Dr. Jonathan Blair Lamphier, MD
- Medicare services, 2020
- 74
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 312
- Hospital affiliations
- 2
- Industry payments
- $260
- Practice address
- 600 St Johnsbury Road, Littleton, NH 03561
- Practice phone
- Call (603) 444-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lamphier'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. Jonathan Blair Lamphier is a gastroenterologist in Littleton, New Hampshire
Dr. Lamphier practices at Littleton Regional Healthcare in Littleton, New Hampshire, part of Dartmouth-Hitchcock Health.
Dr. Lamphier's NPI, 1013984244, was assigned on March 7, 2006. Dr. Lamphier graduated from Boston University School of Medicine in 1991. Dr. Lamphier holds New Hampshire license 9347.
- NPI
- 1013984244NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729029590
- NPI enumeration date
- March 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (603) 444-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan Blair Lamphier practices at Littleton Regional Healthcare in Littleton, New Hampshire
Dr. Lamphier's primary practice is Littleton Regional Healthcare, at 600 St Johnsbury Road, Littleton, NH 03561 in Grafton County. The practice phone is (603) 444-9000.
- Littleton Regional Healthcare600 St Johnsbury Road, Littleton, NH 03561 · Grafton CountyPhone(603) 444-9000
Source: Dmand AI Affiliation Data
Dr. Jonathan Blair Lamphier is affiliated with 2 sites of care and 2 medical groups
Dr. Lamphier's primary practice is Littleton Regional Healthcare in Littleton, New Hampshire, part of Dartmouth-Hitchcock Health. Dr. Lamphier is also affiliated with Speare Memorial Hospital. The medical group on file is Littleton Regional Healthcare. Dmand AI also links Dr. Lamphier to 1 more medical group, named with a free account. Dr. Lamphier's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathan Blair Lamphier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lamphier practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Littleton Regional Healthcare | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan Blair Lamphier is one of 87 gastroenterologists in New Hampshire
Gastroenterology is Dr. Lamphier's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Lamphier's licenses on file in 2 states: New Hampshire and North Carolina.
Specialties and state licenses
- Gastroenterology, New HampshirePrimary
- North Carolina license
Gastroenterologists near Dr. Lamphier
Counts of gastroenterologists 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. Jonathan Blair Lamphier billed Medicare for 74 services in 2020
CMS data shows 74 Medicare services from Dr. Lamphier across 5 procedure codes in 2020, for 12 Medicare patients. Medicare paid $6,244 for them.
Dr. Lamphier's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Surgery
- 2019: 3192020: 4586%
- Office and hospital visits
- 2019: 3242020: 2991%
- Other services
- 2019: 322020: 0100%
Where Dr. Lamphier's Medicare services took place, 2020
- In an office1622%
- In a facility5878%
Dr. Lamphier compared with the New Hampshire median for gastroenterologists, 2020
- Dr. Lamphier
- New Hampshire median
- Medicare services
- 74vs 49285% below
- Medicare patients
- 12vs 35797% below
- Part D claims
- 234vs 228Close to median
Medians across 82 gastroenterologists in New Hampshire with Dmand AI profiles that report each measure.
Dr. Lamphier's most billed Medicare procedure codes, 2020
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lamphier and other gastroenterologists in New Hampshire.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan Blair Lamphier treated 12 Medicare patients in 2024, average age 77
CMS counts 12 Medicare patients who saw Dr. Lamphier in 2024. The largest group is under 65, with 0 patients. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lamphier's median patient age at 65, with 56% women.
Dr. Lamphier's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lamphier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan Blair Lamphier wrote 312 Medicare Part D claims in 2024
In 2024, Dr. Lamphier wrote 312 Medicare Part D claims for 101 patients. 95% of them were for generic drugs. CMS names the drug for 234 of them, across 5 drugs with 11 or more claims each, at $5,046 in total drug cost. In 2023, CMS named 258 claims across 7 drugs.
