John A. Marshall, DMD
- Medicare patients, 2024
- 20
- Part D claims, 2024
- 447
- Industry payments
- $23
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 200 Mill Road, Fairhaven, MA 02719
- Practice phone
- Call (508) 973-3210
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southcoast Health at Home
Home Health Agency - Main Office · Fairhaven, Massachusetts
Find John Marshall'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.
John A. Marshall is an oral and maxillofacial pathology dentist in Fairhaven, Massachusetts
John Marshall practices at Southcoast Health at Home in Fairhaven, Massachusetts.
John Marshall's NPI, 1154331395, was assigned on August 9, 2006. John Marshall graduated from Tufts University School of Dental Medicine in 1995. John Marshall holds Massachusetts license 18730.
- NPI
- 1154331395NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658370481
- NPI enumeration date
- August 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 973-3210
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John A. Marshall practices at Southcoast Health at Home in Fairhaven, Massachusetts
John Marshall's primary practice is Southcoast Health at Home, at 200 Mill Road, Fairhaven, MA 02719. The practice phone is (508) 973-3210.
- Southcoast Health at Home200 Mill Road, Fairhaven, MA 02719Phone(508) 973-3210
Source: Dmand AI Affiliation Data
John A. Marshall is affiliated with 2 sites of care and 1 medical group
John Marshall's primary practice is Southcoast Health at Home in Fairhaven, Massachusetts. Dmand AI also links John Marshall to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at John A. Marshall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Marshall practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southcoast Health at Home | 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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John A. Marshall is one of 17 orals and maxillofacial pathology dentists in Massachusetts
Oral and maxillofacial pathology is John Marshall's primary specialty in the NPI Registry, under taxonomy code 1223P0106X. John Marshall is licensed in Massachusetts.
Specialties and state licenses
- Oral and maxillofacial pathology dentist, MassachusettsPrimary
Orals and maxillofacial pathology dentists near John Marshall
Counts of orals and maxillofacial pathology dentists 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
John A. Marshall treated 20 Medicare patients in 2024, average age 74
CMS counts 20 Medicare patients who saw John Marshall in 2024. 75% of them have high cholesterol, and 65% have high blood pressure. Their average risk score is 0.72, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts John Marshall's median patient age at 24, with 54% women.
Chronic conditions among John Marshall's Medicare patients, 2024
- High cholesterol75%
- High blood pressure65%
Share of Medicare patients with each condition. A patient can have several.
John Marshall's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 24
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
John A. Marshall wrote 447 Medicare Part D claims in 2024
In 2024, John Marshall wrote 447 Medicare Part D claims for 181 patients. 99% of them were for generic drugs.
John Marshall's Part D claims by kind of drug, 2024
- Generic443 claims99%
- Brand-name and other4 claims1%
Drug classes CMS tracks in John Marshall's Part D claims, 2024
- Opioids36%160 of 447 claims
- Antibiotics39%173 of 447 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How John A. Marshall takes part in Medicare
John Marshall 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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John A. Marshall received $23 in industry payments in 2025
CMS Open Payments shows 1 general payment to John Marshall from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Geistlich Pharma, North America, Inc. paid the most, $23.
Companies that paid John Marshall the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
John A. Marshall graduated from Tufts University School of Dental Medicine
John Marshall graduated from Tufts University School of Dental Medicine in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for John A. Marshall'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 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 (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 John A. Marshall
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John A. Marshall's NPI number?
John A. Marshall's NPI number is 1154331395. It was assigned on August 9, 2006, and it is active in the NPI Registry.
What does John A. Marshall specialize in?
John A. Marshall is an oral and maxillofacial pathology dentist in Fairhaven, Massachusetts. The primary specialty in the NPI Registry is Oral and Maxillofacial Pathology Dentist (taxonomy code 1223P0106X).
Where does John A. Marshall practice?
John Marshall practices at 200 Mill Road, Fairhaven, MA 02719. John Marshall's primary practice is Southcoast Health at Home in Fairhaven, Massachusetts. Dmand AI also links John Marshall to 1 group practice or clinic and 1 medical group.
What is John A. Marshall's office phone number?
The practice phone on file for John Marshall is (508) 973-3210.
What is John A. Marshall's medical license number?
John Marshall holds Massachusetts license 18730.
Does John A. Marshall accept Medicare?
Yes. CMS lists John Marshall as accepting Medicare assignment.
How many Medicare patients does John A. Marshall see?
CMS counts 20 Medicare patients who saw John Marshall in 2024, with an average age of 74.
Where did John A. Marshall go to medical school?
John Marshall graduated from Tufts University School of Dental Medicine in 1995.
Has John A. Marshall received payments from drug or device companies?
CMS Open Payments shows $23 in general payments to John Marshall from 1 company from 2025 to 2025. The largest total came from Geistlich Pharma, North America, Inc.
How long has John A. Marshall been practicing?
John Marshall graduated from medical school in 1995, 31 years ago.
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