Manton received $367 in industry payments from 2016 to 2025
CMS Open Payments shows 10 general payments to Dr. Manton from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. W. L. Gore & Associates, Inc. paid the most, $106.
General payments to Dr. Manton by program year, 2016 to 2025
Companies that paid Dr. Manton 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. Geoffrey L. Manton graduated from Sidney Kimmel Medical College at Thomas Jefferson University
Dr. Manton graduated from Sidney Kimmel Medical College at Thomas Jefferson University in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Geoffrey L. Manton'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) |
| 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. Geoffrey L. Manton
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. Geoffrey L. Manton's NPI number?
Dr. Geoffrey L. Manton's NPI number is 1538249065. It was assigned on October 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Geoffrey L. Manton?
Dr. Geoffrey L. Manton is a diagnostic radiologist in Prospect, Connecticut. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Geoffrey L. Manton practice?
Dr. Manton practices at 166 Waterbury Rd, Prospect, CT 06712. Dr. Manton's primary practice is Naugatuck Valley Gastroenterology Consultants LLC in Prospect, Connecticut. Dmand AI also links Dr. Manton to 1 hospital, 5 group practices and clinics and 4 medical groups.
What is Dr. Geoffrey L. Manton's office phone number?
The practice phone on file for Dr. Manton is (203) 756-6422.
What is Dr. Geoffrey L. Manton's medical license number?
Dr. Manton holds Connecticut license 043995.
Which hospitals is Dr. Geoffrey L. Manton affiliated with?
Dr. Manton is affiliated with Griffin Hospital. Dmand AI links Dr. Manton to 1 more hospital.
What medical group is Dr. Geoffrey L. Manton part of?
Dr. Manton is linked to Diagnostic Imaging of Southbury. Dmand AI links Dr. Manton to 4 more medical groups.
Does Dr. Geoffrey L. Manton accept Medicare?
Yes. CMS data shows Dr. Manton billed Medicare for 28,819 services in 2024, and Dr. Manton accepts Medicare assignment.
How many Medicare patients does Dr. Geoffrey L. Manton see?
CMS counts 1,391 Medicare patients who saw Dr. Manton in 2024, with an average age of 75.
What services does Dr. Geoffrey L. Manton bill to Medicare?
In 2024, Dr. Manton's most billed Medicare services were medical supplies or transport (A9575), medicare temporary code (Q9967) and diagnostic imaging (71045).
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Where did Dr. Geoffrey L. Manton go to medical school?
Dr. Manton graduated from Sidney Kimmel Medical College at Thomas Jefferson University in 2000.
Has Dr. Geoffrey L. Manton received payments from drug or device companies?
CMS Open Payments shows $367 in general payments to Dr. Manton from 7 companies from 2016 to 2025. The largest total came from W. L. Gore & Associates, Inc.
How long has Dr. Geoffrey L. Manton been practicing?
Dr. Manton graduated from medical school in 2000, 26 years ago.
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