Dr. Lamphier's Part D claims by kind of drug, 2024
- Generic295 claims95%
- Brand-name17 claims5%
Dr. Lamphier'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2582024: 2349%
Drugs named by CMS: 5 in 2024, 7 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. Jonathan Blair Lamphier ranks in the 63rd percentile for colonoscopy in Medicare
Dr. Lamphier accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 49 procedures of colonoscopy by Dr. Lamphier, more than 63% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Lamphier ranks in Medicare procedure volume
- Colonoscopy
- 63rd percentile49 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 53rd percentile25 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jonathan Blair Lamphier received $260 in industry payments from 2017 to 2025
CMS Open Payments shows 17 general payments to Dr. Lamphier from 12 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 90% of the total. Synergy Pharmaceuticals Inc paid the most, $42.
General payments to Dr. Lamphier by program year, 2017 to 2025
General payments to Dr. Lamphier by kind, 2017 to 2025
- Food and beverage$23490%
- Education$2510%
Companies that paid Dr. Lamphier the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jonathan Blair Lamphier graduated from Boston University School of Medicine
Dr. Lamphier graduated from Boston University School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jonathan Blair Lamphier'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)Doctors and Clinicians Utilization Data (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. Jonathan Blair Lamphier
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. Jonathan Blair Lamphier's NPI number?
Dr. Jonathan Blair Lamphier's NPI number is 1013984244. It was assigned on March 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Blair Lamphier?
Dr. Jonathan Blair Lamphier is a gastroenterologist in Littleton, New Hampshire. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Jonathan Blair Lamphier practice?
Dr. Lamphier practices at 600 St Johnsbury Road, Littleton, NH 03561. Dr. Lamphier's primary practice is Littleton Regional Healthcare in Littleton, New Hampshire, part of Dartmouth-Hitchcock Health. Dmand AI also links Dr. Lamphier to 1 medical group.
What is Dr. Jonathan Blair Lamphier's office phone number?
The practice phone on file for Dr. Lamphier is (603) 444-9000.
What is Dr. Jonathan Blair Lamphier's medical license number?
Dr. Lamphier holds New Hampshire license 9347, one of the licenses on file in 2 states.
Which states has Dr. Jonathan Blair Lamphier been licensed in?
Dmand AI has state licenses on file for Dr. Lamphier in New Hampshire and North Carolina.
Which hospitals is Dr. Jonathan Blair Lamphier affiliated with?
Dr. Lamphier practices at Littleton Regional Healthcare in Littleton, New Hampshire. Dr. Lamphier is also affiliated with Speare Memorial Hospital.
What medical group is Dr. Jonathan Blair Lamphier part of?
Dr. Lamphier is linked to Littleton Regional Healthcare. Dmand AI links Dr. Lamphier to 1 more medical group.
Does Dr. Jonathan Blair Lamphier accept Medicare?
Yes. CMS data shows Dr. Lamphier billed Medicare for 74 services in 2020, and Dr. Lamphier accepts Medicare assignment.
How many Medicare patients does Dr. Jonathan Blair Lamphier see?
CMS counts 12 Medicare patients who saw Dr. Lamphier in 2024, with an average age of 77.
Show 5 more questionsShow fewer questions
What services does Dr. Jonathan Blair Lamphier bill to Medicare?
In 2020, Dr. Lamphier's most billed Medicare services were surgery: digestive system (43239), office visit, new patient (99204) and surgery: digestive system (45380).
Where did Dr. Jonathan Blair Lamphier go to medical school?
Dr. Lamphier graduated from Boston University School of Medicine in 1991.
What drugs does Dr. Jonathan Blair Lamphier prescribe most?
In 2024 Medicare Part D data, Dr. Lamphier's most prescribed drugs by claims were Pantoprazole Sodium, Famotidine and Omeprazole.
Has Dr. Jonathan Blair Lamphier received payments from drug or device companies?
CMS Open Payments shows $260 in general payments to Dr. Lamphier from 12 companies from 2017 to 2025. The largest total came from Synergy Pharmaceuticals Inc.
How long has Dr. Jonathan Blair Lamphier been practicing?
Dr. Lamphier graduated from medical school in 1991, 35 years ago.
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